3. Operation
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3.3.2 Operation Ready and Auxiliary Signals
[1] System Ready (PWR)
Output
PIO signal
PWR
The signal is turned ON if the controller can be controlled after main power-on.
It is turned ON once the initialization terminates normally after main power-on and SCON can
be controlled regardless of alarm and servo status.
Even in the alarm condition, when the SCON can control the system, it is turned “ON”.
The signal is synchronized with the illumination of the PWR LED (GN) on the front face of the
controller.
[2] Emergency stop status (*EMGS)
Output
PIO signal
*EMGS
1) Emergency Stop Status EMGS is usually turned ON and is turned OFF when “2.3.3 [3]
Actuator emergency stop circuit (System I/O Connector)” is open between EMG+ and EMG-
(emergency stop condition or not connected).
2) It turns back ON if the emergency stop condition is cancelled and the circuit is closed
between EMG+ and EMG-. Have an appropriate safety treatment such as interlock with this
signal for the host controller (PLC, etc.).
Caution: It is not an emergency stop output due to an alarm generation of the
controller.
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