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Chapter 7 Troubleshooting
H
- 125 -
7-2-2
Improper motions in speed and torque control
No rotation in speed and torque control
Is the load
inertia proper?
Decrease the load
inertia.
N
Y
Previous page
Does gain
adjustment
succeed?
N
Y
Correct the gain
properly.
N
Does rattle or
resonance occur
in the mechanical
system?
Y
Improve the
mechanical system.
Replace the actuator
or driver.
Is the front
panel LED on?
Are NFB and
MS on?
・
Power failure
・
AC/DC Power failure
・
Wrong wiring
N
N
Y
Is AC/DC
Power off with
power on
sequence?
N
Driver failure
Y
Y
N
Turn NFB and MS,
AC/DC Power ON.
Is an alarm
indicated?
Refer to section 7-1:
“alarm and
diagnostic tips.”
Y
N
Y
Note:
NFB: No-fuse breaker
MS: Main power switch
N
Is [parameter]
→
[17,18:
current limit]
correct?
Correct [parameter]
→
[17,18: current limit].
Y
N
N
Loose
screws in
connection,
broken wire?
Y
Y
N
Y
Next page A.
Take care of safety while
rotating the actuator by
hand.
Is the power
normal?
Can actuator
be rotated by
hand (by using
arms)?
・
Tighten screws.
・
Replace motor cable.
Turn NFB and
MS ON.
Speed
command
coming?
Input it.
Next page B.
Start
Содержание HA-680 Series
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