Auxiliary Power Control Connections | Lincoln Electric DC-655

A-7

INSTALLATION

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AUXILIARY POWER AND

CONTROL CONNECTIONS

Located at the lower front of the welder behind a hinged door is a 115 VAC duplex receptacle for auxil- iary power (Domestic and Canadian Models only) and a 14-pin MS type receptacle for connection of auxiliary equipment such as wire feeders. Also, terminal strips with 115 VAC and connections for auxiliary equipment are located behind the access panel on the lower case of the welder. A 220 VAC receptacle for a water cooler (European and Export Models only) is located on the case back.

AUXILIARY POWER TABLE

Voltage and Circuit Breaker Ratings at Auxiliary Power

Connections for Various Models

Auxiliary	Domestic	Canadian	European	Export
Power	Models	Model	Models	Models
Connections	(60Hz)	(230/460/575V/60 Hz)	(50/60 Hz)	(50/60 Hz)

At Duplex	115V 20A	115V 15A	No Duplex	No Duplex
Receptacle

Terminal strip	115V 20A	115V 15A	115V 15A	115V 15A
terminals 31 & 32

MS-Receptacle	115V 20A	115V 15A	Open Circuit	115V 15A
pins A & J

MS-Receptacle	42V 10A	42V 10A	42V 10A	42V 10A
pins I & K

At 220V	No Receptacle	No Receptacle	220V 2A	220V 2A
Receptacle

115 VAC DUPLEX RECEPTACLE (DOMESTIC AND CANADIAN MODELS ONLY)

The 115 VAC duplex receptacle is protected by a cir- cuit breaker located below the receptacle (see Auxiliary Power Table). Receptacle is a NEMA 5-20R (protected by a 20 amp breaker) on Domestic Models and a NEMA 5-15R (protected by a 15 amp breaker) on Canadian Models.

230 VAC RECEPTACLE (EUROPEAN AND EXPORT MODELS ONLY)

A Continental European receptacle is located on the rear panel for supplying 220 VAC to a water cooler. The receptacle has a protective cover to prevent acciden- tal contact and is a Schuko type. The circuit is pro- tected by a 2 amp circuit breaker also located on the rear panel. This circuit is electrically isolated from all other circuits, but on the European Models one line is connected to chassis ground.

14-PIN MS TYPE RECEPTACLE

(For MS3106A-20-27PX Plug. L.E.C. Part #S12020-32)

Refer to the Figure A.4 for the available circuits in the 14-pin receptacle.

42 VAC is available at receptacle pins I and K. A 10 amp circuit breaker protects this circuit.

115 VAC is available at receptacle pins A and J (Domestic, Canadian and Export Models). This circuit is protected by a circuit breaker (see Auxiliary Power Table). Note that the 42 VAC and 115 VAC circuits are electrically isolated from each other. However, on the European model one line of the 115 VAC is connected to chassis ground.

FIGURE A.4 - FRONT VIEW OF 14-PIN

CONNECTOR RECEPTACLE

		K = 4 2
	A = 3 2		J = 3 1
	B = G N D		I = 4 1
	L		N
	C = 2		H = 2 1
			H = 2 1
	D = 4		G = 7 5
			G = 7 5
	E = 7 7		F = 7 6
			M

PIN	LEAD NO.		FUNCTION

A	32		115 VAC
B	GND		Chassis Connection
C	2		Trigger Circuit
D	4		Trigger Circuit
E	77		Output Control
F	76		Output Control
G	75		Output Control
H	21		Work Sense Connection2
I	41		42 VAC
J	31		115 VAC1.
K	42		42 VAC
L	---		---
M	---		---
N	---		---

1.115VAC circuit is not present in the 14-pin connector on IEC 974- 1 European models.

2.As shipped from the factory Lead #21 from the 14-pin connector is connected to “-21” on the terminal strip. This is the configuration for positive welding. If welding negative polarity, connect lead #21 to the “+21”connection point on the terminal strip.

IDEALARC DC-655