Specialized Concentrated Focused
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92
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Maintenance
4.3 Common Troubleshooting
4.3.1 What should you do if the spindle does not rotate?
1) Check if there is an error in the software. Press [Spindle Start] button and see if the dot before the
output port
“spindle start-up” in [Diagnosis] function section becomes green. If it does, the software
works normally.
2) Test whether the analog voltage output is normal between SVC and GND with a multimeter. If not,
check if the connection cable of terminal board becomes loose. If not loose, check if there is an error
in the system.
3) Check whether the parameter setting of transducer is right, the spindle and transducer has been
damaged and the wiring of the spindle and transducer is correct.
4.3.2 What should you do if an axis does not move?
1) Check if the parameter setting of servo driver is correct (like setting control mode as position control,
selecting pulse input port for Panasonic driver, etc.).
2) Check if the servo cable of this axis is well contacted at the joint with system host machine and
servo driver.
3) Check if something is wrong with servo driver, motor cable, servo cable or control system (e.g.
exchange servo cable and servo driver with those of other axes working normally).
4.3.3 What should you
do if servo motor of Z brake can’t be
opened?
Start the system and power on machine tool (eliminating system alarm signal), and see if the brake
output indicator lamp on the terminal board turns light.
1) If so, test whether there is 24V voltage between brake output ports (BRAKE-COM) with a multimeter.
If there is 24V voltage, check whether the wiring of motor brake cable is correct. The motor brake
cable should be connected to brake output port on terminal board directly.
2) If not, directly conduct the brake input ports (BK+, BK-) with a conducting wire. If it lights at this time,
check whether the servo driver is enabled, the parameter setting related to brake output of servo
driver is right, and break output line of driver is correctly wired to terminal board (black line is wired
to BK-, and only BK+ is connected to with only one line).
