5 System Commissioning
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157
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Output state of RUN and brake contactors and motor state
No-load Auto-tuning With-load Auto-tuning
Synchronous
Motor
Asynchronous
Motor
Synchronous
Motor
Synchronous
Motor Static
Auto-tuning
Asynchronous
Motor
RUN contactor Working Working Working Working Working
Brake contactor Not working Not working Working Not working Not working
Motor Rotate Rotate Rotate Not rotate Not rotate
Possible faults and handling
Auto-tuning
Fault
Fault
Symptom
Handling Method
Auto-tuning
fails.
Fault
E19 is
reported.
Check whether the encoder cable is broken; replace a new PG card
and perform auto-tuning again.
Check whether the encoder cables are broken; replace a new PG
card and perform auto-tuning again.
Auto-
tuning
fails,
and fault
Err20 is
reported.
a.Check whether the encoder cables and strong current circuit are
in separate troughs.
b.Check whether the brake is released completely. If not, check
whether power supply of the brake and power circuit are normal.
c.Check whether the encoder cables are broken.
d.Check whether there is interference on the encoder cables by
observing whether the encoder cables are too close to the motor
power cables.
e.Check whether the encoder is in good condition and installed
securely.
The motor
wiring
sequence is
incorrect.
Err20 and
Err33
may be
reported.
Exchange the motor cables. Then, perform auto-tuning again. The
R
S
T
PB
U
V
W
POWER MOTOR
R
S
T
PB
U
V
W
POWER MOTOR
Note: Fault symptoms
1. During no-load auto-tuning, if the motor wiring sequence is
incorrect,
Err20 (E0-00) with fault subcode 3 (E0-01) will be reported.
2. During with-load auto-tuning, if the motor wiring sequence is
incorrect,
the synchronous motor will jitter abnormally during auto-tuning,
Err33 is reported, and auto-tuning stops.
For the asynchronous motor, there is no prompt during auto-
tuning, but Err33 is reported during running at inspection speed.
Auto
-
tuning Mode
Working
Mode
Controlled
Object