Perfect Aire 3PAMSHHQC18-MZO2, Technical & Service Manual

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1 4
.TROUBLESHOOTING
Table 3 Drive fault code (
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
connection
;
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. Instantaneous 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 fails
;
3. PFC fails
.
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 fails
.
1. Check the power supply.
2. Change the driver board.
14 PFC LOW voltage detected
failure.
15 AD offset abnormal detected
failure.
Driver board fails. 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 connection
is not proper.
2. Driver board fails.
3. Control board fails.
1. Check the wiring.
2. Change the driver board.
3. Change the control board.
23 Motor parameters setting of failure Initialization abnormal. Reset the power supply.
25 EE data abnormal Driver board EEPROM abnormal 1. Change EEPROM
；
2. Change driver board.
26 DC voltage mutation error
1. Power input changes suddenly
2. Driver board fails.
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 fails.
1. Check system if normally.
2. Check stop valve if is open;
3. Change driver board.
28 Q axis current control error
1. System overload , phase current
is too high
；
2. Driver board fails.
1. Check system if normally.
2. Check stop valve if is open;
3. Change driver board.
29 Saturation error of d axis current
control integral
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
1. Check system if normally.
2. Check stop valve if is open;
3. Change driver board.
30 Saturation error of q axis current
control integral
1. System overload suddenly;
2. Compressor parameter is
not suitable;
3. Driver board fails.
1. Check system if normally.
2. Check stop valve if is open;
3. Change driver board.
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