TS
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I Special servo drive for hybrid electro-hydraulic system of injection molding machine User Manual
54
Chapter 5 Alarm and diagnosis of servo drive
Chapter 5 Alarm and diagnosis of servo drive
5.1 Faults and Solutions
TS
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I serial driver is equipped with complete protection functions to provide efficient protection while
utilizing its performance sufficiently. Some failure instructions may be displayed during operation.
Compare the instructions with the following table and analyze, decide the causes and solve failures.
For damages on units or questions that can’t be resolved, please contact with local distributors/agents,
service centers or manufacturer for solutions.
Failure
No.
Failure
code
Failure description
Potential causes
Solutions
Low grid voltage
Check the input power source
Startup too fast during motor operation
Restart after the motor stops
rotating
Rotating inertial of load is very large
and shock load is very heavy
Increase the acceleration time
and reduce the occurrences of
sudden change of load
Improper setting of motor parameters
Set motor parameters properly
If any special motor is used?
Learn the motor's parameters
1 E.oc1
Over current protection
when acceleration
operation
The motor's power goes beyond the
driver's maximum drive current
Replace with drive with proper
model
Low grid voltage
Check input power supply
Too big rotating inertial of load
Choose appropriate energy
braking components
Improper setting of motor parameters
Set motor parameters properly
If any special motor is used?
Learn the motor's parameters
2 E.oc2
Over current protection
when deceleration
operation
The motor's power goes beyond the
driver's maximum drive current
Replace to drive with proper
model
If any special motor is used?
Learn the motor's parameters
Improper setting of motor parameters
Set motor parameters properly
3 E.oc3
Over current protection
when operation with
constant speed
The motor's power goes beyond the
driver's maximum drive current
Replace to drive with proper
model
Motor short to ground
Check motor wiring
Abnormal input power supply voltage
Check input power supply
4 E.oV1
Over voltage protection
when acceleration
operation
Fast start-up again when motor
Start again after the motor stops
Motor short to ground
Check motor wiring
5 E.oV2
Over voltage protection
when deceleration
operation
If the braking unit operates in open loop
Check the braking component
Motor short to ground
Check motor wiring
Abnormal input power supply
Check input power supply
6 E.oV3
Over voltage protection
when operation with
constant speed
If the braking unit operates in open loop
Check the braking component
7
E.PCU
Interference protection
Severely Interfered by exterior signal
Ask professional technicians to
maintain
Driver's internal connector goes loose
Ask professional technicians to
maintain
Abnormal internal switching power
supply
Seek for technical support
8 E.rEF
Abnormal comparison
benchmark
Abnormal signal sampling and
comparison circuit
Seek for technical support
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