Why does the Sun Yeh Electrical Controller actuator work abnormally and the motor gets hot when controlling multiple actuators?
When controlling two or more actuators, abnormal operation and a hot motor can result from a parallel connection. Install an Isolating Relay Module (optional) to resolve this.
Why does LD6 go on in Sun Yeh Electrical OM Controller?
If LD6 is illuminated, it indicates that the motor thermal protector has been activated. This can occur if the duty cycle has exceeded its rated limit or if the contact of the motor thermal protector (MOT) is disconnected.
What to do if LD7 goes on in Sun Yeh Electrical Controller?
If the LD7 indicator is on, it signifies a signal output short circuit. To resolve this, check if the signal output has reversed polarity, ensuring that the negative pole is connected to terminal #11 and the positive pole to terminal #12. Another potential cause is reversed polarity in the 2-10 V input signal. If using a 2-10V input, make sure the negative pole connects to terminal #6 and the positive pole to terminal #7.
What to do if LD5 goes on in Sun Yeh Electrical OM Controller?
If LD5 is lit, it indicates an incorrect signal type has been inputted. For example, you might have a 2-10 V preset but are inputting a 4-20 mA signal, or vice versa. Verify if switch 1 is set correctly for the type of input signal you're using. Another reason could be inputting a voltage exceeding the rated voltage. For example, you might have a 2-10 V preset but are inputting 13.5V. Verify if switch 1 is set correctly for the type of input signal you're using.
How to fix LD3 if it does not go on in Sun Yeh Electrical Controller?
If LD3 doesn't light up, it could be due to several reasons. First, check the power supply and the wires connected to terminals #4 & #5. Second, verify the actuator wiring, ensuring lines #8 and #9 of the potentiometer are correctly connected. Third, the modulating controller may have failed.
What to do if LD4 goes on in 24V Sun Yeh Electrical OM Controller?
If LD4 illuminates on a 24V unit, it means the voltage is under 20.4V. Therefore, verify that the input voltage is within the allowable voltage deviation.
What does it mean when LD9 goes on in Sun Yeh Electrical OM Controller?
LD9 indicates that the Sun Yeh Electrical Controller is in local setting mode, setting the position for open and close. After completing the settings, press the “SET” button to quit.
What causes a signal failure in Sun Yeh Electrical OM Controller due to reversed polarity?
To resolve a signal failure due to reversed polarity, verify if the negative pole of the signal input is connected to terminal #6 and the positive pole to terminal #7.
How to fix non-functioning modulating control on Sun Yeh Electrical OM?
If the modulating control isn't functioning, it might be due to a faulty modulating board, which could cause the actuator to not operate or only operate in one direction; replace the modulating board. Ensure that the input signal is correct.
What to do if no LED lights up on my Sun Yeh Electrical OM Controller PCBA after turning it on?
If none of the LED indicators light up on the PCBA after supplying power, the fuse may have blown, so replace it with a new one. Another possibility is a faulty PCBA, which would also require replacement. Also, verify you are using the correct supply voltage.
General| Brand | Sun Yeh Electrical |
|---|---|
| Model | OM Series |
| Category | Controller |
| Language | English |
Safety guidelines for installation, maintenance, repair, and operation.
Crucial checks and precautions for actuator installation.
Highlights of the OM series electric valve actuators.
Visual identification of actuator components.
Detailed technical information including models, torque, and weight.
Step-by-step guide for installing the manual handwheel on the actuator.
General instructions for setting up the actuator after mounting.
Detailed steps for adjusting mechanical end stops and travel cams.
Explanation of optional torque switch functionality and setup.
Identification of components on the modulating control board.
Basic programming concepts for modulating control functionality.
How to adjust the sensitivity switch for optimal performance.
Default sensitivity switch settings for various models.
Solutions for motor not operating, overheating, or abnormal behavior.
Solutions for valve operation failures, LED indicators, and capacitor issues.
To Next Page
