Description
The periodically executed self-diagnostic function for the contactor output signals detected an error.
Subcode description
The meaning of each sub code is
as follows:
CPU1 1:SFRON1
CPU1 2:SFRON2
CPU1 3:SFRON3
CPU1 4:SFRON4
CPU2 1:SFRON1
CPU2 2:SFRON2
CPU2 3:SFRON3
CPU2 4:SFRON4
Causes and remedies
| Cause | Remedy |
|---|---|
| Cable (abnormal) | 1. Reset the alarm. 2. If the alarm recurs, check the connection between the ASU03 unit and APU01 unit, checking for loose connectors and cable continuity. • ASU03-CN222, CN223, CN224, CN225 • APU01-CN604 • Cable between APU and ASF01 |
| ASF01 board (abnormal) | 1. Reset the alarm. 2. If the alarm recurs, replace the ASF01 board. For a system with multiple ASF01 boards connected, replace the ASF01 board connected to the signal that generated the alarm. |
| ASU03 unit (abnormal) | 1. Reset the alarm. 2. If the alarm recurs, replace the ASU03 unit. For a system with multiple ASU03 units connected, replace the ASU03 unit connected to the signal that generated the alarm. |
| APU01 unit (abnormal) | 1. Reset the alarm. 2. If the alarm recurs, replace the APU01 unit. |
| Other | If the alarm occurs again after implementing the countermeasures, contact our service department and describe the circumstances when CMOS.BIN was saved (operating procedure, etc.). |