Hitachi RPIL-1.0PNN1DH Service Manual page 31

2. TROUBLESHOOTING
Table 3 Analysis of the driving board fault [1.0/1.5/2.0HP(9K/12K/18K)]
Fault
Fault description
code
1 Inverter DC voltage overload fault 1. Power supply input is too high
2 Inverter DC low voltage fault
3 Inverter AC current overload fault
4 Out-of-step detection
Loss phase detection fault (speed
5
pulsation)
Loss phase detection fault (current
6
imbalance)
7 Inverter IPM fault (edge)
8 Inverter IPM fault (level)
9 PFC_IPM IPM fault (edge)
10 PFC_IPM IPM fault (level)
11 PFC power detection of failure
PFC overload current detection of
12
failure.
13 DC voltage detected abnormal .
PFC LOW voltage detected
14
failure.
AD offset abnormal detected
15
failure.
16 Inverter PWM logic set fault.
17 Inverter PWM initialization failure
18 PFC_PWM logic set fault.
19 PFC_PWM initialization fault.
20 Temperature abnormal.
Shunt resistance unbalance
21
adjustment fault
22 Communication failure.
23 Motor parameters setting of failure Initialization is abnormal.
25 EE data abnormal
26 DC voltage mutation error
D axis current control error
27
28 Q axis current control error
Saturation error of d axis current
29
control integral
Saturation error of q axis current
30
control integral
Possible reasons for abnormality
or too low;
2. Driver board fault.
1. Compressor phase lost；
2. Bad driver board components；
3. The compressor insulation fault.
1. System overload or current
overload;
2. Driver board fault.
3. Compressor oil shortage,
serious wear of crankshaft ;
4. The compressor insulation fault.
1. The power supply is not stable;
2. Instantaneous power off;
3. Driver board failure.
1. System overload, current is
too high;
2. Driver board fails;
3. PFC fails.
1. Input voltage is too high or too
low;
2. Driver board fails.
Driver board fails.
1. Communication wire connection
is not proper;
2. Driver board fails;
3. Control board fails.
Driver board EEPROM is abnormal 1. Change EEPROM；
1. Power input changes suddenly
2. Driver board fails.
1. System overload, phase current
is too high;
2. Driver board fails.
1. System overloads, phase
current is too high；
2. Driver board fails.
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
29
How to deal with
1. Check power supply；
2. Change driver board.
1. Check compressor wire
connection;
2. Change the driver board;
3. Change compressor.
1. Check the system.
2. Change the driver board;
3. Change the compressor;
4. Change the compressor.
1. Check the power supply.
2. No need to deal with.
3. Change the driver board.
1.Check the system;
2.Change the driver board;
3.Change the PFC.
1. Check the power supply;
2. Change the driver board.
Change the driver board.
1. Check the wiring;
2. Change the driver board;
3. Change the control board.
Reset the power supply.
2. Change the driver board.
1.Check power supply, to provide
stable power supply;
2.Change driver board.
1. Check system to see if it works
normally.
2. Check stop valve to see if it is
open;
3. Change the driver board.
1. Check system to see if it works
normally.
2. Check stop valve to see if it is
open;
3. Change the driver board.
1. Check system to see if it works
normally.
2. Check stop valve to see if it is
open;
3. Change the driver board.
1. Check system to see if it works
normally.
2. Check stop valve to see if it is
open;
3. Change the driver board.