COMECO TI08 User manual

COMECO Inc., P.O.Box 378, Plovdiv 4000, BULGARIA, tel: [phone], 646524, fax: 634089
e-mail: [e-mail], WWW.COMECOGROUP.COM
TI08
OPERATION MANUAL
Please read this Operation Manual before mounting and operating!
Save the Manual for future references!
PROCESS INDICATOR (TRIP ALARM UNIT)
v5-1-05.14

Overview 2
TI08 is an economical 4-digit programmable
process indicator / trip alarm unit
with an input for linear current, voltage, or
resistive signals. The device can be ordered
with up to 2 relay outputs and for mains
or low-voltage AC/DC supply.
Mounting
♦Place TI08 into an appropriate
panel cut-out.
♦Tighten it into place using the enclosed
mounting bracket(s).
Electro-Magnetic Interference (EMI) Issues
Important note:
A built-in RC noise
suppression circuit may
be connected in parallel
with relay contacts.
Full AC voltage isolation
may NOT be provided
when relay contacts
are open.
Small AC current
(≈1.5 mA at 230 VAC)
may still flow through
the RC circuit!
♦All signal wires must be shielded.
They must not be packaged together
with power cables!
♦Never lay the signal wires close
to inductive or capacitive noise sources,
such as relays, contactors, motors, etc.!
♦All shields have to be grounded ONLY
at one end, as closer as possible
to the indicator terminals!
♦Avoid sharing supply lines with powerful
consumers, especially with inductive loads,
switched on and off.
♦To stop unwelcome interference signals
entering through the power supply lines,
use shielded 1:1 isolation transformer!
♦Shunt all switched (not only those switched
by the indicator) inductive consumers
with special suppression networks:
RC group and varistor - for AC loads,
or diode - for DC loads.
♦If the indicator operates in a very powerful
EMI area, it has to be mounted inside
a grounded metal shielding box!

Wiring 3
Important notes:
♦Power supply must be turned off
during mounting and wiring!
♦With cases 'B', 'H', and 'V', use terminal A10
for range 0...10 V, and A11 – for other.
♦In case of a TI08-L with 90...250 V
power supply, use terminal 8 for grounding,
and 5 – for input wiring, and adjust
the jumper as shown on the device label.
♦Connecting a potentiometer requires
excitation voltage of 5 V, 10 mA
(see 'Specifications').
Input signal wiring
Connect the input
with regard to its type
through the respective and
depending on the case type
(see 'Specifications')
terminals on the device back.
Voltage transmitters
should be powered
ONLY
by external source!
Output wiring
Connect the outputs
with regard to their types
(see 'Specifications')
via the respective terminals.
Power supply wiring
Connect the right power
supply voltage for your device
(see 'Specifications')
through the respective
terminals.
More detailed
wiring schematics
are available at
comecogroup.com
under 'Support' tab.

Parameter Symbol Description
Parameters of Level L3
Input Type inP Type of the input signal in case of programmable input
Point Position 
Pnt Display decimal point position
Input Low ILo Display value at low limit of the input range
Input High Ihi Display value at high limit of the input range
Input Correction Icor Constant to be added to the measured input value
Gradient GrAd Maximum admissible input change for 120 ms sampling period
Filter Time \t Relative time constant of the input filter
Filter Band \b Zone around the measured value, within which the filter is active
SP Limit Low %[L Set-point low limit
SP Limit High %[h Set-point high limit
Parameters of Level L2
Direction 1 diR1 Control action direction of output OUT1
+Differential 1 [e1 Relay switching differential over set point for output OUT1
-Differential 1 me1 Relay switching differential under set point for output OUT1
Time On 1 ym1 ON duration of pulsed output OUT1
Time Off 1 y\1 OFF duration of pulsed output OUT1
Hold On 1 km1 Holds the output OUT1 reaction when being activated
Hold Off 1 k\1 Holds the output OUT1 reaction when being deactivated
The same 7 parameters, but with index 2– for output OUT2
Parameters of Level L1
Set Point 1 %[1 Set-point value of output OUT1
Set Point 2 %[2 Set-point value of output OUT2
Access-Control Paramete
r
(parameter of Hidden level)
Access
Control Level Qxl Controls the access to device parameters
*With potentiometric input, after wiring the device and setting desired values to Input Low and Input High,
Input High value differ, to adjust the device to display PV correctly,set new Input High value as calculated
Input Highnew = Input Low + (Input High - Input Low)2/ (PV(100%) - Input Low)

Table 1
Value Unit Notes
w)10, w)5,
I)20, I$20 - w)10 (0…10 V), w)5(0...5 V; potentiometer 0.5...10 kΩ),
I)20 (0…20 mA), I$20 (4…20 mA)
0, 0.0, 0.00, 0.000 - when indicating values with the input-signal measurement unit (ISU)
-1999 ... 9999 ISU
-1999 ... 9999 ISU *
-1999 ... 9999 ISU display offset value
0 … 9999 ISU used for input peak filtration; value '0' cancels the filtration
0 … 999 - This parameter and the following one define a low-pass input filter.
0 … MISU M= 25% of input range
-1999 ... 9999 ISU These parameters keep the set points in safe limits,
preserving them from random changes.
cooL, hEAt - 'cooling' - activates over set point, 'heating' - activates under set point
0 ... 9999 ISU less than (high range limit - Set Point 1)
0 ... 9999 ISU less than (Set Point 1 - low range limit)
0 ... 9999 sec. pulse duration; value '0' disables pulse mode
0 ... 9999 sec. pause duration; value '0' disables pulse mode
0 ... 9999 sec. Value '0' disables hold mode.
-1999 ... 9999 ISU within operating range limits Input Low ... Input High,considering
SP Limit Low(High),Input Correction, and +/-Differential 1(2)
FuLL,L1, no - FuLL (full access), L1 (access only to parameters of level L1),
no (no access)
check the PV(100%) value when potentiometer slide is positioned at 100%. If PV(100%) value and
by the formula:

Parameter Programming 6
Some parameters
are accessible only
when the respective
functionality is installed.
(see 'Specifications').
- Changing
Point Position value
reflects on the real value
of all parameters
with ISU!
E.g.: changing
Point Position value
from (0) to (0.0)
would change
a set-point value
of 100 to 10.0!!!
Device parameters
TI08 is a programmable device whose
service behavior is determined by a set
of parameters. All the parameters, along
with their names, symbols, and value ranges,
are given in Table 1.
Setting numerical parameter value
♦Enter parameter value adjustment mode
(see 'Program Levels').
♦The whole part of the value together with
the left zeroes appears on the display,
and the rightmost digit blinks.
♦To select another digit, press .
♦The 3 rightmost digits can accept values
from 0to 9, and the leftmost digit
can also accept the values -and `.
♦To increase or decrease the blinking digit
value, use respectively or .
♦Confirm the adjusted value by pressing
simultaneously + or + .
♦If the new value has not been confirmed
and no key has been pressed for a certain
period of time, value adjustment
automatically ceases, and the parameter
retains its initial value.
Setting symbolic parameter value
♦Enter parameter value adjustment mode
(see 'Program Levels').
♦Read the blinking parameter value.
♦To change the value, use or ,
and to confirm, press +
or + .
♦If the new value has not been confirmed
and no key has been pressed for a certain
period of time, value adjustment
automatically ceases, and the parameter
retains its initial value.

Program Levels 7
With cases 'L' and 'M',
use instead of .
Programming order
♦Set full access to device parameters.
♦Adjust the parameters.
♦If needed, restrict the access again
by adjusting the Access Control Level
parameter.
Access control (Hidden level)
♦Hold depressed while turning
the power supply on and until
Qxl appears.
♦Set access level according to Table 1.
Basic level
At power-on, TI08 enters Basic level.
At this level, the device indicates
the measured input value (PV)
with a resolution, according to
the Point Position parameter.
♦If the whole part of PV cannot be
entirely displayed, the unit generates
a blinking 'overflow' message
(oL or -oL, depending on PV sign).
♦If PV is out of the device physical
operating range, it displays
blinking symbolic message: <__>
(under-range) or {++} (over-range).
♦Upon entering Basic level, TI08
may display the init message,
indicating that some time is necessary
for filter initialization.
♦The noiS message may appear
as a result of the peak filter operation
(see 'Input filtration').
Set-point adjustment (Level L1)
♦To enter Set Point 1 adjustment mode,
press and hold until %[1
appears on the display. Release the
key to view the set-point value.
♦To enter Set Point 2 adjustment mode,
follow the same procedure,
but start with the key.

Program Levels 8
Programming (Levels L2 and L3)
♦Enter from Basic level
by pressing and holding .
♦To access and adjust
the parameters from level L2,
release the key while L2
is displayed. To enter level L3,
release the key when L3
appears on the display.
♦Choose a parameter
using or .
♦To enter parameter value
adjustment mode, press .
♦If no key has been pressed
for a while, the device
automatically returns
to Basic level, storing all
confirmed changes.
♦For quick exiting and saving,
use key combination +,
+, or +.
Output Control
Alarm output operation
♦The alarm outputs operate
according to the control
algorithm parameters.
♦When an error is detected
(see 'Error messaging'),
the outputs deactivate and
restore after all discrepancies
have been resolved and
programming exited.
ON/OFF control algorithm
The static characteristic
of an alarm relay controlled
by an ON/OFF algorithm
is shown on the left drawing.

Output Control 9
Output hold
For eliminating
undesirable output switches,
additional parameters
(Hold On and Hold Off)
are assigned to hold
the output reaction
for certain period of time.
Output pulse mode
When an output is activated
by the control algorithm, it
can either stay ON or pulse
depending on Time On and
Time Off parameter values.
Error Messaging
Message Parameters Error type
FAiL all incorrect memory
ER1 GrAd
out of range
ER2, ER3 \t, \b out of range
ER4, ER5 %[L,%[h out of input range *
ER6 %[L,%[h %[L> %[h
ER11, ER21 ym1,ym2 out of range
ER12, ER22 y\1, y\2 out of range
ER13, ER23 km1,km2 out of range
ER14, ER24 k\1,k\2 out of range
ER15, ER25 [e1,[e2 out of range
ER16, ER26 me1,me2 out of range
ER17, ER27 %[1,%[2 outside %[L...%[h
ER18, ER28 %[x-mexunder input range *
ER19, ER29 %[x +[exover input range *
* device physical operating range considering Input Correction
♦In some cases, TI08
finds discrepancies
in parameter values
that must be resolved
before operating
at Basic level.
♦The device indicates
such kind of problems
by displaying
error messages
as given on the left.
♦If FAiL appears
on the display,
try debugging
by turning
the power off/on.
♦If the problem persists,
press and hold
to restore the default
(factory) settings.

Input Filtration 10
Peak filter
This filter is intended for eliminating
pulse spikes (peaks), which can appear
in the input signal, in the following way:
♦TI08 measures the input signal value
every 120 ms (sample time).
♦The measured values are compared
subsequently. The filter checks
the difference between the last
2 samples. If it does not exceed
Gradient value, the device accepts
the signal as normal.
♦If the last measured value differs
from the previous one by more than
the Gradient value, the filter output
is held until the device determines
a presence of a normal signal.
It is possible only if the input signal
has not been changed with more than
the Gradient value for 4 subsequent
samples.
♦If the device has not determined
a normal signal for 20 subsequent
samples, noiS appears on the display
(see 'Basic level').
Low-pass filter
This first-order filter acts ONLY within
a certain band around filter output value.
This has been designed to cut periodic
noises outside the communication signal
spectrum.
♦Filter operation is defined by two
parameters:
Filter Time (defines filter time constant) and
Filter Band (defines filter active band
around filter output value).
♦If the newly measured value differs
from the filter output by more than
Filter Band, the filter resets
with a new initial output value
(newly measured value).

Declaration of Conformity 11
The undersigned hereby declares,
on behalf of COMECO Inc., that this
process indicator (trip alarm unit) model TI08
has been manufactured in compliance
with standards EN 61010-1 and EN 61326-1,
and meets the requirements
of Directives 2004/108/EC and 2006/95/EC.
Krasimir Darakchiev, CEO
COMECO Inc.
Waste Disposal
Do not dispose of
electronic devices
together with
household waste
material!
If disposed of within European Union,
this product should be treated
and recycled in accordance with the laws
of your jurisdiction implementing
Directive 2012/19/EU on waste electrical
and electronic equipment (WEEE).

Specifications 12
Case
Input
Outputs:
Electromechanical relay
SSR
MOS gate
Output for external SSR
- OUT1
- OUT2
Power Supply
Excitation Voltage (Vaux)
Consumption
Measurement Error
Temperature Drift
Ambient Temperature / Humidity
Protection Class: front / terminals
'B', 'H', 'V', 'S', 'L', 'M'
programmable,
fixed, .................................................
up to 2
5A/250VAC with NO/NC or NO contact,
3A/250VAC with NO contact
1A/250VAC, 0.2A/250VAC
0.1A/60V, optically isolated
5...24 VDC, 30 mA
relay, SSR, MOS gate, for ext. SSR
relay, SSR, MOS gate, for ext. SSR
230 VAC, 90…250 V,
24 VDC, 12...24 V,
.............................................
10...30 V, 30 mA, 5 VDC, 10 mA, stabilized,
.............................................
less than 1.5 VA
≤±0.3% from span
≤±0.02% from span for 1 °C
-10…65 °C / 0…85% RH, non-condensing
IP65, IP54, IP44 / IP20
Warranty and Support
………………………….
article number
………………………….
serial number
………………………….
manufacturing date
QC check mark …….……(passed)
(stamp)
88 Slavyanska Str.
P.O.Box 378
Plovdiv 4000, BULGARIA
tel: [phone], 646524
fax: [phone], 646517
e-mail: [e-mail]
QD-8.2.4-WC
Warranty
COMECO warrants this product
to be free from defects in materials
and workmanship for 2 years. If your unit
is found to be defective within that time,
we will promptly repair or replace it.
This warranty does not cover accidental
damage, wear or tear, or consequential
or incidental loss. This warranty
does not cover any defects caused
by wrong transportation, storage, installation,
or operating (see 'Specifications').
Technical support
In the unlikely event that you encounter
a problem with your COMECO device,
please call your local dealer or contact
directly our support team.