What to do if all PT100 sensors are in FCC in TECSYSTEM NT935 ETH?
If all PT100 sensors are showing an FCC error, it might be due to an incorrect sensor connection or the terminal block being inserted upside down. Verify the connections and the terminal board to resolve this issue.
How to fix TECSYSTEM NT935 ETH Controller if it does not switch on?
If the TECSYSTEM Controller unit doesn't switch on even with correct supply to terminals 40-42, ensure the connector is properly inserted and wires are tightened. Look for any burning signs on the connectors. After disconnecting the power, check these elements and then reconnect the power supply.
What to do if one channel is in FAULT due to FOC/FCC in TECSYSTEM Controller?
If one of the three/four channels on your TECSYSTEM Controller is in FAULT due to FOC/FCC, check the connections of the Pt100 sensors. Also, consult the instructions regarding measurement signal transfer and temperature sensor diagnostics.
Why does TECSYSTEM NT935 ETH display 'ECH' when turning on?
If the display of your TECSYSTEM Controller shows “ECH” when turning on, it means strong interference has damaged the stored data.
How to solve CH4 FAULT due to FOC in TECSYSTEM NT935 ETH Controller?
If CH4 is in FAULT because of FOC (and only the 3 Pt100 sensors are connected) on your TECSYSTEM Controller, this could be due to a programming error of the CH4 / YES control unit. Check and repeat the programming, selecting CH4 / NO.
General| Brand | TECSYSTEM |
|---|---|
| Model | NT935 ETH |
| Category | Controller |
| Language | English |
Guidelines for safe power supply connection and protection against liquids.
Electrical supply range and input types supported by the unit.
Details on alarm, fault, and fan output relays, plus Ethernet capability.
Overview of temperature control, thresholds, and advanced functions.
Description of the unit's display and various status indicator LEDs.
Details on the function of each button for operation and mode selection.
Overview of terminal block numbering and connection types.
Detailed information on the unit's universal power supply capabilities.
Control of alarms, ventilation, and the behavior of the fault contact.
Procedure to enter programming and restore default values.
Setting alarm and trip temperature thresholds for channels.
Configuring fan control and channel 4 settings.
Guidelines for installing and configuring Pt100 sensors.
Rules for cabling and signal transfer to ensure accurate measurements.
How the unit diagnoses sensor faults like short-circuit or interruption.
Details on controlling fans based on temperature or ambient conditions.
Operating notes and data transmission rules for Modbus TCP communication.
Explanation of supported Modbus function codes for reading and writing.
Rules and considerations for remote programming via Modbus.
Table detailing Modbus register addresses for information and commands.
Modbus registers for system settings, status, and fan control.
Modbus registers specifically for managing temperature-based fan control.
Modbus registers for reading temperature data from channels 1 through 4.
Step-by-step guide to connect to the unit using the Telnet screen.
Accessing and navigating the IP parameter programming menu via Telnet.
Procedure for changing the device's IP address and default gateway.
Procedure for changing the Netmask and Telnet configuration password.
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