Lincoln Electric DC-655 service manual Terminal Strip 1 T.S.1, Terminal Strip 2 T.S.2

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A-8 A-8

INSTALLATION

TERMINAL STRIPS

Terminal strips are available behind the cover panel on the lower case front to connect wire feeder control cables that do not have a 14-Pin MS-type connector. Refer to Figure A.3 for the location of this cover panel. These terminals supply the connections as shown in the following Terminal Strip charts. See Auxiliary Power Table for rating of circuit breaker in 115 VAC cir- cuit. Remove a plug button from the terminal strip cover and install an appropriate strain relief clamp for the cable being used. NOTE: There are two work sense lead connection points on the terminal strip. Connect both the work sense lead #21 from the 14-pin connector and #21 lead of the control cable to “-21” when welding positive polarity or to “+21” when weld- ing negative polarity.

TERMINAL STRIP 1 (T.S.1)

Lead No.	Function
75	Output Control
76	Output Control
77	Output Control

TERMINAL STRIP 2 (T.S.2)

Lead No.	Function
+21	Work Connection
-21	Work Connection2
41	42 VAC
4	Trigger Circuit
2 (42 VAC)	Trigger Circuit (42 VAC)
31	115 VAC1
32	115 VAC1

1115 VAC circuit is also present on IEC 974-1 European models.

2If connecting a feeder cable directly to the terminal strip, Lead #21 from the cable is connected to “-21” on the terminal strip for positive welding. If welding negative polarity, connect lead #21 to the “+21” connection point on the terminal strip.

IDEALARC DC-655