Wiring Diagrams - Lincoln Electric IDEALARC R3R-300 Operator's Manual

E-2
IDEALARC R3R WIRING DIAGRAM (230/460/575 V) (FOR CANADA ONLY)
ELECTRICAL SYMBOLS PER E1537
LEGEND
D5
D6
POCKET AMPTROL SENSING BRIDGE
D7
L1 DC OUTPUT FILTER
R1 10K OHM POT., OUTPUT CONTROL
R2 10K OHM POT., ARC FORCE CONTROL
R3 40 OHM
R4 .4 OHM POCKET AMPTROL SENSING RESISTOR
SW1 POWER SWITCH
SW2 MACHINE/REMOTE SWITCH
SW3 DIAL SELECTOR SWITCH
SW4 OPTIONAL POLARITY SWITCH (60 Hz ONLY)
SCR1-D1
SCR2-D2 SCR AND DIODE
SCR3-D3 RECTIFIER BRIDGE
D4
T1 MAIN TRANSFORMER
T2 CONTROL TRANSFORMER
T3 POCKET AMPTROL OPTION
TRANSFORMER
ICR INPUT STARTER
COLORS
A = AMBER
G = GREEN
W = WHITE
Y = YELLOW
( DASHED ITEMS ON WIRING
DIAGRAM ARE OPTIONAL )
2 1
5 1
4 1
6 2
5 2
7 3
6 3
3 1
8 4
4 2
CAVITY NUMBERING SEQUENCE
(COMPONENT SIDE OF BOARD)
CONNECTOR AND THESE THREE LEADS
ARE NOT USED WHEN OPTIONAL
POCKET AMPTROL IS PROVIDED
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The
specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.

WIRING DIAGRAMS

AUXILIARY COILS
TOP PRIMARY
BOTTOM PRIMARY
L1
RECTIFIER
BRIDGE
220
225
G
203A
Y 115V
OPTIONAL POCKET
201A
G
AMPTROL P.C.
BOARD
T3
1
G
2
Y
J7
3
G
4
1
218
2
219
3
75
J6
4
76
5
77
6
75
217
217
212 76
210
211
SW2
77 76 75
(SWITCH SHOWN IN
LOCAL POSITION)
A B C D E
REMOTE CONTROL
RECEPTACLE
-
IDEALARC® R3R, -300, -400, -500
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
HIGH TEMP LIGHT
233
CHOKE
FAN MOTOR
THERMOSTAT
115 V
201 202
13 14 15
66V
66V 66V
8 9
7
S S
S
204
10 11 12
18
17
16
2 3
1
4 5 6
T1
X3
X1
X2
SEC SEC SEC
220
D2
D1 D3
R3
D4
SCR1 SCR2 SCR3
204
222
223
204
221
G1 G2 G3
226
204
204
224
G1 G2 G3 204
2 1 3 4 2 1
1 2 3 4 5 6 7 8
J2
J4
J3
J5
SNUBBER BOARD
SNUBBER BOARD
226
1
2
3
CONTROL CONTROL
4
P.C. P.C.
OPTIONAL METER KIT
5
BOARD BOARD
AM J1
VM
6
+
- + -
7
8
205
217
206
214 204
210 211
75
76 204
204
77
77
R1
213
SW3
FRAME GROUND
F
SW4
TO SUPPLY LINES
RECONNECT PANEL SHOWN
CONNECTED FOR 230V
13
3
H4
X2 14
9
SEPARATELY
L3
4 15
H3 8
T2 TO PROVIDE
5
2
L2 16
6
H2
17 600 VOLTS
7
X1
INSULATION
18
L1 1
H1
ICR
TO PRIMARY COILS
232
A 235
SECONDARY
THERMOSTAT
231
234 235
203
219
218
204
R4
219
204
D5
SHUNT
D6
-
D7
206
205
THESE LEADS ARE
PRESENT ONLY WITH
OPTIONAL METER
KIT.
6 201A
3 201
2 202
1 203
203A
5
204
4
232
235
W
204
PILOT LIGHT
209
235
208
214
75
235
212
231
213
217 SW1
208
209
224
R2
+
11-19-93B
L8184
E-2
TAPE UP
AT LEAST