The User Manual of JAC200 Series General Frequency Converter
- 161 -
Fault Name
Display
Failure causes analysis
Failure handling measures
3. The motor overspeed detecting
parameter F9-67 and F9-68 are not
unreasonably set
parameter
based
on
actual
situation
Motor
overheat
Err45
1. Loose temperature sensor wiring
2. Motor temperature is too high
1. Inspect temperature sensor wiring
and troubleshoot the failure
2. Reduce carrier frequency or adopt
other heat emission measures to
make thermal management to the
motor
8.4 Failure alarm and measures
The following failure conditions may be met when using the frequency converter. Please see the following
methods for simple failure analysis:
Table 9-2 Common Failure and Handling Methods
No.
Failure
phenomenon
Possible reasons
Solutions
1
No display when
power on
No or too low network power;
Switching power failure on the drive
board of frequency converter;
The rectifier bridge damages;
The buffer resistance of frequency
converter damages;
Control panel and keyboard failure;
Disconnection among control panel,
drive board and keyboard;
Inspect input power;
Inspect Bus voltage;
Pull and plug 8-core and 28-core
flat cable once again;
Seek factory service;
2
Display “Err23”
alarm when
power on
Short circuit to earth for motor or
output line;
Frequency converter damages;
Use
megger
to
measure
the
insulation of motor and output line;
Seek factory service;
3
Frequently report
Err14 (module
overheating)
failure
Too
high
setting
for
carrier
frequency;
Fan damages or air channel is
blocked
The
internal
components
of
frequency
converter
damage
(thermocouple or others)
Reduce carrier frequency (F0-15);
Replace fan and clean air channel;
Seek factory service;
4
The motor
Motor and motor line;
Reconfirm the wiring between
