YASKAWA Sigma-V Series User Manual page 34

 Protecting the Servomotor
• Be sure to connect the servomotor's built-in thermostat to the host control-
ler or to the main circuit magnetic contactor's operation circuit.
Failure to observe this warning may result in injury, fire, or damage to the product.
• Usage Example 1:
In this example, the output signal from the thermostat is received by the host
controller if the thermostat is activated and the host controller turns OFF the
servo.
Main circuit
power supply
• Usage Example 2:
In this example, the main circuit magnetic contactor's operation circuit is acti-
vated or the output signal from the thermostat is received by the host controller if
the thermostat is activated and the main circuit magnetic contactor is turned OFF.
Main circuit
power supply
Main circuit
magnetic contactor
WARNING
Main circuit
magnetic
contactor
Multi-winding
drive unit,
SERVOPACKs,
and converters
Servo OFF
Host controller
Main circuit
magnetic
contactor
Multi-winding
drive unit,
SERVOPACKs,
and converters
Host controller or main circuit
magnetic contactor's operation circuit
3.2 Servomotor Installation
Thermostat
M
ENC
Thermostat
M
ENC
3-9