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Troubleshooting
The motor does not rotate.
Category
Parameters
Wiring
Installation
Causes
The control mode selected is not
correct.
The internal velocity command
(switching between internal and
external commands) does not
work.
The torque limit inhibition setting
is not correct.
The torque limit has been set to 0.
The zero speed clamp is ON, so
the motor does not operate.
The circuit for CW/CCW overt-
ravel inhibit is open.
CN I/F Servo-ON signal is not
received.
CN I/F Counter clear is ON
(shorted).
CN I/F command pulse input
inhibit is active, so the motor
does not operate.
Bearing lock
Countermeasures
Check the value of Pr02 (control mode set-up).
0: position control, 1: velocity control, 2: torque control
Check the value of Pr05 (Internal speed swiching).
0: At analogue velocity command set-up,
Change the value to 1 or 2.
Check the value of Pr03
(Analog torque limit inhibit).
0: torque cannot be produced, so the motor does
not rotate.
Change the value to 1.
Check the value of Pr5E (torque limit set-up).
Change the value to 300 (default).
Check the value of Pr06 (ZERPSPD input selection).
Change the value to 0. If the value is 1, the zero
clamp function is valid. If you desire to set the pa-
rameter to 1, enable the zero speed clamp input,
and adjust the wiring so that the zero speed clamp
input can be turned on correctly.
Check the value of Pr04. If the value is 0, connect
between CN I/F pins 9 and 41, and 8 and 41.
Connect (short circuit) between CN I/F pins 29 and
41.
Disconnect between CN I/F pins 30 and 41.
Check the value of Pr43. If the value is 0, connect
between CN I/F pins 33 and 41. If the value is 1,
the command pulse input inhibition is disregarded,
so the motor will rotate according to command
pulses.
Turn off the power. Disconnect the motor. Rotate
the motor shaft by hand to make sure that the mo-
tor rotates
freely. If the motor is fitted with an electromagnetic
brake, rotate the shaft by hand while applying a volt-
age
(24VDC) to the brake. If the motor does not rotate,
consult the sales agent to repair it.
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