APAR AR247 series User manual

APAR - BIURO HANDLOWE
05-090 Raszyn, ul Gałczyńskiego 6
Tel. [phone]
E-mail: [e-mail]
Internet: www.apar.pl
OPERATING INSTRUCTIONS
AR247
HUMIDITY AND TEMPERATURE
CONTROLLER
Version 3.0.1
2016.12.01

2
Thank you for choosing our product.
This manual will help you use your controller correctly, safely and to its full potential.
Read this manual carefully before installing and putting your controller to use.
In case of additional questions, please contact the technical advisor.
CO TE TS
1. SAFETY PRI CIPLES..................................................................................................................................... 3
2. I STALLATIO GUIDELI ES....................................................................................................................... 3
3. GE ERAL CHARACTERISTICS OF THE CO TROLLER ............................................................................. 3
4. CO TE TS OF THE SET ............................................................................................................................... 4
5. TECH ICAL DATA......................................................................................................................................... 4
6. DIME SIO S OF THE DEVICE A D I STALLATIO DATA .................................................................... 5
7. DESCRIPTIO OF TERMI AL STRIPS A D ELECTRICAL CO ECTIO S ............................................ 6
8. IMPORTA T COMME TS PERTAI I G TO OPERATIO – using the suppression systems ............ 7
9. FU CTIO S OF BUTTO S A D LED I DICATORS ................................................................................. 7
9.1. FU CTIO BUTTO A D BI ARY I PUT ...................................................................................... 8
10. SETTI G OF THE CO FIGURATIO PARAMETERS .............................................................................. 9
11. QUICK ACCESS ME U ............................................................................................................................. 13
12. OUTPUT OPERATIO CO FIGURATIO ............................................................................................. 13
12.1. CHA GI G THE PRESET OUTPUT VALUES ................................................................................. 13
12.2. TYPES OF OUTPUT CHARACTERISTICS ....................................................................................... 13
12.3. A ALOG OUTPUT ........................................................................................................................... 14
12.4. PID REGULATIO ............................................................................................................................ 15
12.5. AUTOMATIC PID PARAMETER SELECTIO ................................................................................. 15
12.6. PID PARAMETER CORRECTIO .................................................................................................... 17
12.7. MA UAL A D REMOTE CO TROL FU CTIO ......................................................................... 17
13. MESSAGE A D ERROR SIG ALI G ...................................................................................................... 17
14. CO ECTI G THE CO TROLLER TO A COMPUTER A D AVAILABLE SOFTWARE....................... 18
15. RS485 COMMU ICATIO I TERFACE (acc. to EIA RS-485) ............................................................. 18
16. MODBUS–RTU SERIAL TRA SMISSIO PROTOCOL (SLAVE) .......................................................... 19
17. OTES ........................................................................................................................................................ 21
Please pay parti ular attention to fragments marked with this sign.
The manufa turer reserves its rights to modify the design and software of the devi e without deteriorating its te hni al parameters.
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3
1.
SAFETY PRINCIPLES
 before you start to use the devi e, be ome familiar with the present instru tions;
 in order to avoid ele tro ution or damage to the devi e, its me hani al and ele tri al installation must be
performed by qualified staff;
 before swit hing on the power supply, make sure that all ables and wires are properly onne ted;
 before making any modifi ations to the wire and able onne tions, swit h off the devi e's power supply;
 ensure proper operating onditions ompliant with the te hni al spe ifi ation of the devi e ( hapter 5, power
supply voltage, humidity, temperature).
2. INSTALLATION GUIDELINES
The devi e is designed so as to ensure an appropriate level of immunity to most interferen es that may o ur in
industrial environments. In environments of unknown level of interferen es, it is re ommended to implement the
following measures so as to prevent potential interferen e with the operation of the devi e:
a) do not supply the devi e from the same lines as high-power equipment without using appropriate power line
filters;
b) use able shields on power supply ables, sensor ables, and signal ables, whereby the earthing of the shield
should be single-point and lo ated as lose to the devi e as possible;
c) avoid running instrument (signal) ables in the dire t vi inity of and parallel to power distribution and power
supply ables;
d) it is re ommended to use twisted pair signal ables;
e) avoid proximity of remotely ontrolled devi es, ele tromagneti meters, high power loads, loads with phase or
group power ontrol, and other devi es that ause high impulse disturban es;
f) ground or zero metal rails on whi h rail-mounted devi es are installed.
Make sure to remove the prote tive film from the LED display before the first use of the devi e.
3. GENERAL CHARACTERISTICS OF THE CONTROLLER
 the devi e is intended for ontrol and monitoring of humidity and temperature in monitored premises;
 a high lass digital relative humidity and temperature sensor with a prote tive filter (ABS material as
a standard, slot width 1 mm);
 a probe integrated with the en losure, external on a wire or a stainless steel pipe;
 temperature ompensation of relative humidity measurement;
 a programmable digital filter that smoothens out and stabilizes the measurements;
 3 independent ON/Off type outputs, 2- and 3-way adjustment:
- output 1 (main): ON-OFF with hysteresis, PID, AUTOTUNING PID
- output 2, 3 (auxiliary/alarm): ON-OFF with hysteresis
- operating parameters: heating/humidifi ation, ooling/drying, relative alarms;
 0/4-20 mA (standard) or 0/2-10 V (option) analog outputs, ontinuous-adjustment, retransmission;
 possibility to onvert sele ted values to the standard of the analog output in the retransmission mode;
 al ulation of dew/frost temperature (°C) and absolute humidity (g/m
3
) for the pressure of 1 atmosphere
(1013 hPa);
 possibility to sele t a value to ontrol the operation of ea h output (any measured or al ulated value)
 programmable BIN digital input or F fun tional button to hange the operating mode of the ontroller:
start/stop of ontrol, manual mode for outputs, step hange of the set value (day/night), keyboard lo k,
view of values measured by the sensor (when al ulated values are displayed);
 advan ed PID parameter sele tion fun tion with fuzzy logi elements;
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 manual mode (open ontrol loop) available for binary outputs and the analog output, whi h makes it possible
to set the value of the output signal in the range of 0-100%; possibility of self-a tivation in the event of sensor
failure;
 a two-line LED digital readout with brightness adjustment: UPPER display - humidity (%RH or g/m
3
), LOWER
display - temperature (of the sensor or the dew/frost point, °C ) or the value set for output 1
 RS485 serial interfa e (galvani ally isolated, MODBUS-RTU proto ol, SLAVE);
 programmable values to be displayed (measured or al ulated values), adjustment, alarms, ommuni ation,
a ess, alibration options and other onfiguration parameters;
 a ess to onfiguration parameters prote ted with a user password or not prote ted with a password
 parameter onfiguration methods:
- from the film keypad lo ated on the front panel of the devi e;
- through the RS485 or the AR956 (AR955) programmer and the ARSOFT-CFG WZ1 software
(Windows Vista/7/8/10) or a user's appli ation, ommuni ation proto ol MODBUS-RTU;
 software and the AR956 (or AR955) programmer that enables viewing the measured value and qui k
onfiguration of single or ready sets of parameters that were saved earlier on the omputer for future use,
e.g. in other ontrollers of the same type ( opying of onfiguration);
 prote tion rating IP65 provided by the industrial en losure whi h improves reliability of operation thanks
to high resistan e to penetration of water and dusts and surfa e ondensation of steam inside of the devi e;
 options (to be sele ted at the time of ordering): type of measuring probe, 24 V AC/DC power supply,
SSR ontrol outputs, 0/2-10 V analog output, and RS485 interfa e;
 high a ura y, long-term stability, and immunity to interferen es;
 available a essories:
- AR956 or AR955 programmer;
- RS485/USB onverter.
- a filter with a metal mesh that improves prote tion of the sensor against dust, mesh size 20-25 μm
- measurement probes: AR281, AR282 (on a wire), AR283 (box type), AR284/L150/L250 (steel tube)
NOTE:
Before yo start working with the controller, make s re to become familiar with this operating instr ction
and perform proper electrical and mechanical installation, as well as config ration of the parameters.
4. CONTENTS OF THE SET
 ontroller
 operating instru tions;
 a warranty ard.
5. TECHNICAL DATA
Meas rement range for the probe
0÷100 %RH,
-
30÷80 °C,
do not po r water on the meas ring probe
Sensor cover (ABS material,
s
tainless steel mesh
)
mesh width: 0.15 mm, width of slots overs ABS: 1mm
diameter of ABS over: 15mm, length of ABS over: 40mm
Meas rement acc racy
(same as
for the SHT31 sensor made by
Sensirion)
-
humidity
typi ally ± 2% RH over the measuring range tra
nsmitter
-
temperature
typi ally
±0,3 °C
over the measuring range transmitter
Additional errors
-
hysteresis
±0,8 %RH
for
temperature 25 °C
-
long
-
term stability
<0.25 %RH/year
(1)
Meas rement period
and filtration
1
s, delay of programmable digital filter: 0
-
5 s
Response time
(63%) to step hange of the
measured value
8s for air flow > 3,6k
m/
h
and swit hed off program filtration
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Reado t meas rement resol tion
programmable: 0.1 or 1 %RH, °C , g/m
3
C
omm nication
interfaces
(RS485 and PRG, do
not use
simultaneously)
-
RS485 (galvani ally
separated), option
-
baud rate
s
2.4
-
57.6 kb/s,
- hara ter format 8N1 (8 data bits, 1 stop bit, no
parity bits)
- MODBUS-RTU proto ol (SLAVE)
-
PRG programm
ing
onne tion (no separation),
standard
Bi
stable
o tp ts
(3 relays or SSR type)
-
relay
s
(P1
-
P3), standard
1 main (SPDT), 8A / 250 VAC (for resistan e loads),
2 additional (SPST-NO), 5A / 250 VAC
-
SSR (SSR1
-
SSR3), option
transistor type NPN OC, 11 V
, internal resistan e 440 Ω,
Analog o tp t
(1 urrent [mA] or
voltage [V] output)
-
0/4
-
20 mA
(standard)
resolution 12 bit, output load apa ity Ro < 500 Ω
-
0/2
-
10 V (option)
resolution 12 bit, output load apa ity Io < 4 mA (Ro > 2,5 kΩ)
-
output e
rror
basi < 0.1% ±0.01%/°C of the starting range
Binary inp t BIN
(bistable)
onta t or voltage < 24 V, a tive when: short ir uit or <0.8 V
A 7
-
segment LED display
(2 lines 3 digits ea h, with brightness
adjustment)
-
upper
green, 14 mm high (presenta
tion of humidity %RH or g/m
3
)
-
lower
red, 14 mm high
LED signalization of:
-
bi
stable
outputs
a tivity
3 indi ators, red
-
messages and errors
a 7
-
segment display
-
measurement units
2 indi ators: red (%RH), green (°C)
Power s pply
(Usup)
-
230 VA
C (standard)
85
-
260 Va / 3VA
-
24 VAC/DC (option)
20
-
50 VAC
/ 3 VA, 22
-
72 VDC/
3W
Rated operating conditions
-
20
-
+60 °C, <100 %RH (no ondensation, do not pour water on
the probe)
Operating environment
air and neutral gases
Enclos re protection
rating and mo nting
method
IP65, industrial en losure, wall
-
mounted
Weight
approx. 340 g (with the probe integrated with the AR247/1
en losure)
Electromagnetic compatibility (EMC)
immunity: a ording to the PN
-
EN 61000
-
6
-
2 standard
emission: a ording
to the PN
-
EN 61000
-
6
-
4 standard
Notes: (1) - periodi alibration of the devi e in a ordan e with the requirements in for e at the installation site or on e a year
is re ommended
(2) - for ontrollers with software version below 1.1 measurement a ura y is onsistent with the
do umentation in luded with pur hase
6. DIMENSIONS OF THE DEVICE AND INSTALLATION DATA
a) general data and dimensions of the standard version (AR247/1, probe AR281)
Enclos re type
industrial IP65, Gainta G2104
Material
poly arbonate
Enclos re dimensions
120 x 80 x 55 mm (W x H x D)
Fixing methods
4 holes, dia. 4.3 mm, distan e 108x50
mm, a essible after the front over is
removed
Cond ctor cross
-
sections (separable
onne tors)
2.5 mm
2
(supply and bistable outputs),
1.5 mm
2
(others)

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b) dimensions for external probes in different designs
b.1) AR247/2 b.2) AR247/3 (probe AR283) b.3) AR247/L150 and L250
(probe AR282) (probe AR284/L150 or L250)
c) installation of abling
- isolate the power s pply before making any changes to the cabling
- remove the 4 s rews in the front board and take it off the devi e
- loosen 1 s rew in the display board and slide it out caref lly from the bolt terminals; onne tors for power
supply, output, and signal wires are now a essible; hapter 7
- the ele tri ables must be inserted into the en losure through able glands
- after the devi e has been mounted and the abling has been installed, assemble the devi e arefully
performing the work in the reverse order
- in order to a hieve the IP65 rating, the nuts of the able glands and the en losure over must be tightened
pre isely
NOTE:
In order to avoid any mechanical and electrostatic damage, one m st be very caref l when handling the
display board.
7. DESCRIPTION OF TERMINAL STRIPS AND ELECTRICAL CONNECTIONS
The wire terminals are a essible after the front over and the display board have been removed; hapter 6.
Table 7. Numbering and des ription of terminal strips
Terminals
Description
1
-
2
-
3
-
4
measurement probe input (white
-
brown
-
green
-
yellow)
5
-
6
binary input BIN ( onta t or voltage <24 V)
7
-
8
analog urrent output (0/4
-
20 mA) or voltage output (0/2
-
10 V)
PRG programming onne tion for ooperation with the programmer
(
only
AR956
or
AR955
)
9
-
10
RS485 serial interfa e (MODBUS
-
RTU transmission proto ol)
12
-
13
power supply input 230 VAC or 24 VAC/DC
14
-
15
-
16
relay
output P1 or SSR1 (14
-
15)
17
-
18
relay
output P2 or SSR2
19
-
20
relay
output
P3 or SSR3
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a) the numbers of the terminals and the method of onne ting ele tri al wires - des ription of terminals Table 7
NOTE:
For onne ting the devi e with a omputer through the PRG so ket, use only the AR956 or AR955 programmer.
Conne tion made with a regular USB able may ause damage to the equipment.
8. IMPORTANT COMMENTS PERTAINING TO OPERATION
–
using the suppression systems
If an indu tion load is onne ted to the transmitter's onta ts (e.g. a onta tor oil or a transformer), when the
onta ts open up there are frequent overvoltages and ele tri al ar s aused by the dis harge of the energy
gathered in the indu tion. The parti ularly negative onsequen es of su h overvoltages in lude redu ed servi e
life of onta tors and transmitters, damage to semi ondu tors (diodes, thyristors, and tria s), damage to or
interferen e with the ontrol and measurement systems, and emission of ele tromagneti field that interferes with
lo al devi es. In order to avoid su h onsequen es, the overvoltages must be redu ed to a safe level. The simplest
method is to onne t an appropriate suppression module directly to the terminals of the indu tive load.
Generally speaking, appropriate types of suppression ir uits must be sele ted for ea h type of indu tive load.
Modern onta tors are generally fitted with appropriate fa tory-made suppression ir uits. If su h ir uits are
la king, a onta tor with an integrated suppression system must be pur hased.
Temporarily, the load an be shunted with an RC system, e.g. R=47 Ω/1 W and
C=22 nF/630 V. The suppression ir uit must be onne ted to the indu tive load
terminals. The use of a suppression ir uit limits burning of relays onta ts in the
ontroller and redu es the likelihood of their sti king.
9. FUNCTIO
NS OF UTTONS AND LED INDICATORS
Fig. 9. Des ription of the front panel
LED indi ators
7-segment LED displays
programming buttons
a) button fun tions in the measurement display mode
B tton
Description
[and marking in the ontents of the instru tions]
[UP] or [DOWN]: hange of preset value for output 1 (parameter 13: St1 or 42: HSEt
when output 1 is in the manual mode, see hapters 10 and 12.7)
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[SET] :
- go to the qui k a ess menu ( hapter 11)
[UP]
and
[DOWN]
(at the same time): go to the parameter onfiguration menu (after hold
time longer than 1 s). If parameter 45: Prt = on (password prote tion is a tivated) enter
the a ess ode ( hapter 10)
[F]: a tivation of a fun tion programmed with parameter 46: FbF (after holding for more
than 1 se ond, hapters 9.1 and 10)
b) button fun tions in the parameter onfiguration menu and the qui k a ess menu ( hapters 10 and 11)
B tton
Description
[and marking in the ontents of the instru tions]
[SET]
:
- sele tion of the item displayed in the onfiguration menu (entering a lower level)
- edits the urrent parameter (the value blinks in the lower display)
- approves and saves the edited parameter value
[UP]
or
[DOWN]
:
- moves to the next or previous parameter (submenu)
- hanges the value of the edited parameter
or
[UP] and [DOWN] (simultaneously) or [F]:
- returns to the previous menu (higher level)
- an els hanges to the edited value (the blinking stops)
- returns to the measurement display mode (only [UP] and [DOWN]
after hold time >0.5 s)
) fun tions of the LED signaling diodes
Diode
[marking]
De
scription
1
2
3
signals swit hing on of outputs P1/SSR1, P2/SSR2, and P3/SSR3
%RH °C
indi ators of measurement units, green on for %RH, green off for g/m
3
, red °C )
9.1. FUNCTION UTTON
AND INARY INPUT
The fun tion button [F] and the binary input BIN have the same fun tion, whi h is programmable with parameter
46: FbF ( hapter 10). The binary input works with the bistate signal i.e. the supplied signal (voltage or swit h) must
be permanent (on/off type). Moreover, button [F] is ina tive when the input BIN is a tive (short ir uit or voltage <
0.8 V). A tivation or dea tivation of the fun tion is indi ated by appropriate messages on the display (des ribed
below in Table 9.1).
Table 9.1. Available fun tions of the [F] button and the BIN input
So rce Description (depending on the value of parameter 46: FbF) Message
or
FbF = non button [F] and input BIN are ina tive (default fa tory setting)
-
FbF = St3
step
-
wise hange of the preset value for the P1/SSR1 output
(day = parameter 13: St1 /night = 27: St3 , Table 10) St1 / St3
FbF = bLo keyboard lo k (with the ex eption of button [F]) bLo / boF
FbF = hd1 un onditional manual mode for the P1/SSR1 output ( hapter 12.7) hAn / hoF

9
or
FbF = hd2 un onditional manual mode for the P2/SSR2 output hAn / hoF
FbF = hd3 un onditional manual mode for the P3/SSR3 output hAn / hoF
FbF = hdA un onditional manual mode for the analog output hAn / hoF
FbF = StS ontrol start/stop (applies to all outputs) Sta / Sto
FbF = rHt un onditional view of the values measured by the sensor (%RH,°C ) rHt / roF
10. SETTING OF THE CONFIGURATION PARAMETERS
All the ontroller's onfiguration parameters are saved in a non-volatile (permanent) internal memory.
There are two parameter onfiguration methods:
1.
From the film keypad lo ated on the front panel of the devi e:
- from the measurement display mode go to the onfiguration menu (simultaneously press the [UP] and
[DOWN] buttons simultaneously for more than 1 se ond) If parameter 45: Prt = on (password prote tion
is on) the display will show the message Cod , and then 000 with the first digit blinking, use the buttons
[UP] or [DOWN] to enter the a ess ode (fa tory setting of parameter 44: PAS = 111 ), to move to su essive
items and to approve the ode, use the [SET] button
- after entering the main onfiguration menu (with the message CnF ) the upper display shows a mnemoni
name of the submenu (parameter groups: chH <-> chL <-> ot1 <-> et .)
- use the[UP] or [DOWN] button to move to the relevant submenu and then use the [SET] button to approve
the sele tion (the name of the parameter is displayed in the upper display and the value - in the lower display)
- by pressing the [UP] button, you an move to the next parameter, and by pressing the [DOWN] button - to the
previous parameter (e.g. dPH <-> dtH <-> FLH <-> et .; the list of the onfiguration parameters is presented
in Table 10)
- to hange the value of the urrent parameter, press briefly the [SET] button (the parameter blinks in the
edition mode)
- use buttons [UP] or [DOWN] to hange the value of the edited parameter
- approved the hanged value of the parameter by pressing the [SET] button or an el it by pressing the [F] or
[UP] and [DOWN] buttons (the latter two must be briefly pressed simultaneously) - by pressing the [UP] and
[DOWN] buttons or the [F] button again, you will return to the main onfiguration menu (a higher level)
- to exit the onfiguration: press the [UP] and [DOWN] buttons for a long moment or wait approx. 2 minutes
2.
Use the RS485 or the PRG port (AR956/955 programmer) and the ARSOFT-CFG WZ1 software ( hapter 14):
- onne t the ontroller to a omputer port, start and onfigure the ARSOFT-CFG WZ1 appli ation;
- after the onne tion has been established, the urrent measured value is displayed in the window
of the softwares
- setting and viewing of the devi e parameters is possible in the parameter onfiguration window
- new parameter values must be approved with the Approve changes button
- the urrent onfiguration an be saved in a file or set using values read from a file
NOTE:
!
- before dis onne ting the devi e from a omputer, press the Disconnect device button (ARSOFT-CFG WZ1)
- in the event of no response:
- in the Program options he k the onfiguration of the port and the MOD US Address of the device
- make sure that the serial port drivers in the omputer have been properly installed for the RS485
onverter or the AR956 (AR955) programmer
- dis onne t for a few se onds and then re onne t the RS485 onverter or the AR956 (AR955)
programmer
- restart the omputer

10
In the event of indi ations different than the a tual value of the relative humidity or the temperature of the sensor,
the zero and the sensitivity of a sensor an be tuned: parameters 3: coH and 8: cot, as well as 4: cGH and 9: cGt .
To restore the fa tory settings, when the power supply is swit hed on press buttons [UP] and [DOWN] and hold
them until the password menu appears (Cod), and then enter the following ode 112. As an alternative, a file with
default onfiguration an be used in the ARSOFT-CFG WZ1 software.
NOTE:
!
Do not perform onfiguration of the devi e with the keypad and through the serial interfa e (RS485 or AR956/955)
at the same time.
Table 10. List of onfiguration parameters
Parameter Range of variability of the parameter and description
Fa tory
settings
HUMIDITY CHANNEL DISPLAY CONFIGURATION (upper display) - submenu chH
0: dPH value for the upper
display
rHu
measured relative humidity [%RH]
rHu
AHu
al ulated absolute humidity [g/m
3
]
1: dtH resolution of
humidity indi ations
0 resolution 1 %RH or g/m
3
1
(0.1 %RH)
1 resolution 0.1 %RH or g/m
3
2: FLH filtration (1)
1 ÷
10
digital filtration of measured humidity (response time) 3
3: coH alibration
of the zero
± 20.0 %RH zero shift for the measured absolute humidity 0.0 %RH
4: cGH alibration of the
in lination
/5.0 ÷ 15.0 % amplifi ation (sensitivity) orre tion for relative humidity 0.0 %
LOWER CHANNEL DISPLAY CONFIGURATION (temperature or set value for output 1) - submenu chL
5: dPL value for the lower
display
StE
measured sensor temperature [°C]
StE
dPt
al ulated dew/frost point temperature [°C]
St1 set value for output 1 (13: St1 or 42: HSt in manual mode,
hapter 12.7)
6: dtt resolution of
temperature indi ations
0 resolution of 1 °C for temperature 1
(0.1 °C)
1 resolution of 0.1 °C for temperature
7: FLt filtration (1)
1 ÷
10
digital filtration of measured temperature (response time) 3
8: cot alibration of the
zero ± 20.0 °C zero shift for the measured sensor temperature 0.0 %RH
9: cGt alibration of the
in lination /5.0 ÷ 15.0 % amplifi ation (sensitivity) orre tion for the sensor
temperature 0.0 %
MAIN OUTPUT CONFIGURATION (P1/SSR1) – submenu ot1 - hapter 12 (12.2)
10: cS1 ontrol signal for
output 1
rHu measured relative humidity [%RH]
rHu
AHu al ulated absolute humidity [g/m
3
]
StE measured sensor temperature [°C]
dPt al ulated dew/frost point temperature [°C]
11: Ft1 failure status of
output 1 (2)
output status in the ase of la k of or damage to the measurement sensor:
nCh = no hange, oFF = swit hed off, on = swit hed on, hnd = manual mode
with set output signal level (parameter 42: HSt , hapter 12.7)
oFF
12: Fn1 fun tion of
output 1 ( hapter 12.2)
oFF = swit hed off, hnd = manual mode, inv = reverse ontrol (heating or
humidifi ation), dir = dire t ontrol ( ooling or drying) inv