APPENDIX B: ELECTRICAL AND DATA CONNECTIONS
HF-2500A HIGH FREQUENCY WELD CONTROL
B-14 990-371
Relay Outputs
Function
Four mechanical relays on the control board can be independently programmed to supply alarm or weld
status contact signal outputs. You can access the programming function through the main menu, as
described in Chapter 3. The events that you can program for each relay and their timing diagrams are as
follows:
Relay contacts closed or open in the energized state. Relays are energized when:
3. Alarm state is detected. 4. Weld is out of programmed limits.
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