Hitachi RCI-3.0UFE1NH, Service Manual

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2
.TROUBLESHOOTING
Table 3 Drive fault code (3.0/3.5HP)
Fault
code
Fault
d
escription Possible
r
eason
s for a
bnormality How to
d
eal
w
ith
1 Inverter DC voltage overload fault
1. Power supply input is too high
or too low;
2. Driver board fault.
1. Check power supply
;
2. Change driver board.
2 Inverter DC low voltage fault
3 Inverter AC current overload fault
4 Out-of-step detection
1. Compressor phase lost
;
2. Bad driver board components
;
3. The compressor insulation fault .
1. Check compressor wire
connect ion
;
2. Change driver board ;
3. Change compressor
.
5 Loss phase detection fault (speed
pulsation)
6 Loss phase detection fault (current
imbalance)
7 Inverter IPM fault (edge)
1. System overload or current
overload;
2. Driver board fault ;
3. Compressor oil shortage,
serious wear of crankshaft ;
4. The compressor insulation fault.
1. Check the system ;
2. Change driver board;
3. Change the compressor;
4. Change the compressor.
8 Inverter IPM fault (level)
9 PFC_IPM IPM fault (edge)
10 PFC_IPM IPM fault (level)
11 PFC power detection of failure
1. The power supply is not stable;
2. I nstantaneous power cut ;
3. Driver board failure.
1. Check the power supply ;
2. No need to deal with ;
3. Change the driver board.
12 PFC overload current detection of
failure
1. System overload, current is
too high;
2. Driver board fail s
;
3. PFC fail s
.
1.Check the system;
2.Change the driver board;
3.Change the PFC.
13 DC voltage detected abnormal 1. Input voltage is too high or too
low;
2. Driver board fail s
.
1. Check the power supply ;
2. Change the driver board.
14 PFC LOW voltage detected
failure
15 AD offset abnormal detected
failure
Driver board fail s . Change the driver board.
16 Inverter PWM logic set fault
17 Inverter PWM initialization failure
18 PFC_PWM logic set fault
19 PFC_PWM initialization fault
20 Temperature
is
abnormal
21
Shunt resistance unbalance
adjustment fault
22 Communication failure
1. Communication wire connect ion
is not proper ;
2. Driver board fail s ;
3. Control board fail s .
1. Check the wiring ;
2. Change the driver board ;
3. Change the control board.
23 Motor parameters setting of failure Initialization is abnormal. Reset the power supply.
25 EE data is abnormal Driver board EEPROM
is
abnormal
.
1. Change EEPROM
;
2. Change driver board.
26 DC voltage mutation error
1. Power input changes suddenly ;
2. Driver board fail s.
1.Check power supply
,
to provide
stable power supply
;
2.Change
the
driver board.
27 D axis current control error
1. System overload
,
phase current
is too high;
2. Driver board fail s.
1. Check if the system is normal ;
2. Check if the stop valve is open;
3. Change the driver board.
28 Q axis current control error
1.
System overload , phase current
is too high ;
2. Driver board fail s.
1. Check if the system is normal ;
2. Check if the stop valve is open;
3. Change the driver board.
29 Saturation error of
D axis current
control integral
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fail s.
1. Check if the system is normal ;
2. Check if the stop valve is open;
3. Change the driver board.
30 Saturation error of
Q
axis current
control integral
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fail s .
1. Check if the system is normal ;
2. Check if the stop valve is open;
3. Change the driver board.
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