Specifications

Chapter 7 Trouble shooting
- 137 -
7-2-2 Improper motions in speed mode
◆ No rotation
Is load
inertia
proper?
Lower load inertia
N
Y
From prior page
Gain
adjustment
possible?
N
Y
Adjust gains
correctly.
N
Is play or
resonance in
mechanism ?
Y
Improve
mechanism.
Actuator or driver
failure
Start
LED of front
panel
indicating?
Main power
OK?
Are NFB,
MS ON?
･
Power failure
･NFB or MS failure
･Wrong wiring
N
N
Y
MS open with
power ON
sequence?
N
Driver failure
Y
Recover power after
removing the cause.
Y
N
Turn NFB and
MS ON.
Alarm
indicated?
Refer section 7
-
1:
alarm and
diagnostic tips.
Y
N
Y
Note:
NFB: No-fuse breaker
MS: Main power switch
Can actuator
rotate by
hand?
N
Is [b: torque
limit]
correct?
Correct
[b: torque limit].
Y
N
Speed
command
coming?
Input it.
N
N
Loosen
screws in
connection,
broken wire?
Tighten screws.
Replace motor
cable.
Y
Y
Y
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