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Operation Manual of INVT CHS100 AC Servo Drive 9 Fault Processing
125
No.
Code
Name
Causes
Countermeasures
fault 2.
The
powering-up
snubber relay has not
picked up
of the grid
2. Replace the drive
9 Er-oL Overload
fault
1. Run overload for a long
period of time
2. The load is too heavy in
a short period of time
1. Replace with the drive
and motor of higher
power
2. Replace with the drive
and motor of higher
power
10 Er-LnE
Line abnormality
fault
1. U, V, W phases of the
motor are connected
reversely
1. Check that the phases
of the motor cable are
connected correctly
11 Er-oS Overspeed
fault
1. The motor speed is too
high
2. Overspeed of the motor.
U, V, W phases of the
motor are connected
reversely
1. Replace with a motor
of higher speed or check
the parameter settings
2. Check that the phases
of the motor cable are
connected correctly
12 Er-oH1
Drive
overtemperature
fault
1. The temperature of the
IGBT module of the drive is
too high
1. Improve the
ventilation or replace
with a servo drive of
higher power
13 Er-oC3
Software
overcurrent fault
1. U, V, W phases of the
motor are connected
reversely
2. Inappropriate
parameters cause system
divergence
3. Too short ACC/DEC time
during starting/stopping
4. Too large instant load
1. Check that the phases
of the motor cable are
connected correctly
2. Adjust the loop
parameters to stabilize
the system. Adjust the
value of PA.12 smaller
3. Set the ACC/DEC
time appropriately longer
4. Replace with a drive
of higher power
14 Er-oE Over-pulse
fault
1. Number of the retention
pulses is too large
1. Set the gain
parameters of the
position loop higher or
set the position
feed-forward gain higher
15 Er-cTE
Communication
fault
1. Too high communication
fault rate
2. Broken communication
link
1. Try to decrease the
communication
interference
2. Check the connection
of the communication
cable
16 Er-oT
Write/read
overtime fault
1. Overtime when
reading/writing EEPROM
2. Damaged EEPROM
1. Replace the drive
2. Replace the drive
17 Er-bcE
Brake overload
fault
1. The power of the built-in
braking resistor is relatively
low
1. Connect an external
braking resistor of higher
power