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G-4
ELECTRICAL DIAGRAMS
R3R
G-4
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Wiring Diagram - R3R-400 (Code 9537)
ELECTRICAL SYMBOLS PER E1537
LEGEND
D5
D6
D7
POCKET AMPTROL SENSING BRIDGE
L1 DC OUTPUT FILTER
R1
R2
R3
R4
15
14
13
4
5
6
7
8
9
TO SUPPLY LINES
TO PRIMARY COILS
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
1
2
3
L1
L2
L3
ICR
233
232
231
H3
H2
H1
X2
X1
T2
RECONNECT PANEL SHOWN
CONNECTED FOR LOW VOLTAGE
4
5
6
7
8
9
1
2
3
232
231
H3
H2
H1
X2
X1
T2
233
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
ICR
L1
L2
L3
TO SUPPLY LINES
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
H3
H2
H1
X2
X1
T2
TO SUPPLY LINES
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
232
231
H3
H2
H1
X2
X1
T2
TO SUPPLY LINES
ICR
233
TO PRIMARY
COILS
PRIMARY CONNECTIONS
4-7, 6-9, AND 5-8
MAIN TRANSFORMER .
1
2
3
L1
L2
L3
DIAL SELECTOR SWITCH
SCR1-D1
SCR2-D2
SCR3-D3
D4
SCR AND DIODE
RECTIFIER BRIDGE
T1
T2
T3
MAIN TRANSFORMER
CONTROL TRANSFORMER
POCKET AMPTROL OPTION
TRANSFORMER
ICR INPUT STARTER
( DASHED ITEMS ON WIRING
DIAGRAM ARE OPTIONAL )
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF BOARD)
A B C D E
F
10K OHM POT., OUTPUT CONTROL
10K OHM POT., ARC FORCE CONTROL
40 OHM
SW1
SW2
SW3
SW4
POWER SWITCH
MACHINE/REMOTE SWITCH
L1
D4
D1
D2
D3
SCR1
SCR2
SCR3
R3
204
204
204
205
206
SHUNT
218
R4
D5
D6
D7
219
219
201
202
203
204
204
209
208
217
CONTROL
P.C.
BOARD
SW1
PILOT LIGHT
231
235
235
232
W
THESE LEADS ARE
PRESENT ONLY WITH
OPTIONAL METER
KIT.
220
225
115V
G
G
Y
T3
G
OPTIONAL POCKET
AMPTROL P.C.
BOARD
77
76
75
75
217
206
205
204
204
214
75
210
211
R1
SW2
R2
204
208
209
224
OPTIONAL METER KIT
VM
AM
+
+
--
FRAME GROUND
-
+
217
217
115 V
201
202
203
13 14 15
7
8
9
S
S S
10 11 12
1 2 3
4 5 6
66V
AUXILIARY COILS
BOTTOM PRIMARY
TOP PRIMARY
T1
X1
X2
X3
SEC SEC SEC
13, 14, & 15 ARE PRESENT
ON 380/500 OR 460/575
MACHINES ONLY.
THERE IS NO 10-11-12
CONNECTION ON 380
OR TRIPLE VOLTAGE
MACHINES.
A
CHOKE
THERMOSTAT
SECONDARY
THERMOSTAT
233
231
204
ICR
1
2
3
L1
L2
L3
11
10
12
3
2
1
9
8
7
6
5
4
RECONNECT PANEL SHOWN
CONNECTED FOR 380V .
TO PRIMARY COILS
TO PRIMARY COILS
H4
234
235
FAN MOTOR
HIGH TEMP LIGHT
221
222
223
G1
G2
G3
204
+
-
G1
G2
G3
204
226
220
204
211
210
213
77
212
76
SW3
(SWITCH SHOWN
IN LOCAL
POSITION)
A = AMBER
G = GREEN
W = WHITE
Y = YELLOW
COLORS
235
232
ARE MADE AT THE
SINGLE, 346V AND ABOVE
(EXCEPT 380V.)
380V OR TRIPLE
VOLTAGE
SINGLE, BELOW 346V OR
DUAL VOLTAGE
380/500 OR 460/575
V
66V
66V
76
77
SW4
OPTIONAL POLARITY SWITCH (60 Hz ONLY)
FLEX LEAD JUMPER
RECONNECT PANEL SHOWN
CONNECTED FOR LOW VOLTAGE
1
2
3
4
1
2
3
4
5
6
77
76
75
G
Y
218
219
J6
J7
1
2
3
4
5
6
7
8
214
75
213
212
201A
203A
J2
J4
201A
203A
J3
6
3
2
1
5
1
8
5
6
7
4
3
2
1
5
6
4
3
2
1
2
4
3
1
2
J1
.4 OHM POCKET AMPTROL SENSING RESISTOR
8069
6-1-90
10-5-90C
3-8-91J
3-8-91R
3-6-92C
R3R-400, 500-I, 500 & 600-I
WIRING DIAGRAM
GD
NONE
8069
7-5-89
L6549
t
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON HOLE SIZES PER E2056
ON 2 PLACE DECIMALS IS .02
WITH PUBLISHED STANDARDS.
ON 3 PLACE DECIMALS IS .002
ON ALL ANGLES IS .5 OF A DEGREE
MATERIAL TOLERANCE (" ") TO AGREE
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
EQUIP.
TYPE
SCALE
SUBJECT
DR
DATE
CHK
REF.
SUPÕSÕDÕG
SHT.
NO.
THE LINCOLN ELECTRIC CO.
THIS SHEET CONTAINS PROPRIETARY INFORMATION
OWNED BY AND IS
NOT TO BE REPRODUCED, DISCLOSED OR USED
THE LINCOLN ELECTRIC CO.
L
L
WITHOUT THE EXPRESS PERMISSION OF
CONNECTOR AND THESE THREE
LEADS ARE NOT USED WHEN
OPTIONAL POCKET AMPTROL
IS PROVIDED.
REMOTE CONTROL
RECEPTACLE
4
2
1
3
4
2
1
RECTIFIER
BRIDGE
1 2 3 4 5 6 7 8
J5
SNUBBER BOARD
SNUBBER BOARD
226
224
204
235
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.
DEC 97