Panasonic minas a series Operating Manual page 75

Troubleshooting
The motor does not rotate.
Category
Parameters The control mode selected is not cor-
rect.
The internal velocity command
(switching between internal and exter-
nal 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
Wiring inhibit is open.
CN I/F Servo-ON signal is not re-
ceived.
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
Installation
Causes
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 func-
tion is valid. If you desire to set the parameter 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 ac-
cording to command pulses.
Turn off the power. Disconnect the motor. Rotate the motor
shaft by hand to make sure that the motor rotates
freely. If the motor is fitted with an electromagnetic brake,
rotate the shaft by hand while applying a voltage
(24VDC) to the brake. If the motor does not rotate, consult
the sales agent to repair it.
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Countermeasures