Hitachi RCUE40AG2 Service Manual page 139

Troubleshooting

Alarm code

[Alarm Stop Reason]
The actual frequency is over the admissible value
of inverter order frequency.
*Alarm stop: 5 retries during 30 minutes.(only
corresponding fan is stopped, automatic restart in
10 seconds)
[Retry Code]
No code indication (indicated within the
check mode)

NOTE:
See "Inverter position detection abnormality" in the next page for fl owchart

Alarm code

[Alarm Stop Reason]
DC electricity value of inverter is over the
1.
admissible value.
Inverter temperature is increased over the limit.
2.
Error signal is detected.
3.
*Alarm stop: 5 retries during 30 minutes. (only
corresponding fan is stopped, automatic restart in 10
seconds)
[Retry Code]
No code indication (indicated within the
check mode)

NOTE:
See "Inverter position detection abnormality" in the next page for fl owchart
pag. 137
SMGB0003 rev.0 - 01/2007
 Inverter Speed Control Abnormality
1m: m=Fan No.
Inverter Excess Current Protection

1m: m=Fan No.
[PCB Monitoring Position]
FANM (Fan Module)
Abnormality
[PCB Monitoring Position]
FANM (Fan Module)
5 5