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What is the maximum number of devices for Omron E5EC communication path?
If too many communications devices are connected to the communications path on your Omron Temperature Controller, when 1:N, RS-485 communications are used, a maximum of 32 nodes may be connected, including the host node.
What type of communication cable should I use for Omron Temperature Controller?
If the wrong communications cable has been used for your Omron Temperature Controller, use shielded twisted-pair cable for the communications cable.
What is the maximum length of the communication cable for Omron E5EC?
If the communications cable is too long for your Omron Temperature Controller, remember that the total cable length is 500 m maximum for RS-485 communications.
What to do if temperature error is large on Omron Controller (S.Err display)?
If you are seeing a large temperature error or an S.Err display on your Omron Controller, it may indicate an input type mismatch. Check the sensor type and reset the input type correctly.
What to do if the Omron E5EC Temperature Controller communication cable is broken?
If the communications cable is broken on your Omron Temperature Controller, replace the cable.
Why is the communication indicator on my Omron E5EC PLC not lit?
If the communications indicator on the PLC is not lit, it could be due to several reasons: * The power supply is not turned ON to the E5@C Controller with communications unit number 0. * The wiring is not correct. * The communications settings are not the same between the PLC and the E5@C. * The E5@C was moved to the initial setting level (setting area 1). * Check the cycle time of the PLC. If it is longer than the value set for the Receive Data Wait Time parameter, change the set value of this parameter so that it is longer than the cycle time.
What to do if the Omron Temperature Controller communication line is disconnected?
If the communications line has become disconnected on your Omron Temperature Controller, connect the communications line securely and tighten the screws.
How to fix incorrect communications wiring on Omron E5EC Temperature Controller?
If the communications wiring is not correct on your Omron Temperature Controller, correct the wiring.
What to do if the temperature is not rising on my Omron Temperature Controller?
If the temperature isn't rising on your Omron Temperature Controller, it might be due to the specified operation being unsuitable for the required control. The default is reverse operation, so select either forward or reverse operation depending on what you need. Also, check the heater for burnout or deterioration.
Why is my Omron Temperature Controller overshooting, undershooting, or hunting?
Overshooting, undershooting, or hunting can occur with the Omron Temperature Controller if ON/OFF control is enabled. To resolve this, select PID control and execute either ST (self-tuning) or AT (auto-tuning). When using self-tuning, turn ON the power supply to the Digital Controller and load (heater, etc.) at the same time, or turn ON the load power supply first. Also, check if the control period is too long compared to the speed of temperature changes and shorten it if necessary. Unsuitable PID constants can also cause this issue; set appropriate PID constants using either autotuning or manual settings. Finally, investigate any errors detected by the HS alarm function and use breeder resistance if leakage current is the problem.
General| Mounting Type | Panel Mount |
|---|---|
| Display Resolution | 0.1°C or 1°C |
| Control Method | ON/OFF |
| Input Type | Thermocouple, RTD, Analog voltage |
| Supply Voltage | 100 to 240 VAC |
| Output Type | Relay, Voltage, Current |
| Size | 48 x 96 mm |
| Control Output | Relay, Voltage, Current |
| Alarm Output | Relay |
| Communication | RS-485 |
| Ambient Operating Temperature | -10 to 55°C |
| Ambient Operating Humidity | 25 to 85% RH |
| Protection Rating | IP20 |
