GSK DA98D - Page 50

DA98D User Manual
39
①One phase of U, V and W is
disconnected.
②Wrong connection of encoder.
Examine wire connection.
Occur when
switching on
control
power
Failure in circuit board. Replace servo drive unit.
Disconnection of brake resistance. Re-wiring.
14
Braking
failure
Occur during
motor
operation
①Damaged brake transistor.
②Internal brake resistance is
damaged.
Replace servo drive unit.
Insufficient capacity in the brak
e
loop.
①Reduce stop/start frequency.
②Reduce
acceleration/deceleration time.
③Reduce torque limiting value.
④Reduce load inertia.
⑤Replace drive unit and moto
r
of greater frequency.
14
Braking
failure
Occur during
motor
operation
Excessively high main
circuit power voltage.
Examine main circuit.
Damaged encoder. Replace motor.
Wrong connection of encoder. Examine wire connection.
15
Counting
Error of
Encoder
Bad ground contact. Correct ground contact.
20
EEPROM
Error
Damaged chip or circuit board.
Replace servo drive unit.
.After repair, first reset driver
model (parameter No.1), then
restore default parameter
value.
30
Z Pulse
Losing in
Encoder
Z pulse does not exist; damaged
encoder
Bad cable
Bad cable shielding
Bad connection between shielded
wire and shielding layer
Failure in encoder’s interface
circuit
Replace encoder
Examine encoder’s interface
circuit
31
UVW
Signal
Error in
Encoder
Damaged UVW signal of encoder
Damaged Z signal of encoder
Bad cable
Bad cable shielding
Bad connection between shielded
wire and shielding layer
Failure in encoder’s interface
circuit
Replace encoder
Examine encoder interface
circuit
32
Code
Violation
of
Encoder’s
UVW
Signal
Damaged UVW signal of encoder
Bad cable
Bad cable shielding
Bad connection between shielded
wire and shielding layer
Failure in encoder’s interface
circuit
Replace encoder
Examine encoder interface
circuit