[Cause]
The duplicated safety signals are inconsistent. SRVO-230 occurs when the contact connected on chain 1 is closed and the contact connected on chain 2 is open. SRVO-231 occurs when the contact on chain 1 is open and the contact on chain 2 is closed. When a chain abnormality is detected, eliminate its cause and clear the alarm by the method shown below. The first and second numbers in the alarm message are alarm diagnostic information. In a system with multiple safety I/O devices, the number of the safety I/O device where the alarm occurred is displayed at the end of the alarm message, as in (1). The safety I/O device number can be checked on the DCS Safety I/O Device interface.
[Countermeasures]
1. Check the alarm history interface [4 Alarm / History], and if it occurs with any of the operation panel emergency stop, teach pendant emergency stop, and safety switch, release the emergency stop button and press it again. In the case of a safety switch, temporarily hold the safety switch and release it again. If "SRVO-236 chain abnormality has been resolved" is displayed through this operation, the chain abnormality status has been resolved. Release the emergency stop button and safety switch, and press the RESET button.
2. If the alarm cannot be cleared, it may be caused by a failure of related components. Repair the control device in accordance with the instructions corresponding to the control device used
Take corresponding countermeasures under "Troubleshooting based on alarm codes" in the manual.
After taking countermeasures, perform the operation to release the chain abnormal state.
1) Temporarily press the emergency stop button on the teaching pendant or operation panel, and then release it.
2) Press F4 "Reset" on the alarm occurrence screen [4 Alarm].
3) Press the RESET button.SERVO Chain 2 Exception %x, %x %s
[Cause]
The duplicated safety signals are inconsistent. SRVO-230 occurs when the contact connected on chain 1 is closed and the contact connected on chain 2 is open. SRVO-231 occurs when the contact on chain 1 is open and the contact on chain 2 is closed. When a chain abnormality is detected, eliminate its cause and clear the alarm by the method shown below. The first and second numbers in the alarm message are alarm diagnostic information. In a system with multiple safety I/O devices, the number of the safety I/O device where the alarm occurred is displayed at the end of the alarm message, as in (1). The safety I/O device number can be checked on the DCS Safety I/O Device interface.
[Countermeasures]
1. Check the alarm history interface [4 Alarm / History], and if it occurs with any of the operation panel emergency stop, teach pendant emergency stop, and safety switch, release the emergency stop button and press it again. In the case of a safety switch, temporarily hold the safety switch and release it again. If "SRVO-236 chain abnormality has been resolved" is displayed through this operation, the chain abnormality status has been resolved. Release the emergency stop button and safety switch, and press the RESET button.
2. If the alarm cannot be cleared, it may be caused by a failure of related components. Repair the control device in accordance with the instructions corresponding to the control device used
Take corresponding countermeasures under "Troubleshooting based on alarm codes" in the manual.
After taking countermeasures, perform the operation to release the chain abnormal state.
1) Temporarily press the emergency stop button on the teaching pendant or operation panel, and then release it.
2) Press F4 "Reset" on the alarm occurrence screen [4 Alarm].
3) Press the RESET button.