Precautions - YASKAWA Sigma-7S Series Product Manual

3.1 Precautions

3.1

Precautions

3-2
 Use an external dynamic brake resistor that matches the specifications for the relevant
equipment or machine. Always evaluate the dynamic brake operation on the actual equip-
ment or machine to confirm that there are no problems with the coasting distance or dura-
bility of the dynamic brake resistor. If necessary, select another dynamic brake resistor and
install any necessary safety devices in the machine.
There is a risk of unexpected operation, machine damage, burning, or injury when an emer-
gency stop is performed.
 The dynamic brake resistor cannot be used if the motor is turned by the machine after stop-
ping due to a power interruption or error. Coast the motor to a stop instead.
Failure to do so may cause the dynamic brake resistor or SERVOPACK to burn or may cause
injury.
 Do not use the dynamic brake for any application other than an emergency stop.
There is a risk of failure due to rapid deterioration of elements in the SERVOPACK and the risk
of unexpected operation, machine damage, burning, or injury.
WARNING
CAUTION