Satchwell IAC 600 User manual

DS 2.951A 05/98
IAC 600
WIRING AND COMMISSIONING INFORMATION FOR
UNIVERSAL MULTI-LOOP INTELLIGENT
ADVANCED CONTROLLER 600
Spec No: IAC 600 Base Unit – 565-3-201
Touch-screen Unit – 565-3-402
Remote Touch-screen Adaptor Kit – 565-2-601
GENERAL CONTROLLER DETAILS
The IAC has been desi
g
ned to be a ver
y
flexible controller and can be
confi
g
ured for use in a lar
g
e number of different applications.
The IAC comes with a number of preset applications that can be
selected b
y
the user. These applications ma
y
then be further
customised b
y
the user if required. Once an IAC 600 has been
customised it is possible to save this new confi
g
uration in Satchnet
and use it on an
y
other IAC 600s as required.
The IAC 600 Touch-screen allows direct viewin
g
/modification of
selected parameters on an
y
IAC connected to its sub LAN. The IAC
600s confi
g
uration and settin
g
of parameters is carried out from a
DS 2.10/2.951 – Specification Information
DS 5.00A/2.501A– Commissioning Details
MLI 2.10/2.951 - Mounting Details
computer runnin
g
the Satchnet Bubbleland software. See
y
our
Satchnet User Guide for details of usin
g
Bubbleland. In the event of
a power failure, the IAC clock will stop until it is reset b
y
the
computer, a Touch-screen or re-s
y
nchronized b
y
the di
g
ital input.
The computer and Touch-screen broadcast the time on a re
g
ular
basis. On restoration of power, the IAC will run from the last known
time before power failure.
The IAC is made up from a number of discrete modules as shown
below:-
MODULE LIST Page
INPUT/OUTPUT MODULES No.
Di
g
ital Input Module ................................................3
Temperature Input Module......................................3
Analo
g
ue Input Module...........................................3
Di
g
ital Output Module..............................................3
Analo
g
ue Output Module ........................................3
MATHS MODULES
Subtraction Module.................................................3
Multiplication Module...............................................3
Division Module.......................................................3
Addition Module ......................................................3
Sample & Hold Module ...........................................3
H
y
steresis Module...................................................3
Analo
g
ue Switch Module.........................................3
Analo
g
ue Avera
g
in
g
Module...................................4
Comparator Module ................................................4
Limiter Module.........................................................4
Look-up Table Module ............................................4
Scalin
g
Module........................................................4
Threshold Module ...................................................4
Rate Limitin
g
Module ..............................................4
LOGIC MODULES
NOT Module............................................................5
AND Module............................................................5
XOR Module............................................................5
Latch Module...........................................................5
Dela
y
Module..........................................................5
Rotation Module......................................................6
Stopwatch Module...................................................6
Counter Module.......................................................6
CONTROL MODULES
Controller Module....................................................6
Optimiser Module....................................................8
Enthalp
y
Comparator Module .................................9
Pulse Pair Driver Module ........................................10
Pulse Width Modulation Module..............................10
Step Driver Module .................................................10
Li
g
htin
g
Module.......................................................10
Page
MISCELLANEOUS MODULES No.
Clock Module.......................................................... 11
Timeschedule Module............................................. 11
Alarm Module.......................................................... 11
Holida
y
Module....................................................... 11
Lo
gg
in
g
Module ...................................................... 12
S
y
stem Module....................................................... 12
REFERENCE MODULES
Di
g
ital Monitor Module............................................ 12
Di
g
ital Reference Module ....................................... 12
Analo
g
ue Monitor Module....................................... 12
Analo
g
ue Reference Module.................................. 13
Flasher Module....................................................... 13
Di
g
ital One Module ................................................. 13
Di
g
ital Zero Module................................................. 13
Power On Reference Module ................................. 13
All the modules are described in full from pa
g
e 3. This listin
g
includes the module parameters, their default values and ran
g
es.
The modules are linked to
g
ether either b
y
choosin
g
a preset
application or b
y
customisin
g
applications from a computer runnin
g
the Satchnet Bubbleland software. The software emplo
y
s a
g
raphical interface that allows
y
ou to use a mouse to point at the
various modules and link them to
g
ether. An
y
links that are invalid
are re
j
ected b
y
the software. The various settable parameters within
each module have standard default values that ma
y
easil
y
be
modified from the module menus. This method of confi
g
urin
g
the
controller
g
uides the user throu
g
h the confi
g
uration process in a
lo
g
ical manner.
B
y
usin
g
the Bubbleland software the Touch-screen can be
confi
g
ured to displa
y
(
and allow modification to
)
an
y
IAC parameters.
The Touch-screen operates on a user defined menu structure and a
standard
g
raphics librar
y
is available with s
y
mbols such as switches,
fans, pumps, boilers, li
g
hts, humidifiers, doors, thermometers etc.
These
g
raphic s
y
mbols are used to show the state of the inputs and
outputs or an
y
other parameters.

INSTALLATION
LOCATION
Select a position that is reasonabl
y
clean and free from damp and
condensation. A minimum of 50mm clearance is re
q
uired above and
below the controller to allow for wirin
g
. Ambient temperature limits
should be within 0 to 50°C
For mountin
g
instructions see MLI 2.10/2.951, as supplied with the
controller.
MLI 2.10P is supplied with the Touch-screen panel mountin
g
kit.
DO NOT SWITCH ON THE POWER SUPPLY UNTIL
COMMISSIONING PROCEDURES HAVE BEEN CARRIED
OUT. To avoid inadvertent dama
g
e, it is recommended that the
24 Volt suppl
y
fuse is removed from the control panel and refitted
after the site wirin
g
and commissionin
g
have been completed.
COMMISSIONING
See also DS 5.00A for full details of commissionin
g
the Satchnet
s
y
stem.
1. Ensure the IAC controller has no mains Volta
g
es connected to
an
y
of its terminals before an
y
commissionin
g
checks are carried
out.
2. Refer to the s
y
stem dia
g
ram and check that all wirin
g
is correctl
y
connected to the terminal blocks.
3. Ensure IAC terminal 2 is earthed.
4. Check that the terminal sockets are correctl
y
ali
g
ned with the
terminal plu
g
s on the IAC.
5. If an
y
Input or Output wirin
g
is
g
reater than 100 metres lon
g
ensure it is screened. The screen should be earthed onl
y
at the
IAC controller usin
g
one of the earth terminals supplied
(
DO NOT
USE AN ISOLATED GROUND
)
.
6. Ensure that the serial link connections are screened. LAN A and
LAN B screens must be connected to a verified
g
ood earth ONLY
at the computer/MIU. LAN A and LAN B screens should be
connected to the IAC isolated
g
round terminals of each IAC on
the LAN
(
DO NOT USE THE IAC EARTH TERMINALS
)
. See fi
g
s
12 to 15 for details.
7. If a Touch-screen is to be used ensure it is plu
gg
ed in before
appl
y
in
g
power to the IAC.
8. GENERAL:- Do not connect/disconnect an
y
input, output, LAN or
Touch-screen with the power connected as this could dama
g
e the
LAN.
9. Disconnect all outputs to the plant. Replace the 24Vac suppl
y
fuse.
10.Set the correct preset application for the s
y
stem
(
see fi
g
. 5, pa
g
e
19 for confi
g
uration details. If the confi
g
uration is to be loaded
from computer then select preset 0
(
software preset
)
on the bit
switch.
11.If a Touch-screen is fitted, check that the address is set correctl
y
,
see the Touch-screen User Guide for details.
12.Set the correct address for the IAC
(
see fi
g
. 6, pa
g
e 19 for settin
g
details
)
.
13.Remove the 24Vac fuse and re-connect all the outputs to the
plant. Replace the 24Vac suppl
y
fuse.
14.Confi
g
ure the IAC from a computer runnin
g
ver 6.11
(
or later
)
Satchnet Networkin
g
Software. See confi
g
uration details startin
g
on pa
g
e 3.
DS 2.951A 2 - 24 05/98

GENERAL NOTES
1. The IAC uses two t
y
pes of si
g
nal internall
y
. The
y
are as follows:-
Analo
g
ue Values from –10,000 to +10,000 these represent temperature
(
°C, °F
)
, Volta
g
es, Ohms, Lux and control outputs.
Di
g
ital si
g
nals, these si
g
nals are either On or Off.
2. Analo
g
ue inputs or outputs cannot be directl
y
connected to Di
g
ital inputs or outputs. To convert an analo
g
ue value to a di
g
ital si
g
nal use a
threshold module.
3. When handlin
g
Volta
g
e or controller output si
g
nals
y
ou should note that values are in the ran
g
e of 0 to 100 where 0 = Off or 0 Volts and
100 = full On or 10 Volts.
4. °C, °F, Ohms and Lux are all displa
y
ed as actual values e.
g
. 20°C = 20, 68°F = 68, 2000 Ohms = 2000 etc.
5. When usin
g
a controller module for sin
g
le sta
g
e onl
y
the unused sta
g
e should be set as follows:-
Proportional Band = 10,000
Integral Action Time = 0
Derivative Action Time = 0
Ramp Time = 0
6. Maximum of 100 links between modules per IAC base unit.
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
INPUT/OUTPUT MODULES
DIGITAL INPUT MODULE x 8
Current State of Input
(
review onl
y)
This parameter displa
y
s the current input state. On or Off –
Latch Input
This parameter allows the di
g
ital input to be latched so that a
momentar
y
input will switch the module on and a second input will
switch it off.
Yes or No No
Toggle
This parameter switches a latched input into the opposite state. On or Off –
TEMPERATURE (RESISTIVE) INPUT MODULES x 6
Current Measured Value
(
review onl
y)
This parameter displa
y
s the current input value in the selected units. –40 to 150°C –40 to 302°F
250 to 9750 Ω
0 to 10,000 Lux
–
Units Selection
This parameter selects the units that can be used for the input. °C, °F, Ohms or Lux °C
ANALOGUE INPUT MODULES (VOLTAGE) x 6
Current Measured Value as a percenta
g
e of 10 Volts
(
review onl
y)
0 to 100% –
DIGITAL (TRIAC) OUTPUT MODULES x 8
Output State
(
review onl
y)
On or Off –
Override State None, On or Off None
ANALOGUE OUTPUT MODULES x 4
Current Output Value as a percenta
g
e of 10 Volts
(
review onl
y)
0 to 100% –
Override Value
e.
g
. 0 = 0V, 50 = 5V, 100 = 10V 0 to 100% 0%
Enable Override On or Off Off
MATHS MODULES SUBTRACTION, MULTIPLICATION, DIVISION AND
ADDITION MODULES x 8, total number of an
y
combination
These modules allow mathematical operations to be carried out on
values within the controller. Each module can accept two value inputs
and the module will produce a value output. The addition module is
shown, left.
SAMPLE AND HOLD MODULE x 6
This module is used to sample an Analo
g
ue value when the Di
g
ital
input on the module is momentaril
y
switched on. The sample module
will then output the current sample value. The module will keep the
value until the next time the Di
g
ital input is set to on, at which point
another sample is taken.
NOTE:- If the Di
g
ital input is left set at on, the output of the module will
follow the module input.
HYSTERESIS MODULE x 8
This module is used to pass on a chan
g
e in value onl
y
when that
chan
g
e is
g
reater than the value set in the module. When a chan
g
e is
passed throu
g
h the di
g
ital output is switched on briefl
y
. This can be
used to drive the Lo
gg
in
g
module for event based lo
gg
in
g
.
Hysteresis 0 to 10,000 1
ANALOGUE SWITCH MODULE x 6
This module switches an analo
g
ue output between two analo
g
ue
inputs. The switchin
g
is tri
gg
ered b
y
a di
g
ital input state. Possible
applications are sensor selection, override of fan speeds/actuator
position etc.
05/98 3 - 24 DS 2.951A

MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
MATHS MODULES
(
Cont.
)
ANALOGUE AVERAGING MODULE x 6
This module re
q
uires no settin
g
and is used to avera
g
e up to 3 inputs.
The module supplies a maximum, minimum and avera
g
e output value.
COMPARATOR MODULE x 8
The Comparator module is used to compare two analo
g
ue inputs and
g
ive two Di
g
ital outputs if certain conditions are true. If the inputs are
referred to as A and B then the re
q
uired conditions are:-
A ≥B then output 1 is on
A = B ‘+ or −∋ the set tolerance then output 2 is on
Tolerance
A tolerance can be set for the A = B output such that the condition will
tri
gg
er when A = B ‘+ or –’ the tolerance
0 to 10,000 1
LIMITER MODULE x 8
The Limiter module is used to limit the ran
g
e of an Analo
g
ue si
g
nal.
The upper and lower limits can be set either from within the module or
b
y
feedin
g
an analo
g
ue si
g
nal into the two analo
g
ue inputs. The value
of these inputs sets the correspondin
g
upper and lower limits. Di
g
ital
inputs on the module override the module output to the upper or lower
set limit respectivel
y
.
Minimum Value –10,000 to 10,000 0
Maximum Value –10,000 to 10,000 100
LOOK-UP TABLE MODULE x 6
The Look-up Table module is used to scale an
y
analo
g
ue si
g
nal to a
set of units, for instance pressure. The input and correspondin
g
output
value can be entered.
Input Value 1 and Output Value 1
There are eleven of these pairs to allow for non linear sensor
characteristics. If all eleven pairs are not re
q
uired unused pairs are set
to - - -.
NOTE:- The ‘IN’ value must increase in size from input value 1 upto
input value 11 for the look-up table to function correctl
y
.–10,000 to 10,000 IN OUT 00
10 2
20 3
30 4
40 6
50 10
60 16
70 25
80 40
90 63
100 100
SCALING MODULE x 8
The Scalin
g
module is used to re-scale an analo
g
ue si
g
nal based on
minimum and maximum input and output values. From these values
the IAC scales all the points in between linearl
y
.
For example for values of 0 in 0 out and 50 in 100 out a 0 to 5 Volt
input is expanded to a 0 to 10 Volt output.
Si
g
nals can be reversed b
y
usin
g
this module b
y
settin
g
, for example
0, 100 and 100, 0 this would reverse a 0 to 10Vdc input si
g
nal.
NOTE:- The Input Minimum Value must be less than the Input
Maximum Value for the Scalin
g
Module to function correctl
y
.
Input Minimum Value –10,000 to 10,000 0
Output Minimum Value –10,000 to 10,000 0
Input Maximum Value –10,000 to 10,000 100
Output Maximum Value –10,000 to 10,000 100
THRESHOLD MODULE x 8
The Threshold module is used to provide a switched output from an
analo
g
ue input. If both the on and off values are set the same the
module will act as a simple switch. If the off value is set below the on
value then the switch will have a h
y
steresis on it. The Off threshold
must be less than or e
q
ual to the On threshold.
On Threshold –10,000 to 10,000 0
Off Threshold –10,000 to 10,000 0
RATE LIMITING MODULE x 6
This module allows an
y
var
y
in
g
analo
g
ue si
g
nal to be slowed down or
smoothed. The time
(
in seconds
)
and a value are set. The output
value will then follow the input as lon
g
as it chan
g
es at/or slower than
the set value per set time period. If it chan
g
es faster than the values
set then the output will chan
g
e onl
y
at the rate set. For example, the
module ma
y
be set at 5°C per 1 second, if the input chan
g
es b
y
10°C
in 1 second and stabilizes then the output will take two seconds to
e
q
ual the input.
DS 2.951A 4 - 24 05/98

MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
LOGIC MODULES Deviation 1 to 10,000 0
Time 1 to 10,000
Seconds 0 Secs
LOGIC MODULES x 20, total number of an
y
combination of ‘NOT’,
‘AND’ and ‘XOR’ Gates
‘NOT’ Modules
This module re
q
uires no settin
g
and is used to reverse the di
g
ital
inputs i.e. On/Off inputs. This can be an
y
On or Off si
g
nal within the
IAC. For example, if a di
g
ital si
g
nal is Off when it
g
oes into the inverter
it will be transmitted out as On and vice versa. In con
j
unction with the
"AND"
g
ates, and ‘XOR’ Gates these inverters can perform interlock
functions.
‘AND’ Gate Modules
This module is used to take 2 di
g
ital inputs and "AND" them to
g
ether to
g
ive a new di
g
ital output. The
g
ate must have both di
g
ital si
g
nals as
On before it will
g
ive an On output. In con
j
unction with the ‘NOT’
g
ates
and ‘XOR’
g
ates these
g
ates can perform interlock functions.
XOR (EXCLUSIVE OR) Gates
XOR GATE, one input onl
y
must be On to
g
ive an On out. E.
g
. Off, On
= On out
NOTE:- All di
g
ital inputs work as a normal OR Gate within normal
modules when multiple di
g
ital si
g
nals are applied to a sin
g
le di
g
ital
input. That is an
y
number of the inputs are On then the output is On.
E.
g
. Off, On, Off, On, On in = On out
B
y
placin
g
a NOT Gate after an AND Gate the output is inverted thus
providin
g
a NAND
g
ate e
q
uivalent. A ‘NOR’
g
ate is created b
y
connectin
g
two or more inputs into a ‘NOT’
g
ate. B
y
placin
g
a NOT
Gate after an XOR Gate an EQUIV Gate is created
(
if both inputs are
the same then the output is on if not the output is OFF
)
.
LATCH MODULES x 8
The Latch module is used to take a momentar
y
Di
g
ital input and
g
ive a
latched output. The output will now sta
y
on until it is cleared b
y
the
reset input bein
g
set momentaril
y
to on.
This module is used to monitor a pulse t
y
pe si
g
nal and create a lon
g
er
si
g
nal.
DELAY MODULES x 8
The Dela
y
module enables an incomin
g
di
g
ital si
g
nal to be
manipulated. B
y
dela
y
in
g
the on state
y
ou can ensure that the
incomin
g
si
g
nal must be on for a minimum amount of time before it is
reco
g
nised. B
y
dela
y
in
g
the off state of the incomin
g
si
g
nal a
minimum on time can be
g
uaranteed. The output from the module can
then be used as an output to another module.
Period 0 to 10,000 Seconds 0 Secs
Hold On/Off On or Off On
Rising Edge/Falling Edge Risin
g
or Fallin
g
Fallin
g
Re-trigger Yes or No No
Input
Output
Input
Output
Input
Output
Example 1: Start Up Delay:
Period = T
Dela
y
T
y
pe = Hold Off
Ed
g
e = Risin
g
Re-tri
gg
er = No
Example 2: Minimum Run Time:
Period = T
Dela
y
T
y
pe = Hold On
Ed
g
e = Risin
g
Re-tri
gg
er = No
Example 3: Minimum Off Time:
Period = T
Dela
y
T
y
pe = Hold Off
Ed
g
e = Fallin
g
Re-tri
gg
er = No
05/98 5 - 24 DS 2.951A

LOGIC MODULES
(
Cont.
)
ROTATION MODULE x 3
The Rotation module is used to rotate upto six di
g
ital inputs in
se
q
uence. Rotation is tri
gg
ered b
y
a di
g
ital pulse on the rotate input.
Onl
y
those inputs connected are rotated. This is t
y
picall
y
used to
rotate modular plant such as boilers, chillers, pumps etc to even out
the wear on the individual items of plant.
Current Lead
(
review onl
y)
1 to 6 –
Rotate
Allows the module to be manuall
y
rotated. Each selection rotates to
the next item of plant.
On or Off Off
STOPWATCH MODULE x 8
The Stopwatch module has a di
g
ital input that when set to on will run
the stopwatch. The stopwatch will stop when the input is set to off. A
second di
g
ital input on the module is used to reset the module to zero.
A t
y
pical use for this module is plant hours run, boiler/chiller rotation,
switchin
g
the lo
gg
in
g
module for timed lo
g
s etc.
Current Count
This parameter is usuall
y
used to review the current count but it also
allows the user to set an initial count value if re
q
uired.
0 to 10,000 0
Rollover Time
The di
g
ital output will produce a pulse at the set rollover time and the
stopwatch will reset to zero and start countin
g
a
g
ain.
0 to 10,000 3600
Selected Count Units Seconds, Minutes,
Hours or Da
y
sSecs
COUNTER MODULE x 8
The Counter module is used to count pulsed di
g
ital inputs on either the
risin
g
ed
g
e of the momentar
y
di
g
ital input or on both the risin
g
and
fallin
g
ed
g
es. The secondar
y
output will be pulsed each time a count
is made. This includes the fallin
g
ed
g
e if that has been set in the
counter. The secondar
y
di
g
ital input is used to zero the counter at a
time other than when the rollover count is reached.
Current Count
This parameter is usuall
y
used to review the current count but it also
allows the user to set an initial count value if re
q
uired.
0 to 10,000 0
Rollover Count
At a preset rollover count the module will
g
ive a momentar
y
output
from the primar
y
output, reset to zero and start countin
g
a
g
ain.
0 to 10,000 1000
Count Rising and Falling Edges
Sets the module to count both the risin
g
and fallin
g
ed
g
es of the pulsed
input.
Yes or No No
CONTROL MODULES
CONTROLLER MODULE, 2 STAGE x 6
Current Set Value
(
review onl
y)
This parameter displa
y
s the calculated set value. This ma
y
differ from
the main set value if reset is used.
–10,000 to 10,000 –
Integral Action Dumping On
The optimiser set point must be e
q
ual to the controller set value minus
the appropriate deadzone.
Integral Action Dumping Off
The optimiser set point must e
q
ual the controller set value.
Current Input Value
(
review onl
y)
This parameter displa
y
s the current value of the main control sensor. –10,000 to 10,000 –
Schedule Mode
(
review onl
y)
This parameter shows the timeschedule mode the control module is
currentl
y
operatin
g
in.
Occupied 1,
Occupied 2,
Relaxed or Ni
g
ht
–
Override
This parameter is used to override the controller. None, Occupied 1, Relaxed, Occupied 2
or Ni
g
ht
None
Stage 1 Level
This parameter displa
y
s the Sta
g
e 1 output position as a percenta
g
e,
where 0 = Full Off and 100 = Full On. In Temperature Control
schemes Sta
g
e 1 is used for heatin
g
.
0 to 100% –
Stage 2 Level
This parameter displa
y
s the Sta
g
e 2 output position as a percenta
g
e,
where 0 = Full Off and 100 = Full On. In Temperature Control
schemes Sta
g
e 2 is used for coolin
g
.
0 to 100% –
Set Value
This parameter is used to set the desired controller set value. –10,000 to 10,000 19
Set Value Minimum
This value sets the lowest set value the controller is allowed to use. –10,000 to 10,000 –10,000
Set Value Maximum
The value sets the hi
g
hest set value the controller is allowed to use. –10,000 to 10,000 10,000
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
DS 2.951A 6 - 24 05/98

CONTROL MODULES
(
Cont.
)
RPW Setting
(
review onl
y)
This parameter displa
y
s the remote set value from the RPW input to
the controller.
–10,000 to 10,000 –
Reset Setting
(
review onl
y)
This parameter displa
y
s the influence that the reset input is havin
g
on
the set value.
–10,000 to
+10,000/10 Volts –
Reset Ratio
This settin
g
is used to determine the influence that an analo
g
ue input
connected to the reset input of the controller has over the main set
value. B
y
settin
g
the value as a positive number the set value will be
increased as the analo
g
ue input is increased. The opposite is true if it
is set to a ne
g
ative value.
–10,000 to
+10,000/10 Volts 10
Stage 1 Deadzone Occupied
The deadzone is the difference between the set value and the point at
which the sta
g
e starts to control. This parameter is used whilst the
controller is in occupied mode.
0 to 10,000 1
Stage 2 Deadzone Occupied
The deadzone is the difference between the set value and the point at
which the sta
g
e starts to control. This parameter is used whilst the
controller is in occupied mode.
0 to 10,000 1
Stage 1 Deadzone Relaxed
As for the occupied deadzone but onl
y
used whilst the controller is in
relaxed mode.
0 to 10,000 3
Stage 2 Deadzone Relaxed
As for the occupied deadzone but onl
y
used whilst the controller is in
relaxed mode.
0 to 10,000 3
Stage 1 Deadzone Night
As for the occupied deadzone but onl
y
used whilst the controller is in
ni
g
ht mode.
0 to 10,000 6
Stage 2 Deadzone Night
As for the occupied deadzone but onl
y
used whilst the controller is in
ni
g
ht mode.
0 to 10,000 6
Upper Deadzone
(
review onl
y)
This parameter displa
y
s the upper deadzone value that the IAC is
currentl
y
usin
g
.
–10,000 to 10,000 –
Lower Deadzone
(
review onl
y)
This parameter displa
y
s the lower deadzone value that the IAC is
currentl
y
usin
g
.
–10,000 to 10,000 –
Stage 1 Proportional Band
This settin
g
is the ran
g
e over which the Sta
g
e 1 output moves
proportionall
y
across its full stroke.
0 to 10,000 10
Stage 1 Integral Action Time
(
0 = Off
)
This parameter is the set time interval necessar
y
for inte
g
ral action
time to increase the Sta
g
e 1 output b
y
the current proportional level.
Set to 0 for purel
y
proportional control.
0 to 10,000
Seconds 300 Secs
Stage 1 Derivative Action Time
(
0 = Off
)
This is usuall
y
left at zero. It is used where a faster control action is
re
q
uired and reducin
g
the Proportional Band and/or Inte
g
ral time
causes huntin
g
. As a
g
uide, the derivative time must be set at less
than a tenth of the Inte
g
ral Time as a start point.
0 to 10,000
Seconds 0 Secs
Stage 1 Ramp Time
This determines the time in seconds for the output sta
g
e to chan
g
e
from full
y
closed to full
y
open
(g
iven a continuous demand
)
.
0 to 10,000
Seconds 60 Secs
Stage 2 Proportional Band
This settin
g
is the ran
g
e over which the Sta
g
e 2 output moves
proportionall
y
across its full stroke.
0 to 10,000 10
Stage 2 Integral Action Time
(
0 = Off
)
This parameter is the time interval necessar
y
for inte
g
ral action time to
increase the Sta
g
e 2 output b
y
the current proportional band. Set to 0
for purel
y
proportional control.
0 to 10,000
Seconds 300 Secs
Stage 2 Derivative Action Time
(
0 = Off
)
See Sta
g
e 1 Derivative Action Time 0 to 10,000 Seconds 0 Secs
Stage 2 Ramp Time
This determines the time in seconds for the output sta
g
e to chan
g
e
from full
y
closed to full
y
open
(g
iven a continuous demand
)
1 to 10,000
Seconds 60 Secs
Sample Time
(
0 = as fast as possible
)
This is the interval between successive readin
g
s of the measured
values at the connected sensors. A short interval of sa
y
10 seconds
permits rapid response but onl
y
a small amount of corrective action. It
is suited to s
y
stems havin
g
short time constants.
0 to 10,000
Seconds 10 Secs
A lon
g
er interval such as 20 seconds is slower to react but permits a
lar
g
er amount of corrective action. For this reason it is suited to
s
y
stems havin
g
medium len
g
th time constants.
If control action tends to be too slow reduce the settin
g
and if it tends
to hunt increase it. This fine tunin
g
should be done in small steps of
around 10 to 20%.
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
05/98 7 - 24 DS 2.951A

CONTROL MODULES
(
Cont.
)
Integral Action Method
This settin
g
determines the method of control b
y
the IAC. Mode A or B A
Mode "A" controls such that the IAC takes into account the deadzone
and uses the end of the appropriate sta
g
e deadzone as the set value
point.
Mode "B" controls usin
g
the actual set value.
Integral Action Dumping
The IAC allows the use of inte
g
ral action in two different modes. On or Off Off
If the parameter is set to Off then the IAC holds the current control
level when it enters its deadzone. This is done to avoid the IAC
droppin
g
strai
g
ht back out of the deadzone a
g
ain. Therefore, if the
IAC enters its deadzone with Sta
g
e 1 in operation, the IAC will hold the
Sta
g
e 1 at its current position rather than force the sta
g
e to a zero
position. If the controller exits the deadzone back to Sta
g
e 1, the
control action will resume at the previous point. If the controller exits
the deadzone in Sta
g
e 2, then Sta
g
e 1 and its inte
g
ral time would be
forced to zero before Sta
g
e 2 was allowed to run.
The opposite would be true if the controller went into deadzone with
Sta
g
e 2 operatin
g
.
If the parameter is set to On then the IAC zeros the operational sta
g
e
as the controller enters the deadzone. In some s
y
stems this ma
y
cause huntin
g
.
Boost Stage
This parameter selects which sta
g
e is boosted when the controller is in
a boost condition.
1 or 2 1
Boost in Occupied Period 1
This parameter selects whether the controller sta
g
e should be boosted
to 100% when it enters the first occupied period of each da
y
. The
boost will be held until the set value is reached if Inte
g
ral Action
Dumpin
g
is OFF. Controls to deadzone if Inte
g
ral Action dumpin
g
is
ON.
Yes or No No
Boost in Occupied Period 2
As for Boost is Occupied Period 1 but for the second occupied period
of each da
y
.
Yes or No No
Boost
(
review onl
y)
This parameter shows the influence boost is havin
g
on the currentl
y
active sta
g
e. As boost overrides the sta
g
e full
y
on.
On or Off –
OPTIMISER MODULE x 2
The optimiser module is self learnin
g
with optimum on and off,
selectable linear or BRESTART
(
lo
g
arithmic
)
optimisation and
histo
g
ram displa
y
. The optimiser can also be selected for heatin
g
or
coolin
g
plant operation.
The module has its own time schedule to set the occupanc
y
times.
Inputs to the module include space sensor, outside sensor
(
s
)
and
remote settin
g
. The module outputs are boost on and plant on which
would be connected to the controllers boost and occupied override
inputs respectivel
y
.
Main Sensor
(
review onl
y)
Displa
y
s the actual space sensor value. –10,000 to 10,000 –
Actual Setpoint
(
review onl
y)
This displa
y
s the actual setpoint used b
y
the optimiser. –10,000 to 10,000 –
Integral Action Dumping On
The optimiser set point must be e
q
ual to the controller set value minus
the appropriate deadzone.
Integral Action Dumping Off
The optimiser set point must e
q
ual the controller set value.
NOTE:- If the remote set point input is used then it will set this value
and it will override the "Occupanc
y
Set point".
Remote Setpoint
(
review onl
y)
This is the actual value on the setpoint input of the optimiser module
and is usuall
y
set from an RPW.
–10,000 to 10,000 –
Optimum On Influence
(
review onl
y
, optional
)
This parameter displa
y
s the actual amount of time to be added to the
calculated boost time. This value is usuall
y
used to suppl
y
the
optimiser with an outside influence to take account of low
(
usuall
y
below 10°C
)
outside temperatures. This value is supplied to the
optimiser throu
g
h the influence analo
g
ue input. If this is an outside
influence it is derived from a look-up table module that is fed b
y
an
outside temperature sensor. This value is subtracted from the
optimum ON time.
–10,000 to 10,000
mins –
Optimum Off Influence
(
review onl
y
, optional
)
As for Optimum On influence but the value is subtracted from the
calculated optimum off time.
–10,000 to 10,000
mins –
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
DS 2.951A 8 - 24 05/98

CONTROL MODULES
(
Cont.
)
Early Optimum Off
(
review onl
y)
‘- - -’ is normall
y
displa
y
ed unless the optimiser is in an optimum off
period and the space temperature falls below the optimum off set point.
At this point the parameter displa
y
s the number of minutes left until the
end of occupanc
y
time. This same value is also output from the
module as an analo
g
ue si
g
nal.
0 to 10,000 mins - - -
Optimiser Running?
(
review onl
y)
This allows
y
ou to see whether the optimiser has been disabled b
y
the
time lost input of the optimiser module.
Yes or No –
Learning is
(
review onl
y)
This allows
y
ou to see whether the self learnin
g
has been disabled b
y
the optimiser module di
g
ital input or from the "Enable Learnin
g
"
parameter.
On or Off –
Schedule Mode
(
review onl
y)
This code displa
y
s the section of the operatin
g
schedule the optimiser
is currentl
y
in.
Mornin
g
= before occupanc
y
.
Da
y
= durin
g
occupanc
y
.
Ni
g
ht = after occupanc
y
Mornin
g
, Da
y
,
Ni
g
ht –
Optimiser Status
(
review onl
y)
Displa
y
s the current status of the optimiser.
Waitin
g
= the optimiser is waitin
g
to start a boost or run down period.
Boostin
g
= boost is in pro
g
ress.
Terminate = function
(
i.e. boost, run down etc.
)
has been stopped.
Run down = run down is in pro
g
ress.
Waitin
g
,Terminate,
Boostin
g
, Run Down –
Optimiser Time
(
review onl
y)
This displa
y
s the current time as seen b
y
the optimiser. 0000 to 2359 –
Next Change Due
(
review onl
y)
This displa
y
s the calculated time for the next chan
g
e of output for the
optimiser module.
If no calculation has been made because, for instance, the next da
y
is
off then ‘4800 waitin
g
’ is displa
y
ed. 0000 to 2359 and Monda
y
to Sunda
y
–
Schedule
Displa
y
ed in a tabular format with one ON/OFF per da
y
s and a 7 da
y
week. The ON and OFF times must be set in 24 hour format i.e. 3:00
AM is set as 0300. If the time schedule is to be OFF for the da
y
then
the ON and OFF times should be set to 0000
(
Saturda
y
and Sunda
y
default to OFF
)
.
0000 to 2359 Monda
y
to
Frida
y
0800,1700
Saturda
y
to
Sunda
y
0000, 0000
Clear Histogram
This is used to clear the histo
g
ram data if re
q
uired. Yes or No No
Occupancy Setpoint
This is the setpoint to be used b
y
the optimiser. –10,000 to 10,000 19
NOTE:- If the remote setpoint input is used then that will override the
Occupanc
y
Setpoint.
Optimiser Direction
This sets the optimiser to operate a heatin
g
or coolin
g
plant. Heatin
g
or Coolin
g
Heatin
g
Optimiser Algorithm
This selects the t
y
pe of pre-heat used b
y
the optimiser. Lo
g
arithmic
pre-heat is based on the BRE recommended BRESTART curve and
linear is the standard Satchwell t
y
pe.
Linear or
Lo
g
arithmic Linear
Design Pre-Heat
This parameter allows the desi
g
n pre-heat to be set in minutes per
input unit.
0 to 10,000
Mins/unit 20 Mins/unit
Advanced Pre-Heat
This parameter allows the advanced pre-heat to be set in minutes per
input unit.
This value is used in place of DPH if the preceedin
g
da
y(
s
)
were off.
0 to 10,000
Mins/unit 25 Mins/unit
Enable Learning
This parameter is used to turn self learnin
g
on or off. Yes or No Yes
Learning Ratio
This parameter sets the percenta
g
e self learnin
g
ratio. 0 to 100% 10%
Enable Optimum Off
This parameter is used to turn on and off the optimum off function. Yes or No Yes
Design Optimum Off Time
This parameter allows the run down time to be set in minutes per input
unit.
0 to 10,000
Mins/unit 30 Mins/unit
Optimum Off Setpoint
This sets the minimum inside temperature at the end of the occupanc
y
period.
–10,000 to 10,000 19
ENTHALPY COMPARATOR MODULE x 1
The Enthalp
y
Comparator module consists of two pairs of temperature
and humidit
y
inputs. The Enthalp
y
is calculated from each pair of
temperature/humidit
y
inputs. The output is on if the top pair of inputs
have a
g
reater enthalp
y
(
total heat content
)
than the bottom pair.
T
y
picall
y
this module is used to compare the enthalp
y
of the
recirculated air and fresh air and to override the controller to minimum
or maximum fresh air dependin
g
on application.
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
05/98 9 - 24 DS 2.951A

CONTROL MODULES
(
Cont.
)
PULSED PAIR DRIVER MODULE x 4
Stroke Time
This parameter allows the actuator stroke time to be set and is used b
y
the IAC to determine the position of the actuator on the output sta
g
e.
0 to 10,000
Seconds 65 Secs
Run On Time
This parameter sets the maximum actuator run on time. The output
will be turned off if the pulse pair driver has been runnin
g
in one
direction for lon
g
er than the pro
g
rammed Run On Time.
0 to 10,000
Seconds 600 Secs
Action
(
review onl
y)
This parameter displa
y
s the current output state of the sta
g
e. Stopped, Increasin
g
,
Decreasin
g
, at
Minimum or at
Maximum
–
Current Position as a percenta
g
e of stroke
(
review onl
y)
This parameter displa
y
s the approximate position of the actuator as a
percenta
g
e of its full stroke, where 0 = full
y
Closed and 100 = full
y
Open.
0 to 100% –
Current Run Time
(
review onl
y)
This parameter displa
y
s the number of seconds that the actuator has
been runnin
g
in one direction. The number of seconds is reset to zero
when the direction of movement chan
g
es.
0 to 3,600
Seconds –
PULSE WIDTH MODULATION MODULE x 6
Cycle Period
The len
g
th of the c
y
cle period corresponds to the pulse time re
q
uired
for 100% openin
g
of the wax actuator. This parameter allows the c
y
cle
period to be set. The IAC then uses this time to work out the len
g
th of
pulse re
q
uired to position the actuator when it is bein
g
controlled.
1 to 10,000
Seconds 20 Secs
STEP DRIVER MODULE x 4
When drivin
g
the step driver module from a volta
g
e or control module
sta
g
e output then values between 0 and 100 should be set where 0 =
0V or full
y
Off and 100 = 10V or full
y
On.
Step 1 Switch on Point (Bottom Step)
This parameter is used to set the switch on point for the step. 0 to 10,000 10
Step 2 Switch on Point
This parameter is used to set the switch on point for the step. 0 to 10,000 20
Step 3 Switch on Point
This parameter is used to set the switch on point for the step. 0 to 10,000 40
Step 4 Switch on Point
This parameter is used to set the switch on point for the step. 0 to 10,000 60
Step 5 Switch on Point
This parameter is used to set the switch on point for the step. 0 to 10,000 80
Step 6 Switch on Point (Top Step)
This parameter is used to set the switch on point for the step. 0 to 10,000 90
Switching Hysteresis
This allows the h
y
steresis to be set for all the sta
g
es and should
alwa
y
s be set to less than the smallest
g
ap between steps, this should
be done to avoid erratic control.
0 to 100 5
LIGHTING CONTROL MODULE x 1
This module is used to switch the li
g
htin
g
on and off. The primar
y
input is normall
y
connected to the timeschedule On output
(
s
)
. The two
override inputs can be used to override the li
g
htin
g
On or Off. The
di
g
ital output is then used to switch the li
g
hts.
Status
(
review onl
y)
This parameter displa
y
s the actual li
g
htin
g
output state. Off or On –
DIP 1
The li
g
hts can be set up to dip off at a point before the
y
are set to
g
o
off. This parameter allows the point for the dip to occur to be set. Set
to 0 to disable the dip.
0 to 10,000
Seconds 0 Secs
DIP 2
A second dip is allowed as a final warnin
g
that the li
g
htin
g
is about to
be switched off. The point at which this dip occurs is set from this
parameter. Set to 0 to disable the dip.
0 to 10,000
Seconds 0 Secs
DIP Time
This sets the len
g
th of time that the li
g
hts dip off for. 0 to 10,000 Seconds 1 Sec
Computer Override
This parameter is used to override the li
g
htin
g
schedule from the
computer.
NOTE:- The li
g
hts will not dip the
y
will be turned off immediatel
y
the
IAC receives the si
g
nal.
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
DS 2.951A 10 - 24 05/98

MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
MISCELLANEOUS MODULES
CLOCK MODULE x 1
The Clock module is used b
y
the IAC to keep the time. The di
g
ital
input is used to re-s
y
nchronize the clock when the IAC is used in a
standalone mode. The di
g
ital outputs are used to show the clock state
e.
g
. time lost
(
labelled "?"
)
and clock runnin
g
.
NOTES:-
1.Touch-screen
The Touch-screen will update the time on all IACs on its SUB LAN
once per da
y
(
at midni
g
ht
)
. The Touch-screen monitors the IAC clocks
for time lost, on seein
g
this the time is updated on all the IACs.
The Touch-screen will update all the IACs if its own time is updated.
2.Computer Runnin
g
Satchnet
The computer will update the time on LAN sites ever
y
5 minutes.
WAN sites are updated when the
y
are contacted.
Re-synchronization Time
If the IAC is operatin
g
in a standalone mode then it is desirable to
re-s
y
nchronize the clock on a re
g
ular basis. This is achieved from an
external time switch momentar
y
contact and this settin
g
tells the IAC at
what time this will occur.
0000 to 2359 0000
Re-synchronization Day of the Week
This parameter tells the IAC on what da
y
the re-s
y
nchronization
contact will operate. If the clock is set to be re-s
y
nchronized ever
y
da
y
set this parameter to All.
Monda
y
to Sunda
y
or All Monda
y
TIMESCHEDULE MODULES x 4
The Timeschedule module has a sin
g
le di
g
ital input which should be
connected to the clock runnin
g
output of the clock module. The four
di
g
ital outputs represent the first on, first off, second on and second off
times respectivel
y
and each would be connected to the relevant input,
for instance controller overrides.
Displa
y
ed in tabular format with 2 On/Off’s per da
y
and a 7 da
y
week.
The On and Off times must be set in 24 hour format i.e. 3:00 AM is set
as 0300.
If onl
y
one ON/OFF is re
q
uired for a da
y
then the First ON time is set
and also the First OFF. The Second ON and second OFF should be
set to the same time as the First OFF. If the IAC is to be off all da
y
set
both ONs and OFFs to 0000.
0000 to 2359 0800, 1700
1700, 1700
ALARM MODULES x 12
The Alarm module is used to monitor a di
g
ital si
g
nal, when the si
g
nal is
on the alarm module re
g
isters an alarm present and
g
ives a di
g
ital
si
g
nal out. When the alarm is acknowled
g
ed from the computer, the
output is turned off.
NOTE:- The alarm is tri
gg
ered b
y
the input to the module bein
g
on.
For temperature/volta
g
e alarms use a threshold module to
g
ive a
switched output.
Alarm Status
(
review onl
y)
This parameter shows the state of the alarm. No Alarm, Alarm, Accept Alarm or
Alarm Acknowled
g
e
–
Accept Alarm
This parameter allows the alarms to be acknowled
g
ed. Yes or No –
HOLIDAY MODULE x 6
The Holida
y
module allows a holida
y
to be set in advance. The
Holida
y
Enable Di
g
ital input must be on to allow the preset holida
y
to
take place. This input would normall
y
be connected to the clock
runnin
g
output. When a holida
y
condition exists the module output will
be on and could be connected to, for instance, the ni
g
ht or relaxed
override input of one or more control modules.
NOTE:- The holida
y
schedule will onl
y
operate if it is connected and
set before the holida
y
start date.
Current State
(
review onl
y)
Shows the current state of the holida
y
module di
g
ital output. On or Off –
Holiday Enable
Manual override to disable the holida
y
from the computer if re
q
uired Yes or No Yes
Start of Holiday Week Number
This sets the week number that the holida
y
is to start in. 1 to 53 1
Start of Holiday Day
This sets the Da
y
that the holida
y
is to start on. Monda
y
to Sunda
y
Monda
y
End of Holiday Week Number
This sets the week number that the holida
y
will finish in. 1 to 53 1
End of Holiday Day
This sets the Da
y
that the holida
y
will finish on. Monda
y
to Sunda
y
Monda
y
05/98 11 - 24 DS 2.951A

MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
MISCELLANEOUS MODULES
(
Cont.
)
LOGGING MODULE x 3
The Lo
gg
in
g
module will lo
g
50 analo
g
ue values and 50 di
g
ital states.
Each value/state lo
g
will be taken when a second di
g
ital input is
momentaril
y
set to ON. A di
g
ital output is switched ON when the
lo
gg
in
g
module is full. This output can be used to disable the lo
gg
in
g
module.
If the lo
gg
in
g
module is not disabled it will continue to lo
g
and overwrite
the oldest lo
gg
ed information.
Lo
gg
ed data can be viewed via the IAC 600 Touch-screen.
SYSTEM MODULE x 1
(
This module ma
y
be placed on screen as often as re
q
uired
)
This module has no inputs or outputs and is intended to
g
ive
information on s
y
stem settin
g
s and allow them to be chan
g
ed. This
module would normall
y
onl
y
be used when commissionin
g
Preset Application
(
0 = Software Preset
)
This displa
y
s the current preset application number and allows a new
one to be loaded.
0 to 4 –
Detector Speed
This allows the detector sensin
g
speed to be set. The Fast speed
should onl
y
be set when usin
g
simulators for the detector inputs.
NOTE:- This must be set to Normal for normal controller operation. Fast or Normal Normal
Force Reset
This button is used to force the controller to reset. Yes or No No
Reload Defaults
This button is used to force the controller to reload all of its default
values.
NOTE:- This will overwrite an
y
parameters set b
y
the user ori
g
inall
y
.
The controller is also automaticall
y
reset. Yes or No No
Null Outputs
This button is used to send the controller into its Null Output mode. In
this mode all controller outputs are turned off and all module links are
disconnected. On leavin
g
this mode the module links are re-connected
and the outputs resume normal operation. Null Output is the hi
g
hest
priorit
y
override on the controller.
Yes or No No
If the IAC keeps sendin
g
itself into Null Output Mode, reload defaults
should be used to clear it. This will overwrite an
y
parameters set b
y
the user.
Detector Sequence
This settin
g
selects the se
q
uence in which the detectors are read. The
default settin
g
is 0 and this settin
g
g
ives an e
q
ual priorit
y
to all
detectors. Selectin
g
1 will
g
ive priorit
y
to temperature
(
resistive
)
input
1 and 2
g
ives priorit
y
to analo
g
ue
(
Volta
g
e
)
input 1. Se
q
uences 1 or 2
should be used when a fast reactin
g
loop must be controlled.
0 to 2 0
REFERENCE MODULES
DIGITAL MONITOR MODULE x 8
This module displa
y
s the state of an
y
di
g
ital output connected to it.
This would
g
enerall
y
be used for checkin
g
module operation.
Current State
(
review onl
y)
This parameter displa
y
s the current input state of the module. On or Off –
DIGITAL REFERENCE MODULE x 8
This module
g
ives a sin
g
le di
g
ital output that can be turned on or off b
y
clickin
g
on the module. This would
g
enerall
y
be used for checkin
g
module operation.
Current State
This parameter allows the user to chan
g
e the output of the module. On or Off Off
ANALOGUE MONITOR MODULE x 12
This module displa
y
s the current analo
g
ue value of an
y
analo
g
ue
output connected to it. The value can be scaled in the same wa
y
as
with scalin
g
modules however there is no ph
y
sical output
j
ust a value.
This would
g
enerall
y
be used for checkin
g
module operation or
presentin
g
a scaled value.
For instance to displa
y
temperatures to 1 decimal place, set the input
minimum to −40, the output minimum to −400, the input maximum to
150 and the output maximum to 1500. The Value/10 parameter will
now displa
y
temperature to 1 decimal place.
Value
(
review onl
y)
This parameter displa
y
s the analo
g
ue input value AFTER the scalin
g
has been calculated.
–32,000 to 32,000 –
Value/10
This parameter displa
y
s the analo
g
ue input value AFTER the scalin
g
has been carried out. this value is divided b
y
10.
–32,000 to 32,000 0
Input Minimum Value –10,000 to 10,000 0
Output Minimum Value –32,000 to 32,000 0
Input Maximum Value –10,000 to 10,000 100
Output Maximum Value –32,000 to 32,000 100
DS 2.951A 12 - 24 05/98

PERMISSIBLE CONNECTIONS
OUTPUTS INPUTS
= Analogue –10,000 to 10,000
= Digital ON or OFF
Voltage signals 0 = 0V, 50 = 5V, 100 = 10V
Controller output signals 0 = off, 100 = full on
MODULES AND FUNCTIONS
Bubbleland
Symbol Module Range Default
REFERENCE MODULES
(
Cont.
)
ANALOGUE REFERENCE MODULE x 12
This module
g
ives an analo
g
ue value output that can be set b
y
the
user. The output value can be scaled in the same wa
y
as on a scalin
g
module to allow input of values to a number of decimal places or in
different units. This would
g
enerall
y
be used for checkin
g
module
operation.
Reference Value
This parameter displa
y
s and allows the user to set the analo
g
ue output
value BEFORE the scalin
g
has been calculated.
–10,000 to 10,000 –
Input Minimum Value –32,000 to 32,000 0
Output Minimum Value –10,000 to 10,000 0
Input Maximum Value –32,000 to 32,000 100
Output Maximum Value –10,000 to 10,000 100
FLASHER MODULE x 1
(
The module ma
y
be placed on screen as often as re
q
uired
)
The Flasher module
g
ives a pulsed di
g
ital output the rate of which can
be set b
y
the user. As the rate is arbitrar
y
and will var
y
with the
controller workload, it should be used for non critical applications onl
y
.
Flash Rate
The flash rate is set in arbitrar
y
units 0 bein
g
the fastest and 100 the
slowest. The on and off times are of similar len
g
th.
0 to 100 5
DIGITAL ONE MODULE x 1
(
The module ma
y
be placed on screen as often as re
q
uired
)
This module
g
ives a di
g
ital output that is alwa
y
s ON. This would
g
enerall
y
be used for checkin
g
module operation.
DIGITAL ZERO MODULE x 1
(
The module ma
y
be placed on screen as often as re
q
uired
)
This module
g
ives a di
g
ital output that is alwa
y
s OFF. This would
g
enerall
y
be used for checkin
g
module operation.
POWER ON REFERENCE MODULE x 1
(
The module ma
y
be placed on screen as often as re
q
uired
)
This module
g
ives a sin
g
le pulsed on di
g
ital output each time the
controller power is switched on or the controller is reset. This can be
used to enable a se
q
uence of events to occur each time power to the
controller is reinstated. These events could, for instance, be start up
dela
y
s etc. The output can be latched if re
q
uired.
05/98 13 - 24 DS 2.951A

Outside Air
Temperature °C
Water
Temperature °C
OUTSIDE
TEMP. SUPPLY SET VALUE
1: IN 0
2: IN 5
3: IN 20
OUT 80
OUT 65
OUT 20
Settin
g
s 4 to 11 set to "---"
(
unused
)
.
EXAMPLE COMPENSATION SET-UP
To confi
g
ure a controller module to operate a compensation scheme
connect the modules as follows:
Water/Air Suppl
y
sensor connected to controller module main sensor
input.
Outside sensor connected to RPW input via a look-up table module.
Wind sensor connected to the 0 to 10 Volt reset input
(
optional
)
.
Other inputs and outputs would be connected as for normal control
schemes.
Example Look-Up Table settings for the graph below:-
APPLICATIONS
The IAC has a number of preset applications built in. The preset applications are selected from the 8 wa
y
bit switch on the IAC.
It is important to note that any application ma
y
be customised b
y
usin
g
the computer and it will be stored in the IAC even in the event of a
power failure. The supplied applications are merel
y
a startin
g
point for a s
y
stem but if the supplied application suits
y
our s
y
stem it ma
y
be
used as it stands.
Hardware Preset Applications
There are currentl
y
4 preset applications that can be selected from the 8 wa
y
bit switch and the
y
are as follows:-
Preset 0 – Fully configurable
No links are made between modules. This preset should be chosen if
y
ou wish to confi
g
ure the IAC completel
y
.
APPLICATION NOTES
1. If an application is to be used on an IAC via a computer select software preset 0. Use the confi
g
uration librar
y
in the Satchnet Computer
Software to load the re
q
uired preset application from disk. Then send the confi
g
uration to the controller.
2. Most applications include one or more timeschedules. If the IAC is connected to a computer then the IAC will operate on its own
timeschedule. If it is not then the IAC will default to its occupied state.
3. Most applications can be used as sin
g
le sta
g
e if re
q
uired b
y
settin
g
the unused sta
g
e as follows:-
Proportional Band = 10,000
Inte
g
ral Action Time = 0
Derivative Action Time = 0
Ramp Time = 0
4. When outputs are duplicated either the 24Vac or 0 to 10Vdc output can be used as re
q
uired as the
y
operate in parallel.
DS 2.951A 14 - 24 05/98

Fi
g
.1
PRESET 1 – Boiler Compensation and separate HWS System
Pumps failed signal
Time re-synchronization
Clear pumps failed
Pump 1
Pump 2
Backend
Valve
High Limit
Thermostat
(hand reset) and
burner controls.
Use of the backend valve is
optional. If the backend valve is
used it should be mechanically or
electrically restricted to stop it
fully closing.
*
Flow
Pumps Failed
Pump 2
Pump 1
Boiler
HWS
Valve
HWS
Valve
Supply
Backend Valve
HWS Sensor
Outside Sensor
Flow Sensor
Backend
Valve
Pump
Clear Pumps Failed
Time
re-synchronization
Connect to any IAC
isolated ground
terminal
Connect to any IAC 600
terminal
Note:–
The actual terminal block is a
double block running across the
bottom of the IAC. The top (double
height) block contains terminals 1
to 33 and the bottom (single height)
contains 34 to 41 and all of the
Ground and isolated Ground
terminals. Terminal numbers run
from left to right.
6
Ensure Terminal 2 is earthed.
66
The 24Vac Supply must be
fused with a 2A fuse.
Terminal 5 is not used.
If an earth busbar is to be used
then it must be connected to a
single Ground terminal on the IAC
by a single cable which should be
as short as possible and no more
than 150mm long. Earth wire
minimum 30/0.25 (1.5mm2)
Stranded Cable.
Any IAC 600
terminal
TIME SCHEDULES
08:00 to 17:00
Connected to the compensator and HWS loops.
The time re-s
y
nchronization input will re-s
y
nchronize the IAC time to
midni
g
ht Monda
y
.
COMPENSATOR
Schedule OUTSIDE SUPPLY
080
10 50
20 20
The outside temperature value is fed into a look-up table. The result
is passed to the controller RPW input and is used to set the controller
set value.
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
HWS
The HWS valve will open at 38°C and close at 40°C. Note this is an
on/off action and is not modulatin
g
.
BOILER/BACKEND VALVE
The boiler and backend valve are both enabled when the control
demand si
g
nal exceeds 10% and disabled when it drops below 5%.
The boiler output has a hold off time of 15 Seconds and the backend
valve output has hold off time of 5 Seconds.
The backend valve should be mechanicall
y
or electricall
y
limited so
that it remains open at a minimum of 10% to enable heat dissipation
from within the boiler.
PUMPS
Two pump outputs are supplied, Pump 1 normall
y
runs when the
controller is re
q
uestin
g
heat. In the event of pump 1 failin
g
to run, a
differential pressure switch si
g
nals the IAC which enables pump 2.
In the event of pump 2 failin
g
the "pumps failed" output is enabled. A
"clear pumps failed" input is supplied to enable the failed pumps to
be used once the
y
have been repaired or reset.
VALVE OPTIONS
Both the HWS and backend valve actuators ma
y
be 0 to 10Vdc or
24Vac driven, it should be noted however that valve operation in all
cases is purel
y
on/off and not modulatin
g
.
05/98 15 - 24 DS 2.951A

Fi
g
.2
PRESET 2 – 2 Boiler Sequence Control (compensated) with a separate HWS System
Time re-synchronization
Pumps failed signal
Clear pumps failed
Pump 1
Pump 2
Boiler
1
High Limit Thermostat
(hand reset) and burner
controls.
*
Flow
Boiler
2
Pumps Failed
Pump 2
Pump 1
Boiler 2
HWS
Valve
Backend Valve 2
Supply
Backend Valve 1
HWS Sensor
Outside Sensor
Flow Sensor
Pump
Clear Pumps Failed
Connect to any IAC
isolated ground
terminal
Connect to any IAC 600
terminal
Note:–
The actual terminal block is a
double block running across
the bottom of the IAC. The
top (double height) block
contains terminals 1 to 33 and
the bottom (single height)
contains 34 to 41 and all of
the Ground and isolated
Ground terminals. Terminal
numbers run from left to right.
6
Ensure Terminal 2 is
earthed.
66
The 24Vac Supply must
be fused with a 2A fuse.
Terminal 5 is not used.
If an earth busbar is to be
used then it must be
connected to a single Ground
terminal on the IAC by a
single cable which should be
as short as possible and no
more than 150mm long. Earth
wire minimum 30/0.25
(1.5mm2) Stranded Cable.
Any IAC 600
terminal
HWS
Valve
Boiler 1
Time re-synchronization
TIME SCHEDULES
08:00 to 17:00
Connected to the compensator and HWS loops.
The time re-s
y
nchronization input will re-s
y
nchronize the IAC time to
midni
g
ht Monda
y
.
COMPENSATOR
Schedule OUTSIDE SUPPLY
080
10 50
20 20
The outside temperature value is fed into a look-up table. The result
is passed to the controller RPW input and is used to set the controller
set value.
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
BOILER/BACKEND VALVE
The lead boiler backend valve is alwa
y
s held open with the other one
bein
g
enabled on demand. The lead boiler rotates ever
y
100 hours.
The lead boiler is enabled when the control demand si
g
nal exceeds
33% with the second boiler and backend valve bein
g
enabled a 66%.
There is a 5% h
y
steresis on both steps. The call for heat si
g
nal from
the HWS is linked to the lead boiler to ensure that the boiler fires if
HWS is re
q
uired under low load conditions.
PUMPS
Two pump outputs are supplied, Pump 1 normall
y
runs when the
controller is re
q
uestin
g
heat. In the event of pump 1 failin
g
to run a
differential pressure switch si
g
nals the IAC which enables pump 2.
In the event of pump 2 failin
g
the "pumps failed" outputs is enabled.
A "clear pumps failed" input is supplied to enable the failed pumps to
be used once the
y
have been repaired or reset.
VALVE OPTIONS
Both the HWS and backend valve actuators ma
y
be 0 to 10Vdc or
24Vac driven, it should be noted however that valve operation in all
cases is purel
y
on/off and not modulatin
g
.
DS 2.951A 16 - 24 05/98

Fi
g
.3
PRESET 3 – 3 Boiler Sequence Control (compensated) with a separate HWS System
Time re-synchronization
Pumps failed signal
Clear pumps failed
Pump 1
Pump 2
Boiler
1
High Limit Thermostat
(manual reset) and
burner controls.
*
Flow
Boiler
2Boiler 3
Pumps Failed
Pump 2
Pump 1
Boiler 2
HWS
Valve
Backend
Valve 1
Supply
Backend Valve 3
HWS Sensor
Outside Sensor
Flow Sensor
Pump
Clear Pumps Failed
Connect to any IAC
isolated ground
terminal
Connect to any IAC 600
terminal
Note:–
The actual terminal block is a
double block running across
the bottom of the IAC. The
top (double height) block
contains terminals 1 to 33 and
the bottom (single height)
contains 34 to 41 and all of
the Ground and isolated
Ground terminals. Terminal
numbers run from left to right.
6
Ensure Terminal 2 is
earthed.
66
The 24Vac Supply must
be fused with a 2A fuse.
Terminal 5 is not used.
If an earth busbar is to be
used then it must be
connected to a single Ground
terminal on the IAC by a
single cable which should be
as short as possible and no
more than 150mm long. Earth
wire minimum 30/0.25
(1.5mm2) Stranded Cable.
Connect to any
IAC 600
terminal
HWS
Valve
Boiler 1
Time re-synchronization
Backend Valve 2
Boiler 3
TIME SCHEDULES
08:00 to 17:00
Connected to the compensator and HWS loops.
The time re-s
y
nchronization input will re-s
y
nchronize the IAC time to
midni
g
ht Monda
y
.
COMPENSATOR
Schedule OUTSIDE SUPPLY
080
10 50
20 20
The outside temperature value is fed into a look-up table. The result
is passed to the controller RPW input and is used to set the controller
set value.
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
BOILER/BACKEND VALVE
The lead boiler backend valve is alwa
y
s held open, with the others
bein
g
enabled on demand. The lead boiler rotates ever
y
100 hours.
The lead boiler is enabled when the control demand si
g
nal exceeds
25% with the second boiler and backend valve bein
g
enabled at 50%
and the third at 75%. There is a 5% h
y
steresis on all three steps.
The call for heat si
g
nal from the HWS is linked to the lead boiler to
ensure that the boiler fires if HWS is re
q
uired under low load
conditions.
PUMPS
Two pump outputs are supplied, Pump 1 normall
y
runs when the
controller is re
q
uestin
g
heat. In the event of pump 1 failin
g
to run, a
differential pressure switch si
g
nals the IAC which enables pump 2.
In the event of pump 2 failin
g
the "pumps failed" output is enabled. A
"clear pumps failed" input is supplied to enable the failed pumps to
be used once the
y
have been repaired or reset.
VALVE OPTIONS
Both the HWS and backend valve actuators ma
y
be 0 to 10Vdc or
24Vac driven, it should be noted however that valve operation in all
cases is purel
y
on/off and not modulatin
g
.
05/98 17 - 24 DS 2.951A

Fi
g
.4
Note:–
The actual terminal block is
a double block running
across the bottom of the
IAC. The top (double
height) block contains
terminals 1 to 33 and the
bottom (single height)
contains 34 to 41 and all of
the Ground and isolated
Ground terminals.
Terminal numbers run
from left to right.
6
Ensure Terminal 2 is
earthed.
66
The 24Vac Supply must
be fused with a 2A fuse.
Terminal 5 is not used.
If an earth busbar is to be
used then it must be
connected to a single
Ground terminal on the IAC
by a single cable which
should be as short as
possible and no more than
150mm long. Earth wire
minimum 30/0.25 (1.5mm2)
Stranded Cable.
PRESET 4 – Full air-conditioning including variable Fan Speed Control
Exhaust
Air
Outside
Air
Time re-synchronization
Fan Fail Clear
Single Step Humidifier
Pre-heater
Common Cooler
Battery
Supply
Humidity
Heater
Battery
Extract/
Recirc.
Damper
Supply
Supply Fan
Speed
Supply
Velocity
Sensor
Extract Velocity
Sensor
Pre-heater Temperature Sensor
Supply
Extract
Connect to any IAC 600
isolated ground
terminal
Connect to any IAC 600
terminal
Connect to any
IAC 600
terminal
Supply
Damper
Supply Temperature Sensor
Filter Dirty
Humidifier
Extract Fan
Speed
Connect to any IAC 600
terminal
Connect to any
IAC 600
terminal
Connect to any IAC 600
terminal
Smoke
Fan Fail Clear
Time re-synchronization
TIME SCHEDULES
08:00 to 17:00
Connected to the temperature and humidit
y
loops.
The time re-s
y
nchronization input will re-s
y
nchronize the IAC time to
midni
g
ht Monda
y
.
TEMPERATURE LOOP
Set value 50°C
Sta
g
e 1 and 2
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
The suppl
y
and extract fans are speed controlled from the velocit
y
sensors, their set values bein
g
determined b
y
the heatin
g
and
coolin
g
control demand si
g
nals.
The main temperature loop operates a heater batter
y
and common
cooler batter
y
. The dampers are modulated from the heatin
g
and
coolin
g
control demand si
g
nals and have a minimum fresh air settin
g
of 30%. In the event of the smoke switch activatin
g
the
recirculation/extract dampers will
g
o to 100%, the suppl
y
damper to
0%, the suppl
y
fan will
g
o to 0% and the extract fan to 75% of the full
fan speed.
The temperature loop is overridden off if the fans stop.
HUMIDITY LOOP
Set value 19% RH
Sta
g
e 1 and 2
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
The humidit
y
loop operates a humidifier and common cooler batter
y
.
The humidifier can be a sin
g
le switched output operatin
g
at 0% of the
control si
g
nal or a modulatin
g
valve and actuator.
The humidit
y
loop is overridden off if the fans stop.
PREHEATER LOOP
The preheater output is a simple on/off tri
gg
ered at a set temperature.
On at 1°C
Off at 1°C
SMOKE OVERRIDE
Under smoke conditions the followin
g
actions will betaken:
Suppl
y
Damper 0%
Recirculation/Extract Damper 100%
Suppl
y
Fan Off
Extract Fan 75%
FAN SPEED LOOPS
Sta
g
e 1 and 2
Proportional Band 10
Inte
g
ral Action 300
Derivative Action 0
Ramp Time 60
Sample Time 10
Look-up Table IN OUT
00
10 2
20 3
30 4
40 6
50 10
60 16
70 25
80 40
90 63
100 100
There are two fan speed control loops, one for the suppl
y
and one for
the extract fan. The set values for the fan speed loops are derived
from the temperature loop heatin
g
and coolin
g
control si
g
nals.
If the fan fails the temperature and humidit
y
controllers are
overridden off. A di
g
ital input is supplied to clear the fan failure and
remove the controller override.
DS 2.951A 18 - 24 05/98

Set Application
Number
Fi
g
.5
Set IAC
Address
Fi
g
.6
REMOTE OPERATION AND INTERROGATION
The IAC is connected, as part of a network, to a remote computer via
the Serial Link, all of the settin
g
and interro
g
ation functions are
carried out at the computer terminal.
Each IAC will be identified b
y
a uni
q
ue Address Code which is set up
via switch SW1 located to the ri
g
ht of the upper terminal block. This
allows the computer to select the desired IAC on the network. Up to
a maximum of 32 IAC Controllers
(
or similar compatible devices
)
ma
y
be connected to a LAN
(
more if a separate MIU or IAC Touch-screen
is used
)
.
TOUCH-SCREEN SUB LAN ADDRESS
If the IAC is on a Touch-screen Sub LAN then the address which the
computer uses is as follows:-
(
(
Touch-screen address – 64
)
x 100
)
+ IAC set address
e.
g
. Touch-screen address = 68
IAC address = 3
Computer address for the IAC =
(
(
68 – 64
)
x 100
)
+3 = 403
In this wa
y
it is possible for lar
g
e sites to have a uni
q
ue address for
ever
y
network controller.
SETTING THE TOUCH-SCREEN ADDRESS
To set the Touch-screen address and Baud rate see the
Touch-screen User Guide.
SETTING THE ADDRESS, BAUD RATE AND
APPLICATION OF THE IAC 600 BASE UNIT
Instructions 1 to 4 will COLD START
y
our IAC and clear out the
memor
y
.
1. Ensure all IAC outputs are disconnected from the plant.
2. Set bit switch 1 "ON". Set all other bit switches to "OFF" - see fi
g
.
5.
3. Set bit switch 8 to "ON" and then back to "OFF", this will load
preset 1.
4. Set all bit switches to "OFF". Set bit switch 8 to "ON" and then
back to "OFF", this will load preset 0.
5. If
y
ou are usin
g
preset 0
y
ou should now set the controller
address. If
y
ou are usin
g
a hardware preset application set the
application number on bit switches 1 to 6 and ensure that bit
switch 7 is set to "OFF".
6. If the IAC is not to be connected to a computer then it is not
necessar
y
to set an address for it.
7. Once the Application Number is set it must be entered into the
IAC b
y
‘cold startin
g
’ the controller. This is achieved b
y
settin
g
bit
switch 8 to "ON" and then settin
g
bit switch 8 back to "OFF".
SW1
SWITCH
(Increment No.)
POSITION
Off/
Open/0 On/ Closed/1
1
2
3
4
5
6
0
0
0
0
0
0
1
2
4
8
16
32
7
8
Set Appli-
cation
Run
Set
Address
Cold Start
Example:
Switch settin
g
s as shown in Fi
g
. 5.
Switch Represents
11
20
34
40
50
60
TOTAL = 5
7
8
Application Number
Run
Set Application
On/Closed/I
Off/Open/0
OPEN
Switch
SW1
SWITCH
(Increment No.)
POSITION
Off/
Open/0 On/ Closed/1
1
2
3
4
5
6
0
0
0
0
0
0
1
2
4
8
16
32
7
8
Set Appli-
cation
Run
Set
Address
Cold Start
Switch Represents
11
20
34
40
50
6 32
TOTAL = 37
7
8
Address
Run
Set Address
On/Closed/I
Off/Open/0
OPEN
Switch
8. Set the controller address on bit switches 1 to 6 and set bit switch
7 to "ON". See fi
g
.6.
9. Once the address has been set it must be entered into the IAC b
y
‘cold startin
g
’ the controller. This is achieved b
y
settin
g
bit switch
8 to "ON" and then settin
g
bit switch 8 back to "OFF".
Example:
Switch settin
g
s as shown in Fi
g
. 6.
10.The IAC application and address has now been set up, the Baud
rate is automaticall
y
set to 1200 Baud
(
this is done whenever the
controller is cold started
)
.
Notes:
1. Do not set more than one network device to the same address.
2. If a sub-LAN is used then addresses 1 to 31 can NOT be used on
the main LAN.
3. Protocol and wirin
g
information for OEM communications
pro
g
rammes are available from Marketin
g
Department, Slou
g
h
Office.
4. The IAC operates at 1200 Baud.
05/98 19 - 24 DS 2.951A

TEMPERATURE (RESISTIVE) INPUT USED AS A
DIGITAL INPUT ANALOGUE INPUT USED AS A DIGITAL INPUT
Fi
g
.8 Fi
g
.9
REMOTE SETTING TEMPERATURE SENSING AND REMOTE SET
VALUE FROM COMMON ROOM SENSOR
Fi
g
.10
Fi
g
.11
Example shown for inputs 1 and 2 and Analogue Output 1
other Temperature (resistive) inputs and Analogue
Outputs may be substituted if required.
*
CONNECTION DIAGRAMS
(
Refer to Wirin
g
Precautions on Pa
g
e 22
)
BASIC WIRING DIAGRAM FOR IAC BASE UNIT
Four 0 to 10Vdc
Outputs 0V reference for
Actuators is from any IAC
Ground Terminal
Supply
Eight Digital Inputs
Pulse Counting,
Alarms, Overrides
etc.
Output
Eight Digital (Triac)
0V Outputs
Lights, Fans, Actuators
(2 outputs for each
Actuator) and sequencing.
Connect Actuator or
Contactor common to a
24Vac supply.
DDH, DRH, DOW
Six 0 to 10Vdc
inputs
DRT, DDT, DWT, DST,
DOT, DOS, RPW
Six Resistance Inputs
Fi
g
.7
Connect to any IAC
Isolated Ground Terminal
Connect to any IAC
Ground Terminal
Connect to any
IAC Ground
Terminal
Note:-
The actual terminal block is a
double block running across the
bottom of the IAC. The top (double
height) block contains terminals 1
to 33 and the bottom (single
height) contains 34 to 41 and all of
the Ground and Isolated Ground
terminals. Terminal numbers run
from left to right.
6
Ensure Terminal 2 is earthed.
66
The 24Vac Supply must have a
2A fuse. The transformer must
conform to EN 60742 - DS 25.00/
25.001.
* LAN A and LAN B should be
screened with the screen earthed
only on a verified good earth at the
computer or MIU. LAN A and B
screens should be connected to
the isolated Ground Terminals
of each of the IACs on the LAN.
See DS 2.10A/2.951A.
Terminal 5 is not used.
If an earth busbar is to be used
then it must be connected to a
single Ground Terminal on the IAC
by a single cable which should be
as short as possible and no more
than 150mm long. Earth wire
minimum 30/0.25 (1.5mm2)
Stranded Cable.
Digital
Input
OPEN
CLOSED
2k2*Ω
±10%
4k7*Ω
±10%
A threshold module should be set as below to create the digital signal.
* Resistances correct for the switching values shown below.
< 19°C contact open
≥19°C contact closed
A threshold module should be set for the values shown below
(note 5V = 50) to create the digital signal.
* Resistances correct for the default switching values of the IAC.
< 5Vdc contact open
≥5Vdc contact closed
RPW 4425 (5 to 50°C)
Remote Set Value
LED Supply
Common
Room Temperature
DRT 3652 only
OPEN
CLOSED
180*kΩ
±10%
Digital
Input
DS 2.951A 20 - 24 05/98