IAI ERC2, Operation Manuals, Page: 109 / 138

99
7. Troubleshooting
Code Error name Cause/Action
0C9 Excessive motor
supply voltage
This alarm indicates that the motor supply voltage is excessive (24 V + 20%:
28.8 V or more).
Cause: [1] High voltage of the 24-V input power supply
[2] Faulty internal part of the controller
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.
0CA Overheating
The temperature around the power transistor in the controller is too high (95
q
C
or above).
Cause: [1] High ambient temperature
[2] Defective internal part of the controller
Action: [1] Lower the ambient temperature of the controller.
If the action in [1] does not apply, contact IAI.
0CC Abnormal control
supply voltage
This alarm indicates that the voltage of the 24-V input power supply is excessive
(24 V + 20%: 28.8 V or more).
Cause: [1] High voltage of the 24-V input power supply
[2] Defective internal part of the controller
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.
0CE Drop in control supply
voltage
This alarm indicates that the voltage of the 24-V input power supply has
dropped (24 V – 20%: 19.2 V or less).
Cause: [1] Low voltage of the 24-V input power supply
[2] Defective internal part of the controller
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.