Omron ACCURAX G5 User Manual page 362

7-1 Safe Torque OFF (STO) Function
External Device Monitor (EDM) Output Signal
This is a monitor output signal that is used to monitor the status of safety input signals using
an external device.
Connect a safety equipment, such as a Safety Controller or a safety sensor, to the external
device monitoring terminal.
Signal name
EDM output
Relationship Between Safety Input Signal and EDM Output Signal
When safety inputs 1 and 2 are both OFF (where the STO function is operating for safety inputs
for the 2 circuits), the EDM output circuit is turned ON.
You can detect a failure of the safety input circuit and the EDM output circuit by monitoring all
of the following 4 signal statuses using an external device.
7
Safety input 1
Safety input 2
EDM output
The maximum delay time is 6 ms after the safety input signal is input and until the EDM output
signal is output.
7-4
Symbol
number
EDM+ CN8-8
EDM− CN8-7
Signal name Symbol
SF1 ON
SF2 ON
EDM OFF
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Pin
Description
• Monitor signal is output to detect
malfunctioning of the safety
function.
* This output signal is not a safety
output.
Signal status
ON OFF
OFF ON
OFF OFF
CONTROL mode
Position Speed Torque
√ √ √
√ √ √
OFF
OFF
ON
Full
closing
√
√