Lincoln Electric IDEALARC R3R-300 - Manual (Page 25)

WIRING DIAGRAMS
IDEALARC® R3R, -300, -400, -500
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.
ELECTRICAL SYMBOLS PER E1537
LEGEND
D5
D6
D7
POCKET AMPTROL SENSING BRIDGE
L1 DC OUTPUT FILTER
R1
R2
R3
R4
TO GROUND
PER
NATIONAL
ELECTRICAL
CODE
H3
H2
H1
X2
X1
T2
TO SUPPLY LINES
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)
CONNECTOR AND THESE THREE LEADS
ARE NOT USED WHEN OPTIONAL
POCKET AMPTROL IS PROVIDED
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
CONTROL
P.C.
BOARD
SW1
PILOT LIGHT
231
235
235
232
W
THESE LEADS ARE
PRESENT ONLY WITH
OPTIONAL METER
KIT.
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
A A 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
A
CHOKE
THERMOSTAT
SECONDARY
THERMOSTAT
233
231
204
ICR
L1
L2
L3
RECONNECT PANEL SHOWN
TO PRIMARY COILS
H4
234 235
FAN MOTOR
HIGH TEMP LIGHT
G2 G3
204
+
-
G1 G2 G3 204
220
204
211
210
213
77
212 76
SW3
A = AMBER
G = GREEN
W = WHITE
Y = YELLOW
COLORS
235
232
66V 66V
76
77
SW4
OPTIONAL POLARITY SWITCH (60 Hz ONLY)
16
17
18
6
15
5
14
4
13
1
2
3
7
8
9 TAPE UP
SEPARATELY
TO PROVIDE
AT LEAST
600 VOLTS
INSULATION
{
18 16 17
CONNECTED FOR 230V
1
8
5
6
7
4
3
2
1
5
6
4
3
2
1
2 4
3
1 2
G 1
2
3
4
1
2
3
4
5
6
77
76
75
G
Y
218
219
{
{
J6
J7
204
209
208
217
CONTROL
P.C.
BOARD
1
2
3
4
5
6
7
8
214
75
213
212
{
{
{
J2
J4
J1
.4 OHM POCKET AMPTROL SENSING RESISTOR
2 1 3 4 2 1
REMOTE CONTROL
RECEPTACLE
1 2 3 4 5 6 7 8
{
J5
SNUBBER BOARD
226
224
204
226
220
225
221
222 223
G1
RECTIFIER
BRIDGE
201
202
203
204
201A
203A
J3
6
3
2
1
5
4
{ 115V
G
G
Y
T3
201A
203A
(SWITCH SHOWN IN
LOCAL POSITION)
235
32
15A
31
SILVER
OUTPUT PANEL
GROUND STUD
IDEALARC R3R WIRING DIAGRAM (230/460/575V) (FOR CANADA ONLY CODES 10857, 10858, 10881, 10882)
2-8-2002D
L11869
E-3 E-3