Lincoln Electric SVM188-A Auxiliary Power Control Connections, Terminal Strip 1 T.S.1

A-9 INSTALLATION A-9

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AUXILIARY POWER AND

CONTROL CONNECTIONS

Located at the left side of the front of the welder behind a hinged cover is a 115VAC duplex receptacle for aux- iliary power (60 Hertz Models only). On the right side of the case front is a 14 Pin MS type receptacle for con- nection of auxiliary equipment such as wire feeders. Also, terminal strips with 115VAC and connections for auxiliary equipment are located behind the hinged access panel on the right side of the case front. (see Auxiliary Power Table for details)

AUXILIARY POWER TABLE

Voltage and Circuit Breaker Ratings at Auxiliary Power

Connections for Various Models

Auxiliary	60 Hz	50/60 Hz
Power	Models	Models
Connections
At Duplex	115V 15A	No Duplex
Receptacle
Terminal strip	115V 15A	115V 15A
terminals 31 & 32
MS-Receptacle	115V 15A	115V 15A
pins A & J
MS-Receptacle	42V 10A	42V 10A
pins I & K

115VAC DUPLEX RECEPTACLE (60 HERTZ MODELS ONLY)

The 115VAC duplex receptacle is protected by a circuit breaker located on the nameplate. The receptacle is a NEMA 5-15R.

14 PIN MS TYPE RECEPTACLE

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

Refer to the figure A.10 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 (All Models). A 15 amp circuit breaker protects this circuit. Note that the 42 VAC and 115 VAC circuits are electri- cally isolated from each other.

FIGURE A.10 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
D = 4	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	---	---

TERMINAL STRIPS

Terminal strips are available behind the cover on the case front to connect wire feeder control cables that do not have a 14 Pin MS-type connector. These terminals supply the connections as shown in the following Terminal Strip charts. NOTE: There are two work sense lead connection points on the terminal strip. Connect both the work sense lead #21 from the 14 pin connec- tor and #21 lead of the control cable to “-21” when welding positive polarity or to “+21” when welding neg- ative 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 (Electrode Negative)
-21	Work Connection (Electrode Positive)2
41	42 VAC
4	Trigger Circuit
2	Trigger Circuit
31	115 VAC1
32	115 VAC1

1.115VAC circuit is on all models.

2.As shipped from the factory Lead #21 from the 14 Pin connector is

connected to “-21” on the terminal strip (T.S.2). This is the configuration for positive welding. If welding negative polarity, connect lead #21 to the “+21” connection point on the ter- minal strip (T.S.2).

DC-600