MexTRACE-RMO-EXE-01
Description
Single-channel thermostat MexTRACE-RMO-EXE-01 is used to control one heat tracing line and monitor the heating element. The thermostat can provide load control based on both its own measurement and data received from external modules. Piping temperature-based control is possible with load current characteristics rather than temperature sensing. MexTRACE-RMO-EXE-01 measures operating current, residual (leakage) current, and has interlock functions based on these.
The thermostat may be used independently or as part of automated EHT systems.
Data exchange with the monitoring / control system is provided via RS-485/CAN serial interface.
Design
1. X-proof enclosure
2. X-proof single-channel load control
3. Terminals
4. Cable glands
5. Heating cable entry adapter
P.O. Details
Please provide the following item number in your P.O. for a distribution and control module (one control line): MexTRACE-RMO-EXE-01
Please provide the following item number in your P.O. for a controller: HCR-01F-2TI Ex
General Characteristics
|
Rated voltage |
230 V, 50 Hz |
|
Control lines |
1 |
|
Operating current |
up to 40 A |
|
Interface (optional) / protocol |
RS-485(CAN) / ModBus RTU (CANopen) |
|
Earth system |
TN-S, TN-C, TN-C-S |
|
Ingress protection |
IP 66 |
|
Certificate, Ex category |
Meets CU TR 012/2011, Cert.# RU C-RU.AM02.B.00549/21,1Ex e mb [ia Ga] IIC T5 Gb X |
|
Type of temperature sensors |
Pt100; Pt1000; Ni100; Cu 100; Cu 50; 100 M; 50 M; Pt 50; 50 П; 100 П; 1000 П J, K, N, L, E, R, T, A1, A2, A3, S, B, M |
|
Number of temperature sensor connections |
2 |
|
Temperature sensor wiring diagram |
Three-wire, Two-wire |
|
AC switching voltage |
0 to 480 V |
|
Load current range |
0 to 40 A |
|
Residual current range |
0 to 400 mA |
|
Operating temperature range |
-60 to +55 °C |
|
Dimensions (WxHxD) |
152x180x109 mm |
Operation
Heating sections are controlled by switching between the following modes:
- Heater OFF – The line is always off
- Heater ON – The line is always on
- Remote – The line is controlled with higher level signals via communication interfaces
- Thermal Relay – The device supports custom object temperature relying on temperature sensor data
- PWM – The line is alternately turned on and off subject to user-defined period and PWM duty cycle duration.
- Proportional PWM – PWM duty cycle duration is interpolated linearly between two points, i.e. between the top and lower setpoints. The temperature and duration of the duty cycle are defined for each setpoint. As long as air temperature does not exceed the lower setpoint, the duty cycle value remains constant and equal to the value at the given setpoint. In case air temperature exceeds the top setpoint, the duty cycle value is equal to zero, i.e. the line is off. The time the line goes on between the top and lower limits is determined by interpolation.
External Connection Circuit
Single-Phase Load Wiring
Two-Phase Load Wiring