Cause Bearing defecve.
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emedy Contact us.
8.1 Inverter warnings and alarms
The inverters used to drive the dry pump can generate warnings and alarms if problems
are encountered. The inverter warning and alarm codes are displayed by the drive
keypad. The drive keypad is visible aer you remove the bracket of the cubicle fan.
Figure 18 Remove cubicle fan
1. Screws1. Screws
Table 22
Inverter alarm codes
Condion
oL2 - Drive overload on page 66
o
v - Overvoltage on page 66
oC - Overcurrent on page 66
CE - Modbus communicaon error on page 67
GF - Ground fault on page 67
LF - Output phase loss on page 67
LF2 - Output current imbalance on page 68
PF - Input phase loss on page
68
SC - Short circuit/IGBT failure on page 68
Uv1 - DC Bus undervoltage on page 68
Uv2 - Control power undervoltage on page 69
Uv3 - So charge answerback fault on page 69
EF3 - External fault(terminal S3) on page 69
dWFL - High temperature warning on page 69
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