Coolmay CM-4TM User manual

Coolmay Multi-channel temperature
control module CM-4TM
User Manual
Shenzhen coolmay Technology Co. Ltd

Contents
Introduction to use the manual.............................................................................. I
Descriptions of symbols in the communication manual.................................I
Safety Instructions....................................................................................................II
Operation Precautions............................................................................................III
Chapter 1 Product Introduction.......................................................................... 1
1.1 Characters..................................................................................................................... 1
1.2 Components and accessories................................................................................. 2
1.3 Components and features.........................................................................................3
1.3.1 Front........................................................................................................................................3
1.3.2 Bottom - wiring part...............................................................................................................4
Chapter 2 Product Specifications...................................................................... 5
2.1 Specification................................................................................................................. 5
Chapter 3 Wiring diagram and module connection diagram......................7
3.1 Wiring diagram -front view........................................................................................7
3.2 Wiring precautions......................................................................................................8
3.2.1 Sensor connection................................................................................................................ 8
3.2.2 Power connection................................................................................................................. 9
3.2.3 Communication connection................................................................................................. 9
3.3 Preparation and start..................................................................................................9
3.3.1 Overall sequence of operations..........................................................................................9
3.3.2 Set value status when power-on........................................................................................ 9
Chapter 4 Parameter settings and functions................................................ 28
4.1 Input.............................................................................................................................. 28
4.1.1 Input type and temperature range....................................................................................28
4.1.2 Input type setting.................................................................................................................29
4.1.3 Input sensor temperature unit setting.............................................................................. 29
4.1.4 Input deviation correction setting......................................................................................30
4.1.5 Input digital filter setting..................................................................................................... 30
4.1.6 SV Upper/lower limit setting........................................................................................... 31
4.2 Control output............................................................................................................ 32
4.2.1 Control output operation setting....................................................................................... 32
4.2.2 MV Upper/lower limit setting............................................................................................. 34
4.2.3 Slope setting........................................................................................................................ 35
4.2.4 Automatic/manual control settings................................................................................... 36
4.3 Temperature control................................................................................................. 38

4.3.1 Temperature control method setting................................................................................ 38
4.3.2 ON/OFF control................................................................................................................... 38
4.3.3 PID control........................................................................................................................... 39
4.3.4 Self-tuning............................................................................................................................ 41
4.4 Communication..........................................................................................................43
4.4.1 Communication address setting....................................................................................... 43
4.4.2 Communication speed setting.......................................................................................... 44
4.4.3 Communication Parity Bit Setting.....................................................................................45
4.4.4 Communication stop bit setting........................................................................................ 45
4.4.5 Communication response waiting time setting...............................................................45
4.4.6 Enabling/Disabling Communication Write Settings....................................................... 46
4.5 Additional features....................................................................................................46
4.5.1 Monitoring function............................................................................................................. 46
4.5.2 Run/Stop Settings...............................................................................................................47
4.5.3 Multi-segment SV................................................................................................................47
4.5.4 Error Detection Function....................................................................................................48
4.5.5 Parameter initialization functions......................................................................................49
Chapter 5 Troubleshooting method................................................................ 51
5.1 error display................................................................................................................51
5.2 Communication troubleshooting method...........................................................51
5.3 Control troubleshooting methods........................................................................ 52
Chapter 6 Modbus RTU protocol......................................................................53
6.1 Read coil status (Func 01-01H)..............................................................................53
6.2 Read Input Status (Func 02-02H).......................................................................... 54
6.3 Read hold memory (Func 03-03H)........................................................................ 55
6.4 Read input memory（Func 04-04H）...................................................................57
6.5 Preset a single memory（Func 06-06H）........................................................... 58
6.6 Preset multiple memories（Func 16-10H）....................................................... 59
6.7 Exception response - error code...........................................................................60
Chapter 7 Modbus mapping table....................................................................62
7.1 Read coil status / force single coil（Func: 01/05，RW:R/W）......................62
7.2 Read input status（Func: 02，RW:R）............................................................... 62
7.3 Read input memory（Func: 04，RW:R）........................................................... 63
7.4 Read input memory（Func: 04，RW:R）........................................................... 64
7.5 Read Hold Memory (Func 03) / Preset Single Memory ( Func 06) / Preset
Multiple Memory ( Func 16)........................................................................................... 65
7.5.1 Monitoring function [ Func: 03/06/16, RW: R/W].........................................................65

7.5.2 Operation (control operation) function (Func: 03/06/16, RW: R/W).........................65
7.5.3 Master output function (Func: 03/06/16, RW: R/W)....................................................66
7.5.4 Initial setting function (Func: 03/06/16, RW: R/W)......................................................67
7.5.5 Set the master output function (Func: 03/06/16, RW: R/W)...................................69
7.5.6 Setting options (communication settings) function (Func: 03/06/16, RW: R/W).70

I
Thank you for purchasing Coolmay products.
This user manual includes the instructions and methods of the product. Please
read it before using.
Introduction to use the manual
◆Please read carefully before using the product
◆The purpose of this manual is to introduce the functions of this product in detail, and
is not responsible for other purposes..
◆This manual can not be edited or copied without authorization.
◆This manual is not included with the product. Please download it from our website
www.coolmay.com
◆The contents of this manual may differ due to product changes or other reasons
without prior notice.
◆Please leave us messages if you have any suggestions for this manual.
Descriptions of symbols in the communication manual
Symbol
Description
Special function supplement.
Warning sign, failure to follow this warning may
result in accident or death
Attention signs, failure to follow this warning
may result in malfunction or product damage
Related function use examples
※ 1
comment mark

II
Safety Instructions
Following these safety precautions ensures safe and correct use of the product and
helps prevent accidents and reduce risk.
Safety instructions are divided into two categories: warning and caution:
Warning sign, failure to follow this warning may
result in accident or death
Caution signs, failure to follow this warning may
result in malfunction or product damage
◆When using large instruments (such as nuclear power, medical machinery,
surveying, railway, aviation, combustion equipment, entertainment machinery, etc.,
including safety facilities) that have an impact on life or property, please make sure to
perform double safety measures before using. Otherwise, fire, life-threatening, property
damage may occur.
◆Installed on the panel, otherwise it may cause electric shock.
◆Make sure to disconnect the power supply while checking or repairing, otherwise it
may cause electric shock.
◆Please check the polarity of the power supply before powering up, otherwise it may
cause fire.
◆Please do not disassemble or modify the product. If you need internal inspection or
repair, please contact our company. Otherwise, it may cause fire, electric shock and
product damage.
◆Do not use this product outdoors, otherwise may result in short product life or
electric shock.
◆Use AWG 20 (0.5mm2) or better cable when connecting, otherwise it may cause
fire.
◆Use this product within the rated specifications, otherwise it may damage the

III
product or cause fire.
◆Do not connect a load that exceeds the rated range, otherwise it may damage the
product or cause fire.
◆Do not use detergents such as water or oil to clean the product. Wipe it with a dry
towel, otherwise may damage the product or cause fire.
◆Do not use this product in a place that is flammable, explosive, humid, direct
sunlight, high temperature, strong vibration or shock, otherwise it may cause fire or
explosion hazard.
◆Do not allow dust or wiring residue to go into the product, as this may cause fire or
damage to the product.
◆Please check if the polarity of the sensor is connected correctly before using,
otherwise it may cause fire or explosion hazard.
Operation Precautions
Please read the precautions carefully before using, otherwise it may cause damage
to the product or accident.
Power supply voltage and use environment
◆Use the voltage within the rated range.
◆Ambient temperature: -10℃~50℃.
◆Power on the product for 20 minutes before using.
◆Install a switch or circuit breaker to control the power supply voltage of the product.
◆Install the switch or circuit breaker near the product for easy operation.
◆Please install and use this product in a well ventilated environment, if necessary,
install a cooling fan.
◆Please use the product in the environment as below.
Indoor, altitude below 2000m, pollution level 2, installation category II

IV
Input sensor
◆If it is unavoidable to avoid the temperature detected by the sensor due to
environmental factors, please use the deviation correction to minimize the error.
◆When using a thermocouple sensor, please use the compensation wire of the rated
range when extending the wire. Otherwise, the joint between the thermocouple and the
extension wire will be thermally deformed, resulting in inaccurate measurement
temperature.
◆If using a RTD sensor, connect three terminals and use three cables with the same
material, thickness and length. Otherwise, thermal deformation may occur, resulting in
inaccurate measurement temperature.。
◆When changing the input sensor, please disconnect the power supply, connect the
new sensor, and then power on the PC to modify the relevant parameters.
◆Install the filter on the controller. In addition, install the shield wire near the power
supply.
Noise impact
◆Product power line and high-voltage line are separately routed to prevent impulse
noise interference.
◆Please try to avoid high frequency noise interference in the environment, such as
welding machine, sewing machine, high-capacity SCR controller and high-capacity motor.
◆Do not use this product in accessories of high frequency broadcast, TV and wireless
equipment.
Communication
◆Use twisted pair cable for communication cable and ferrule on both sides of the
cable to reduce external noise interference.
◆Do not arrange communication cables on the AC power accessories.
◆Pleease use independent power supply voltage (24VDC) for communication
converter.

Chapter 1 Product Introduction
1
Chapter 1 Product Introduction
1.1 Characters
CM-4TM temperature controller module realized high-speed sampling (cycle: 100ms),
side connection can expand up to 31 modules. It communicates with PC through RS485,
and a variety of convenient and simple functions can achieve precise temperature control.
◆Up to 124 simultaneous control
◆Insulation strength per channel - dielectric strength 1,000VAC
◆Up to 31 modules (124 channels / 62 channels) can be connected. The expansion
modules used do not need additional communication and power supply.
◆High-speed sampling period: 100ms
◆Heating/cooling simultaneous control
◆Sensor status can be monitored by current transformer (CT)
◆Communicate with PC via RS485 (Modbus RTU)
◆Connector wiring is convenient for wiring and maintenance: Sensor input interface,
control output interface, power/communication connector use pluggable terminal
◆Multi-channel inputs / multiple ranges
◆Applications: Hot runner systems, electronic furnaces, reflow soldering, catapults
and extruders

Chapter 1 Product Introduction
2
1.2 Components and accessories
Components
Body Terminals
Please confirm whether the components are complete after
your purchase. If any defects or damage, please contact the
sales for after-sale services.
Please note that the power/communication connector is only
included in the basic module.
Please visit the official website www.coolmay.com to download
the user manual.

Chapter 1 Product Introduction
3
1.3 Components and features
1.3.1 Front
LED display
Status
LED display
Power on ※1
Output
control
Self tuning
※2
Power LED ※3
Green
Green
Green
CH1 LED
2400bps-flicker
ON-red
flicker
CH2 LED
4800bps-flicker
ON-red
flicker
CH3 LED
9600bps-flicker
ON-red
flicker
CH4 LED
19200bps-flicker
ON-red
flicker
38400bps-flicker
※1. After the power is on, the LED indicator will flash once in sequence, then locate the
corresponding frequency with communication speed set earlier. The LED flashes for 5
seconds (cycle: 1 second).
*2. The corresponding LED will flash while self tuning (cycle 1 second).
*3: The power LED flickers while communicating with the outside (cycle 1 second).

Chapter 1 Product Introduction
4
1.3.2 Bottom - wiring part

Chapter 2 Product Specifications
5
Chapter 2 Product Specifications
2.1 Specification
Item
CM-4TM
Channels
4 channels----Each channel insulation, dielectric strength1,000VAC
Voltage
24VDC
Voltage range
Nominal voltage * 90% ~ 110%
Power
Max.5W (max load)
Display type
Non-display type - modify parameters and real-time monitoring (PC
or PLC) via external device
Input
RTD
DPt100Ω, JPt100Ω 3 line(resistance: Max. 5Ω)
Thermocou
ple
K, J, E, T, L, N, U, R, S, B, C, G and PLII (13 types)
Display
precision
RTD
(PV±0.5% or ±1℃greater) < ±1 bit
Thermocou
ple ※1
Temperatur
e effect
※2
RTD
(PV±0.5% or ±2℃greater) < ±1 bit,
(If thermocouple input, ±5℃when lower than -100℃),
thermocouple L ,U, C, G, R, S, B: (PV±0.5% or ±5℃greater) < ±1bit
Thermocou
ple
Control
output
Relay
250VAC 3 A 1a
SSR
22VDC ±3V Max.30mA
Communication output
RS485 (Modbus RTU protocol)
Control
mode
Heat, cool
ON/OFF control, P, PI, PD, PID control
Heat & cool
Lag
RTD/thermocouple: 1~100℃/℉(0.1~100.0℃/℉) optional
Proportional band (P)
0.1 ~ 999.9℃
Integral time (I)
0 ~ 9999 sec.
Derivative time (D)
0 ~ 9999 sec.
Control cycle
0.1~120.0 seconds (relay output, SSR drive voltage output type
product)
Hand reset
0.0 ~ 100.0%
Sampling cycle
100ms(4 channels can be sampled simultaneously)
Proof voltage
1000VAC 50/60Hz last 1 minute (between input and power
terminals)

Chapter 2 Product Specifications
6
Item
CM-4TM
Vibration resistance
5 ~ 55Hz (1 minute cycle) amplitude 0.75mm X, Y, Z every direction
2 hours
Relay life
Mechanical
> 10,000,000 times
Electric
> 100,000 times (250VAC 3A resistive load)
Insulation resistance
> 100MΩ (based on 500VDC)
Anti-interface
Interference simulator square wave interference (pulse width 1μs)
±0.5kV
Environmental
temperature
-10 ~ 50℃, Storage: -20 ~ 60℃
Environmental humidity
35 ~ 85%RH, Storage: 35 ~ 85%RH
Attachments
Expansion connector
Power/communication connector [Basic Module only]
Insulation type
Double or reinforced insulation (dielectric strength between the input
and power sections: 1kV)
Certificate
CE, UL
Weight
Approx. 135 ~ 152g
*1. Thermocouples K, T, N, J, E are below -100 °C and L, U, Platinel II: ±2 °C ± 1 or less. When
the thermocouple B is below 400 °C, the detection accuracy cannot be guaranteed. When R, S
is below 200 °C, it is equal to C, G: 3 °C ± 1 or less.
*2. It is suitable for the situation beyond normal temperature (23 °C ± 5 °C).
Net weight of product refers to the table below.
Model
Weight
CM-4TM
Approx. 130g

Chapter 3 Wiring diagram and module connection diagram
7
Chapter 3 Wiring diagram and module
connection diagram
3.1 Wiring diagram -front view
When wiring the thermocouple type, connect B, B-; When wiring the two-wire
resistors, connect A and B; When wiring the three-wire resistor, connect A, B,
B-.
Connecting the power/communication terminals,notice the
polarity of the terminals.
Use AWG 28-16 wires for sensors or compensation wires.
When SSR output, recommend AWG 24 and above cables.
When Relay output, recommend AWG 20 and above cables.

Chapter 3 Wiring diagram and module connection diagram
8
3.2 Wiring precautions
◆Incorrect connection of the input terminal and output terminal may result in damage to
the product.
◆Please use the sensor type supported by this product.
◆Make sure the SSR or load is within the rated range.
◆Make sure the communication cable is properly connected to the communication
terminals (A, B).
◆Be sure to connect the polarity (+, -) of the terminal correctly.
3.2.1 Sensor connection
Compensation wire connection
When using a thermocouple sensor, if you extend the wire, use the same size
compensation wire if you use different specifications.
The compensation wire may have a temperature error. Try to choose a
high-performance compensation wire for more accurate temperature measurement.
Measurement error
◆Do not connect the positive and negative polarity of the sensor.
◆Please pay attention to maintain the distance between the load and the sensor.
◆Make sure the sensor is securely connected to the terminal.
AC power wiring
Do not install the sensor near an AC power source.
Input sensor (or compensation wire) connection

Chapter 3 Wiring diagram and module connection diagram
9
Make sure the sensor cable is fully inserted into the terminal.
Sensor/crimp terminal connection spec AWG28~16 (DI:
0.32~1.295mm).
Fix the sensor to make the measurement more accurate.
3.2.2 Power connection
Power supply wiring, please refer to 1.3.2 Bottom-power wiring
Use AWG 24 ~ 12 specifications for the power cord.
First calculate general power according to the usage and then
connect the corresponding power.
3.2.3 Communication connection
For the communication connection, please refer to 1.3.1 introduction.
3.3 Preparation and start
3.3.1 Overall sequence of operations
Perform the following steps before operating the CM -4TM for the first time.
1. All external devices, sensors and loads are connected to the CM -4TM terminals.
2. Modify the relevant parameters (PC, GP, etc.) through the external connection device.
3. Load the set parameters into the CM -4TM.
4. After setting the SV value, perform auto-tuning. Use this product after self-tuning.品。
3.3.2 Set value status when power-on
Setting type
Factory
default
Value before
power-on
Value after
power-on
Com address(CH1)※1
auto/ manual
auto
auto
auto
400004(0003H)
manual
manual
Run/stop
Run
Run
Run
400051(0032H)
Stop
Stop

Chapter 3 Wiring diagram and module connection diagram
10
PID/ONOFF
PID
PID
Keep presets
ONOFF
Keep presets
MV
0.0
Preset MV
Keep presets
0.0
Stop MV
Keep presets
0.0
Sensor Error MV
Keep presets
※1：The communication addresses involved in this manual are the addresses of
channel 1 (CH1). For the address of channel 2-channel 4, please refer to
Chapters 6 and 7..

Chapter 4 Parameter settings and functions
28
Chapter 4 Parameter settings and functions
4.1 Input
4.1.1 Input type and temperature range
Input type
No.
Decimal
Parameter
Input range (℃)
Input range (℉)
Thermoco
uple
K(CA)
0
1
K(CA).H
-200 ~ 1350
-328 ~ 2462
1
0.1
K(CA).L
-200.0 ~ 1350.0
-328.0 ~ 2462.0
J(IC)
2
1
J(IC).H
-200 ~ 800
-328 ~ 1472
3
0.1
J(IC).L
-200.0 ~ 800.0
-328.0 ~ 1472.0
E(CR)
4
1
E(CR).H
-200 ~ 800
-328 ~ 1472
5
0.1
E(CR).L
-200.0 ~ 800.0
-328.0 ~1472.0
T(CC)
6
1
T(CC).H
-200 ~ 400
-328 ~ 752
7
0.1
T(CC).L
-200.0 ~ 400.0
-328.0 ~ 752.0
B(PR)
8
1
B(PR)
0 ~ 1800
32 ~ 3272
R(PR)
9
1
R(PR)
0 ~ 1750
32 ~ 3182
S(PR)
10
1
S(PR)
0 ~ 1750
32 ~ 3182
N(NN)
11
1
N(NN)
-200 ~ 1300
-328 ~ 2372
C(TT) ※1
12
1
C(TT)
0 ~ 2300
32 ~ 4172
G(TT) ※2
13
1
G(TT)
0 ~ 2300
32 ~ 4172
L(IC)
14
1
L(IC).H
-200 ~ 900
-328 ~ 1652
15
0.1
L(IC).L
-200.0 ~ 900.0
-328.0 ~ 1652.0
U(CC)
16
1
U(CC).H
-200 ~ 400
-328 ~ 752
17
0.1
U(CC).L
-200.0 ~ 400.0
-328.0 ~ 752.0
Platinel II
18
1
PLII
0 ~ 1400
32 ~ 2552
RTD
JPt100 Ω
19
1
JPt100.H
-200 ~ 600
-328 ~ 1112
20
0.1
JPt100 .L
-200.0 ~ 600.0
-328.0 ~ 1112.0
DPt100 Ω
21
1
DPt100.H
-200 ~ 600
-328 ~ 1112
22
0.1
DPt100. L
-200.0 ~ 600.0
-328.0 ~ 1112.0
※1: C(TT): The same temperature sensor as W5 (TT).
※2: G(TT): The same temperature sensor as W(TT).
The sensor feeds the detected temperature back to the thermostat and then controls
the temperature through the thermostat.
SV (set value) is only allowed to be set within the input range.

Chapter 4 Parameter settings and functions
29
4.1.2 Input type setting
This product supports a variety of sensors, users can choose thermocouple or
thermal resistance according to demand.
Different sensors can be used for each individual channel. Example): CH1 input type
= KCA.H, CH2 input type = JIC.H
Parameter
group
Parameter
Setting
range
Factory
default
Unit
Com
address
Initial set
function
CH1 Input type
Refer
to4.1.1
K(CA).H
−
400151(0096H)
When input type is changed, the upper and lower input range will automatically change to the
selected sensor input range, reset these parameters (SV, multi-segment SV setting,
SV-0~SV-3 and input deviation correction are initialized) to ensure that the measurement
environment remains unchanged.
If the measured range is above or below the input range, HHHH (above), LLLL (lower)
will be displayed, and OPEN will be displayed when the sensor is not connected or
disconnected.
4.1.3 Input sensor temperature unit setting
When the input sensor type is set, the temperature unit can be set according to the
actual demand.
Parameter group
Parameter
Setting range
Factory
default
Unit
Com
address
Initial set function
CH1 Temp unit
℃/℉
℃
-
400152(0097H)
When the temperature unit is changed, the input type remains
the same, but SV, multi-segment SV setting, SV-0~SV-3, SV
upper/lower limit and input deviation correction are initialized.