GSK DA98A - Page 50

DA98A AC Servo Drive Unit User Manual
40
Encoder is damaged. Change the motor.
Encoder connection is
wrong.
Check the connection.
15
Encoder
counting error
Grounding is not good. Do right grounding.
Circuit board fault.
Change the AC servo drive
unit.
Occuring as
control power
supply is
powered on
Parameter setting error. Correctly set the
parameters.
Long r
rated
unning exceeding
torque.
Check the load.①
Reduce the on② -off
frequency.
Reduce the torque limit.③
Change the drive unit ④
and motor with larger
power ones.
16
Motor heat
overloading
Occuring as
motor is
running
Mechanical transmission is
not good.
Check the mechanical
part.
The control power of input
is unsteady.
Check the control power.
19 Thermal reset
It is disturbed.
Increase the circuit filter.①
Be away from the ②
interference source.
20
IC4 (EEPROM)
error
Chip or circuit board is
damaged.
Change the AC servo drive
unit.
After restoring, the model
of the AC servo drive unit
should be set again,
(parameter No.1), then
recover the default
parameters.
21
IC3(PWM chip)
error
Chip or circuit board is
damaged.
Change the AC servo drive
unit.
22
IC2(CODER
chip) error
Chip or circuit board is
damaged.
Change the AC servo drive
unit.
23
IC7(A/D chip)
error
①Chip or circuit board is
damaged.
② Current sensor is
damaged.
Change the AC servo drive
unit.
30
Encoder Z pulse
lost
①Z pulse doesn’t exist, and
encoder is damaged.
②Cable is inferior.
③Cable shielding is not
good.
④Shield grounding is not
well connected.
⑤Encoder interfacing
circuit is at fault.
①Change the encoder.
②Check the encoder
interfacing circuit.