What to do if the TECSYSTEM Temperature Controller displays FOC/FCC?
If the fault relay trips and the TECSYSTEM Temperature Controller displays FOC/FCC, check the sensor connections. Also, inspect the sensors for any signs of damage and replace any that are damaged.
Why is the TECSYSTEM Temperature Controller showing the wrong temperature?
If the TECSYSTEM Temperature Controller displays an incorrect temperature on one or more channels, first check the sensor resistance to ensure it's compatible with your unit. If the sensors are compatible, the unit may be incorrectly calibrated, and you should return it for repair.
Why do alarm and trip relays energize when switching the TECSYSTEM Temperature Controller on or off?
If the alarm and trip relays energize when switching the TECSYSTEM Temperature Controller on or off, it could be due to strong electrical noise on the power line. Try installing a transient suppressor (PT73). Also, verify that the sensor cable shield is connected to the panel ground. You might need to install shielded cable or twist the sensor conductors.
How to troubleshoot a TECSYSTEM Temperature Controller that will not switch on?
If the TECSYSTEM Temperature Controller does not switch on even with control power energized, check the terminal block for correct installation. Also, verify that there is voltage at the terminal block.
What causes all sensors to display FCC on a TECSYSTEM Temperature Controller?
If all sensors on the TECSYSTEM Temperature Controller are displaying FCC, it could be due to wrong wiring connections, the terminal block being upside down, or incompatible RTDs.
What to do if TECSYSTEM Temperature Controller won't switch on with 24VDC power?
If the TECSYSTEM Temperature Controller cannot switch back on with a 24VDC power supply, ensure the input voltage is between 20-24VDC. Try reconnecting to a stable power source. If the unit still doesn't respond, it may need to be returned.
What causes the trip relay to suddenly operate on a TECSYSTEM Temperature Controller?
If the trip relay suddenly operates at a normal operating temperature on the TECSYSTEM Temperature Controller, and one channel caused the occurrence, the sensor may be defective (FCD). Replace the sensor.
What happens when a TECSYSTEM Temperature Controller sensor is damaged?
When the sensor of TECSYSTEM Temperature Controller is damaged, the fault relay closes, and the fault LED switches on. The red LED of the respective channel illuminates, and a message is displayed, indicating either 'FOC' for an open sensor or 'FCC' for a short-circuited sensor.
Details regarding the power supply for the control unit.
Compliance with regulations and performance characteristics.
General| Category | Computer Hardware |
|---|---|
| Inputs | 4x RTD Pt100, 4x Digital Input |
| Outputs | 4x Relay Output |
| Operating Temperature | -20° to 60°C |
| Storage Temperature | -20° to 70°C |
| Display | LCD |
| Ports | RS485 Modbus RTU |
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