Westinghouse WHU09DHA21S, Руководство по обслуживанию, Страница: 44 / 97

Table 3 Drive fault code ( 9K/12K/18K )
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 the 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 the 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 off ;
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 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 abnormal Driver board EEPROM is abnormal
1. Change EEPROM
；
2. Change the 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 driver board.
27 D axis current control error
1. System overload , phase current
is too high;
2. Driver board fail s.
1. Check system to see if it works
normally.
2. Check stop valve to see if it is
open;
3. Change the driver board.
28 Q axis current control error
1. System overload s , phase
current is too high
；
2. Driver board fail s.
29 Saturation error of d axis current
control integral
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fail s.
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 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.
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