Cause Of Inverter Stoppage - Hitachi RAS-5HVRNM1E Service Manual

8 Troubleshooting

8.2.5 Cause of inverter stoppage

Code
Automatic Stoppage of Transistor Module
(DIP-IPM Error)
1
(Overcurrent, Undercurrent, Temperature increase)
2 Instantaneous Over Current
Abnormal Inverter Fin Thermistor
3
Electronic Thermal Activation (Inverter overcurrent)
4
Inverter Voltage Decrease (Undervoltage)
5
Over Voltage
6
7 Abnormal Inverter Transmission
Abnormal Current Detection
8
Instantaneous Power Failure Detection
9
Reset of Micro-Computer for Inverter
11
Earth Fault Detection from Compressor
12
(Only Starting)
Phase detection abnormality
13
Inverter Non-Operation
14
Inverter Non-Operation
15
16 Inverter Non-Operation
17 Communication Abnormality
Protection Device Activation (63H1)
18
Protection Detection Device Abnormality
19
Protection control code on 7-segment display
1 Protection control code is displayed on 7-segment when a protection control is activated.
2 Protection control code is displayed while function is working, and goes out when released.
3 When several protection control are activated, code number with higher priority will be indicated (see below for the
priority order).
a Higher priority is given to protection control related to frequency control than the other.
• Priority order
– High-Pressure Increase Protection
– Over Current Protection
– Cold Draft Protection
– Low-Pressure Ratio Control at Cooling Operation
b In relation to retry control, the latest retrial will be indicated unless a protection control related to frequency control
is indicated.
Code
P 0
P 1
P 2
P 3
P 4
P 5
295
SMGB0060 rev. 1- 12/2010
Cause
Protection Control
Low-Pressure Ratio Control at Cooling Operation
High-Pressure Ratio Control at Heating Operation
High-Pressure Increase Protection
Over Current Protection
IPM Fin Temperature Increase Protection
Discharge Gas Temperature Increase Protection
Cause of Stoppage
for Corresponding
Indication
Unit
during Retry
17 P7
17 P7
17 P7
17 P7
18 P8
18 P8
18 
17 P7
18 
18 
17 P7
18 
18 
18 
18 P8
18 P8
 
 
Remark
Alarm Code
53
48
54
48
06
06

51


53

55
55
55
55
02
38
8