Yaskawa YASNAC PC NC I/O Signal Function Manual - Manual (Page 91)

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YASNAC PCNC I/O Signal Function Manual Chapter 10: Safety and Maintenance Functions
10.6 Servo Alarm Output Signals
This output signal notifies the machine that an alarm has occurred when the PCNC detects any
of the following alarm factors:
• DSP Detecton Alarm
Overload (OL)
Runaway
PG open
Excessive deviation
Overspeed (OS)
• Monitor CPU Detection Alarm
Position error
ABSO error (encoder error)
Communication error
• I-AMP Detection Alarm
Overcurrent (OC)
MCCB trip
Regeneration error
Overvoltage (OV)
Undervoltage (UV)
Heat Sink overheat
Current command cable open
Open phase detection
10.7 Warning State Output Signal
The warning state output signal WARNS is “closed” when a minor error such as key operation
error or editing is detected.
It is “opened” by the successive key operation.
Servo Alarm Output Signal SVALM #35033
Warning State Output Signal WARNS #35004