Yaskawa Sigma II Series Servo System - Manual (Page 83)

Sigma II User’s Manual Chapter 4: Trial Operation
4 - 11
care must be exercised when wiring the holding brake circuit. Please observe the following
precautions and check the brake circuit wiring carefully.
Addition of an outside interlock:
Safety can be enhanced by the addition of an interlock circuit.
Please examine the operation sequence of the emergency stop circuit in accordance with
your system requirements. Asuggested interlock circuit is shown below:
Caution
• Faulty wiring or abnormal voltage may cause short-circuit failure in
the output circuit of the servo amplifier
• Short-circuit failure of the brake signal (/BK) could cause machine
break-down and/or physical injury.
• Check the wiring and perform trial runs with caution, especially with
vertical load applications, and be sure to follow appropriate safety
procedures