hpmont MONT20 User Manual

Chapter 7 Troubleshooting and Maintenance
MONT20 User Manual V1.6 53
Chapter 7 Troubleshooting and Maintenance
7.1 Troubleshooting
If fault occurs, the keypad will display the fault alarm. Meanwhile, faulty relay acts, accordingly
MONT20 stops output and the motor coasts to stop.
When fault alarm occurs, user should record the fault in detail and take proper action according to
following table.
Fault Reason Countermeasure
-Lu-
DC bus undervoltage
• Power-on initial state, power-down
end state
• Input voltage is too low
• Improper wiring leads to
undervoltage of hardware
• Normal power-on/power-down state
• Check input power voltage
• Check wiring and wire MONT20
properly
E0001
DC bus over voltage
• Input voltage is too high
• Dec. time is too short
• Improper wiring leads to
overvoltage of hardware
• Check power input
• Set proper Dec. time (F03.05, F04.05)
• Check wiring and wire MONT20
properly
E0002
MONT20 output
instantaneous
overcurrent
(hardware)
• Improper connection of MONT20
and motor
• Improper motor parameter
• Wrong encoder signal
• Improper wiring leads to
overcurrent of hardware
• Acc. or Dec. time is too short
• Connect MONT20 and motor correctly
• Set proper motor parameter (F01.00 -
F01.04)
• Check the connection of encoder and
make sure the signal is correct
• Check the system wiring and wire
properly
• Set proper Acc. time (F03.02, F04.02)
or Dec. time (F03.05, F04.05)
E0003
MONT20 output
overcurrent (software)
E0004
Encoder Z phase
signal of PMSM lost
• Auto-tuning of PMSM did not
detect Z signal
• Check encoder signal
E0006
Motor parameter
auto-tuning failed
• Improper motor parameter setting
• Improper motor wiring
• Z phade signal of encoder is lost
• Set proper motor parameter (F01.00 -
F01.04)
• Check the motor wiring and wire
properly
• Check the encoder

hpmont MONT20 Specifications

General

Brand	hpmont
Model	MONT20
Category	Controller
Language	English