Specifications

Chapter 7 Trouble shooting
- 139 -
From prior page
Command
voltage form
correct?
If there is a ripple on signal, stabilize it.
Check for electrical noise.
N
Y
Speed lower
than rated
speed?
Ad
just actuator
speed lower than
rated speed.
N
Y
Adjust gains
correctly.
Large
fluctuation in
load torque?
Lower its fluctuation.
Use higher output
actuator.
N
Y
Gain
adjustment
possible?
N
Y
Adjust gains
correctly.
N
Is the
Motor
wiring from
driver
correct?
Verify motor cable
connections.
Y
N
Is torque
limit value
too small?
Set [b: torque limit]
normal.
Y
To next page
Is load
inertia
proper?
Lower load inertia
N
Y
Gain
adjustment
possible?
N
N
Is encoder
signal
normal?
Improve grounding
and cable installation.
Use shield cable .
Y
N
Is there noise
in the
encoder
signal?
Y
Actuator failure