8 Safety Function
8-4
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
This is a monitor output signal that is used to monitor the status of safety input signals using an external
device. Connect a safety device, such as a safety controller or a safety sensor. Connect the EDM output
signal to the monitoring terminal on a safety device.
*1 This is not a safety output.
Normally when both safety inputs 1 and 2 are OFF, i.e., when the STO function is activated for both
safety input circuits, the EDM output is ON.
You can detect a failure of the safety input circuit and the EDM output circuit by monitoring all of the
following 4 signal states using an external device.
These are the two cases of errors:
• Both safety inputs 1 and 2 are OFF, but the EDM output circuit signal does not turn ON.
• Either or both safety inputs 1 and 2 are ON, but the EDM output circuit signal is ON.
The maximum delay time is 6 ms after the safety input signal is input until the EDM output signal is
output.
8-1-2 External Device Monitor (EDM) Output Signal
Signal name Symbol Pin number Description
Control mode
Position Speed Force
EDM output
*1
EDM CN8-8 Monitor signal is output to
detect malfunctioning of the
safety function.

EDMï€ CN8-7 
8-1-3 Relationship between Safety Input Signals and EDM Output Signal
Signal name Symbol Signal status
Safety input 1 SF1 ON ON OFF OFF
Safety input 2 SF2 ON OFF ON OFF
EDM output EDM OFF OFF OFF ON
To Next Page
Loading...
Need help?
General
