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(3) Test run adjustment
CAUTION
Before operation, check the parameter settings . Improper settings may cause some machines t o perform
unexpected operation.
The parameter settings must not be changed exc essively. Operation will be insatiable.
(4) Usage
CAUTION
Provide a forced stop circuit to ensure that o peration can be stopped and power switched of f immediately.
Any person who is involved in disassembl y and repair should be fully competent to do t he work.
Before resetting an alarm, make sure that the run s ignal of the servo amplifier is off to prevent an
accident. A sudden restart is made if an alar m is reset with the run signal on.
Do not modify the equipment.
Use a noise filter, etc. to minimize the influence of electromagnetic interference, which may be caused by
electronic equipment used near the servo am plifier.
Burning or breaking a servo amplifier may c ause a toxic gas. Do not burn or break a servo amplifier.
Use the servo amplifier with the specified ser vo motor.
The electromagnetic brake on the servo motor is designe d to hold the motor shaft and should not be used
for ordinary braking.
For such reasons as service life and mechanical structure (e .g. where a ball screw and the servo motor
are coupled via a timing belt), the electromagnetic brak e may not hold the motor shaft. To ensure safety,
install a stopper on the machine side.
(5) Corrective actions
CAUTION
When it is assumed that a hazardous condition may take place at the occur due to a power failure or a
product fault, use a servo motor with electromagnet ic brake or an external brake mechanism for the
purpose of prevention.
Configure the electromagnetic brake circuit so that it is ac tivated not only by the interface unit signals but
also by a forced stop (EM1).
EM1RA
24VDC
Contacts must be open when
servo-off, when an alarm occurrence
and when an electromagnetic brake
interlock (MBR).
Electroma
g
netic brake
Servo motor
Circuit must be
opened during
forced stop (EM1).
When any alarm has occurred, eliminate its cause, ens ure safety, and deactivate the alarm before
restarting operation.
When power is restored after an instantaneous power failu re, keep away from the machine because the
machine may be restarted suddenly (design t he machine so that it is secured against hazar d if restarted).