Rockwell Automation 1746-HSRV SLC Servo Control Module User Manual - Manual (Page 79)

Publication 1746-6.1.2 - July 2000
6-4 Testing Your SLC Servo Module Hardware
4. Short the (machine tool) hardware Estop string.
5. Press and hold down the Estop Reset push-button. The
following events occur:
•
SLC Servo Module detects an Estop reset request.
•
SLC Servo Module closes the software-controlled Estop relay
in the SLC Servo Module.
•
Because the Estop string is shorted, Relay CR1 seals the Estop
Reset push-button.
6. Release the Estop reset push-button. The contacts in the Relay
CR1 remain closed (in the power-on condition).
7. Verify that the Relay CR1 contacts are closed by doing the
following:
•
Perform a continuity check on one of the drive enable
contacts that are normally open.
•
Check the Relay CR1 contacts visually to see if they are
closed.
8. Remove the string-out/string-in jumper. Relay CR1 drops out
indicating an Estop condition.
9. Reconnect the Estop string and drive enable to the termination
panel to get the system up and running.
IMPORTANT
Open each contact on the string so that the system
goes into Estop.