Yaskawa Sigma-5 User Manual: Setup for Rotary Motors - Manual (Page 12)

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„ Wiring (cont’d)
„ Operation
CAUTION
• Do not reverse the polarity of the battery when connecting it.
Failure to observe this caution may result in damage to the battery, the SERVO-
PACK, or cause an explosion.
• Wiring or inspection must be performed by a technical expert.
• Use a 24 VDC power supply with double insulation or reinforced insulation.
• Failures caused by incorrect wiring or wrong voltage application in the
brake circuit may damage the equipment or cause an accident resulting in
death or injury. Follow the procedures and instructions for wiring and trial
operation precisely as described in this manual.
• Leakage current may increase depending on the type of noise filter and the
grounding conditions.
When using a detector or a breaker for leakage current, select the appro-
priate one by considering the type of noise filter and the grounding condi-
tions. For details, contact the manufacturer of the noise filter.
• Incorrect wiring or incorrect voltage application to the output circuit may
cause short-circuit.
The above failures will prevent the holding brake from working, which may dam-
age the machine or cause an accident resulting in death or injury.
• Inverting the polarity of the brake signal (/BK), i.e. positive logic, will pre-
vent the holding brake from working in case of its signal line disconnection.
If this setting is absolutely necessary, check the operation and confirm that
there are no safety problems.
CAUTION
• Conduct trial operations on the servomotor alone, with the motor shaft dis-
connected from the machine to avoid accidents.
Failure to observe this caution may result in injury.
• During trial operation, confirm that the holding brake works correctly. Fur-
thermore, secure system safety against problems such as signal line dis-
connection.
• Before starting operation with a machine connected, change the settings to
match the parameters of the machine.
Starting operation without matching the proper settings may cause the machine to
run out of control or malfunction.
• Do not frequently turn power ON and OFF.
• Frequently turning power ON and OFF causes elements inside the SERVOPACK
to deteriorate. Do not use the servo drive with an application that requires fre-
quently turning power ON and OFF.
• After the actual operation starts, the allowable interval for turning power ON and
OFF is one hour or longer.