Auxiliary Power And Control Connections - Red-D-Arc DC-600 Operator's Manual

A-6
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 auxiliary power (60 Hertz Models only). On the
right side of the case front is a 14 Pin MS type recep-
tacle for connection 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
Power
Connections
At Duplex
Receptacle
Terminal strip
terminals 31 & 32
MS-Receptacle
pins A & J
MS-Receptacle
pins I & K
115VAC DUPLEX RECEPTACLE (60 HERTZ
MODELS ONLY)
The 115VAC duplex receptacle is protected by a cir-
cuit 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.5 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.5 FRONT VIEW OF 14-PIN
CONNECTOR RECEPTACLE
K = 4 2
A = 3 2
B = G N D
L
C = 2
D = 4
E = 7 7
M
INSTALLATION
60 Hz
Models
115V 15A
115V 15A
115V 15A
42V 10A
J = 3 1
I = 4 1
N
H = 2 1
G = 7 5
F = 7 6
PIN LEAD NO.
A 32
B GND
C 2
D 4
E 77
F 76
G 75
H 21
I 41
J 31
K 42
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 termi-
nals 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
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.
75
76
77
TERMINAL STRIP 2 (T.S.2)
Lead No.
+21 Work Connection (Electrode Negative)
-21 Work Connection (Electrode Positive)
41
4
2
31
32
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 config-
uration for positive welding. If welding negative polarity, connect
lead #21 to the "+21" connection point on the terminal strip
(T.S.2).
DC-600
A-6
FUNCTION
115 VAC
Chassis Connection
Trigger Circuit
Trigger Circuit
Output Control
Output Control
Output Control
2
Work Sense Connection
42 VAC
1.
115 VAC
42 VAC
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---
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Function
Output Control
Output Control
Output Control
Function
2
42 VAC
Trigger Circuit
Trigger Circuit
115 VAC 1
115 VAC 1