Best E5 Series User Manual page 185

E5 User Manual
Fault Fault
code Display
11 CtC
12 GdP
13 ISF
Fault
description
overloaded under V/f control
Inappropriate V/f curve
under V/f control
Motor parameters are
improperly set
Improper setting of motor
overloaded protection
time
Motor stalled or sharp
variation of load
Long-term running of
ordinary motor at low
speed with heavy load
Abnormal connection of
control board
Switching power supply
Current
damaged
detection
abnormal
Hall device damaged
Output ground leakage
current is too big
Output connection
ground short circuit
Output
Motor insulation
ground
abnormal
short-circuit
Inverter module
protection
abnormal
Output ground leakage
current is too big
Serious voltage
imbalance among three
Input power
phases of power supply
supply
Abnormal bus
abnormal
capacitance
Abnormal input wiring of
- 181 -
Chapter 6 Trouble Shooting Easures
Causes Solutions
value
Set V/f curve correctly
Set the parameters
correctly according to
motor nameplate
Properly set the motor
overloaded protection
time
Identify the causes of
motor stalling or check
the load condition
Select variable
frequency motor
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Check motor
connection and output
ground impedance
Check the motor
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Check power grid
voltage
Seek services
Check power supply