LiftMaster T T MECHANICAL Manual - Page 12

DIAGRAMS, VOLT - 1 PHASE, MOTOR CONNECTION, Voltage same as line voltage.

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1742-1 SINGLE PHASE SCHEMATIC DIAGRAM 115V BRAKE (WHEN PRESENT) 230V BRAKE (WHEN PRESENT) PUR BL YEL GY 13 8 5 42 BL/BK BL/BK 115 VOLT - 1 PHASE MOTOR CONNECTION L2 1 PHASE POWER IN L1 (BK) (BK) OVERLOAD (BK) IR (SEE NOTE #1) (BK) 230V MODELS 115V MODELS PUR BL YEL GY BL/BK 1 8 5 23 4 BL/BK 230 VOLT - 1 PHASE MOTOR CONNECTION CL 4 3 OP 4 3 OP 2 1 CL 6 5 OP 5 6 CL 1 2 (YE) (GY) (PUR) TO MOTOR (BL) 3 (YEL) STOP OPEN SAFETY EDGE (OR) R1 (OR) (BR) EXTERNAL 4 INTERLOCK HAND CHAIN INTL'K SWITCH (WHEN PRESENT) 5 (BRN) NC C (YEL) 14 OP 13 1 (OR) IR (Y) C NO (OR) (BRN) PRI. T1 (SEE NOTE #1) 24VAC SEC. (YEL) OPEN OP (OR) LIMIT SWITCH (OR) A1 A2 NC C WIRE NUT AUX. CLOSE 10 (GY) LIMIT SWITCH NC C (GY) (RED) R1 (RED) R3 (RED) (OR) (OR) (PUR) (RED) OPEN & CLOSE RADIO TO OPEN & CLOSE 7 (YEL) (YEL) NC AUX. OPEN C LIMIT SWITCH NO R1 R2 CLOSE TIMER TO CLOSE (OPTIONAL) (PUR) (PUR) 2 (P) IR (R) C NO (PUR) R1 (PUR) A2 CLOSE LIMIT SWITCH CL (PUR) A1 NC (PUR) C 14 CL 13 NOTE: 1. Voltage same as line voltage. * - Shipped from Factory CLOSE CONTROL WIRING OPTIONS *C2 WIRING - Constant Presssure to Close RED WIRE ON TERMINAL #2 (Shipped from Factory) B2 WIRING - Momentary Contact to Close MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3 12

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SINGLE PHASE SCHEMATIC DIAGRAM
4
3
5
6
1
2
4
3
2
1
6
5
L2
(YE)
(PUR)
(BL)
EXTERNAL
STOP
3
4
5
T1
24VAC
SEC.
PRI.
AUX. CLOSE
LIMIT SWITCH
NC
C
1
7
10
OPEN
SAFETY EDGE
OPEN & CLOSE
LIMIT SWITCH
AUX. OPEN
C
NO
NC
LIMIT SWITCH
NC
C
TO MOTOR
POWER IN
L1
1 PHASE
INTERLOCK
OP
R1
OP
OP
CL
CL
OP
CL
OP
14
13
OVERLOAD
R1
OPEN & CLOSE
R2
R1
OPEN
CLOSE
2
14
13
CL
CL
LIMIT SWITCH
NC
CLOSE
C
R1
(BK)
(BK)
(BK)
(BRN)
(BR)
(YEL)
(OR)
(OR)
(OR)
(OR)
(RED)
(RED)
(OR)
(YEL)
(YEL)
(PUR)
(OR)
(PUR)
(PUR)
(PUR)
(PUR)
(P)
R3
(RED)
(YEL)
(OR)
(OR)
(SEE NOTE #1)
(PUR)
TIMER TO CLOSE
(PUR)
(OPTIONAL)
(WHEN PRESENT)
230V BRAKE
(GY)
(GY)
RADIO TO
A1
A2
A2
A1
(YEL)
NUT
WIRE
8
5
YEL
BL
PUR
1
BL/BK
BL/BK
230 VOLT - 1 PHASE
MOTOR CONNECTION
NOTE:
1.
Voltage same as line voltage.
IR
C
NO
(R)
IR
C
NO
(Y)
115V MODELS
IR
(BK)
230V MODELS
(GY)
4
GY
2
3
(WHEN PRESENT)
115V BRAKE
8
5
YEL
BL
PUR
1
BL/BK
BL/BK
115 VOLT - 1 PHASE
MOTOR CONNECTION
4
GY
3
2
(SEE NOTE #1)
(BRN)
NC
C
HAND CHAIN
INTL'K SWITCH
(WHEN PRESENT)
(RED)
C2 WIRING
-
Constant Presssure to Close
RED WIRE ON TERMINAL #2 (Shipped from Factory)
B2 WIRING
-
Momentary Contact to Close
MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3
*
CLOSE
CONTROL
WIRING
OPTIONS
-
Shipped from Factory
*
12
1742-1