Emerson 2000IW Maintenance Manual page 40

2.7.5 WELD ON Signal - Alarm Connector
The WELD ON signal indicates you are in the Weld Time portion of the cycle and that TRS
is active. This signal indicates when a start signal can be released.
In any of the following situations, an error will be generated:
• The input becomes inactive while the welder is in the READY state
• The input does not become inactive within 4 seconds after the solenoid valves are activated
• The input becomes active before weld timing begins during a weld cycle
• The input does not become active within 4 seconds after the solenoid valves are deactivated
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