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(7) Corrective actions for errors
CAUTION
If an error occurs in the self diagnosis of the module or servo amplifier, confirm the check details
according to the instruction manual, and restore the operation.
If a dangerous state is predicted in case of a power failure or product failure, use a servomotor
with an electromagnetic brake or install a brake mechanism externally.
Use a double circuit construction so that the electromagnetic brake operation circuit can be
operated by emergency stop signals set externally.
24VDC
B
RA1
EMG
Servo motor
Electromagnetic
brake
Shut off with the
emergency stop
signal (EMG).
Shut off with servo ON signal OFF,
alarm, electromagnetic brake signal.
If an error occurs, remove the cause, secure the safety and then resume operation after alarm
release.
The unit may suddenly resume operation after a power failure is restored, so do not go near the
machine. (Design the machine so that personal safety can be ensured even if the machine
restarts suddenly.)
(8) Maintenance, inspection and part replacement
DANGER
Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the module fixing screw. Failure to do so may result in electric shock.
Summary of Contents for LD77MH
Page 2: ......
Page 48: ...1 16 Chapter1 Outline of Synchronous Control MEMO ...
Page 84: ...2 36 Chapter 2 Input Axis Module MEMO ...
Page 104: ...3 20 Chapter 3 Cam Function MEMO ...
Page 168: ...4 64 Chapter 4 Synchronous Control MEMO ...
Page 234: ...Appendix 18 Appendices MEMO ...
Page 237: ......