LiftMaster BG790 BG790 Manual - Page 22

Field Wiring & Adjustments, Control Wiring Type

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WIRING DIAGRAM (1 of 2) To protect against fire and electrocution: • DISCONNECT power BEFORE installing or servicing operator. • Replace ONLY with fuse of same type of rating. Fuse 3.2A, 3AG, 250V, SLO-BLO (GN) (BK) 3-PHASE INCOMING LINE (SEE NOTE 2) (W) (R) (BK) L1 CL (W) 43 (W) (BK) L2 (BK) L3 (W) OP (W) 43 OP (W) 21 CL (W) H1 65 (W) OP (W) 56 1 CL 2 (GN) (BL) (R) (W) (BL) 1 74J 28 5 396J 480V MOTOR CONNECTION MOTOR CONNECTION SAME (GN) AS INCOMING POWER (BL) (R) (W) (BL) 1 74 J 28 5 208/230V MOTOR 3 9 6 J CONNECTION 115V GEARBOX HEATER (BK) H2 WIRE COLOR: 208V-(R), 230V-(OR), 480-(VT), 575V-(GY) (GN) (BL) 1 (R) 2 (W) (BL) 3 J 575V MOTOR CONNECTION J (OPTIONAL EQUIPMENT) (YEL) 4 (YEL) AUTO/MANUAL O/L IN SEE NOTE 1 (BL) MOTOR (OR) FUSE 3.2A J1 J2 24V SEC. (W) OPEN (OR) (GN) OPEN LOOP-PRESENCE (W) J3-4 J3-6 SENSING EDGE (OPTIONAL) AUX. (W) CLOSE L/S GY 3 7 1 (PUR) (BR) R1 1) REMOVE JUMPER WHEN TIMER TO CLOSE IS USED. 24V COIL (OR) R1 (GN) R2 (GN) (OR) 14 OP 13 (OR) (OR) R1 (Y) CLOSE 5 TD-2 2) REMOVE JUMPER TO CAUSE GATE ARM TO CLOSE IMMEDIATELY UNLESS HOLD OPEN LOOP IS ACTIVATED 24V COIL (OR) (OR) CLOSE L/S (BL) 24V COIL OP NO C (OR) TD1 24VAC DPDT HOLD OPEN (GN) LOOP-PRESENCE (W) (GY) J4-4 J4-6 10 (OPTIONAL) (OR) CL (R) 14 13 (BL) R2 24V COIL TIMER (OPTIONAL) (BR) (R) R2 (W) (BK) R1 (PUR) TD1 (PUR) 24V COIL (PUR) CLOSE L/S (BL) 2 8 9 CL NO C REMOVE JUMPER WHEN TIMER IS ADDED ADD JUMPER WHEN USING CLOSE BUTTON DO NOT USE WITH HOLD OPEN LOOP TD2 24VAC DPDT TERMINAL BLOCK WIRE CONNECTION FOR STANDARD CONTROL DEVICES WIRE CONNECTION FOR STANDARD CONTROL DEVICES J3 IS CONNECTOR FOR 24V OPEN LOOP DETECTOR J4 IS CONNECTOR FOR 24V HOLD OPEN LOOP DETECTOR (BRN) J3-9 P1 (GY) J3-10 P2 (BRN) J4-9 P3 (GY) J4-10 P4 OPEN LOOP LOOP WIRES (OPTIONAL) HOLD OPEN LOOP LOOP WIRES (OPTIONAL) (BK) J3-7 (BK) J4-7 24V OPEN LOOP (R) 24V HOLD OPEN LOOP J3-8 (R) J4-8 (OPTIONAL EQUIPMENT) NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 1 APPLICATIONS: CONTROL WIRING TYPE FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: BG770 (PG) BG790 (HBG) 1/2 208/230/480/575V DRAWING NUMBER: 01-G1015 DATE: 08/28/00 REVISION: E-3/20/08 ECN: 08-7165 22

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22
E-3/20/08
08/28/00
08-7165
GY
AUX.
CLOSE L/S
(W)
(W)
FUSE 3.2A
(BL)
(GN)
(R)
(W)
(W)
(W)
(R)
(GN)
(R)
(GN)
(BL)
(BL)
(BL)
(BL)
(BL)
(BL)
(OR)
(OR)
575V MOTOR
CONNECTION
1)
TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE
24V SECONDARY
2)
WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR.
(W)
(GN)
(GN)
(GY)
(GN)
(GN)
(W)
(Y)
OPEN
OPEN LOOP–PRESENCE
(OPTIONAL)
7
J3–6
J4–6
J3–7
J4–7
J4–8
J3–9
J3–10
J4–9
J4–10
P4
P3
P2
P1
J3–8
(OPTIONAL EQUIPMENT)
J4–4
J3–4
4
SENSING
EDGE
(OR)
(OR)
(PUR)
(OR)
(OR)
(OR)
(R)
(R)
R2
R2
R1
TD1
OP
24VAC
DPDT
24VAC
DPDT
APPLICATIONS:
DRAWING NUMBER:
DATE:
REVISION:
ECN:
MODEL TYPES:
BG770 (PG) BG790 (HBG)
1/2
208/230/480/575V
HORSEPOWER:
VOLTAGE/PHASE:
24V OPEN
LOOP
24V HOLD
OPEN LOOP
24V COIL
24V COIL
24V COIL
24V COIL
24V COIL
(PUR)
CLOSE
C
NO
C
NO
L/S
CLOSE
L/S
(PUR)
(BK)
(BRN)
(BRN)
(GY)
(GY)
(R)
(R)
(BK)
TD1
TD2
CL
R1
(W)
(BK)
(BL)
(BL)
(BR)
(BL)
(PUR)
(BR)
(OR)
(OR)
(OR)
R1
R1
R2
14
14
13
3
13
2
J3
J4
8
9
OP
TD–2
5
1
10
1) REMOVE JUMPER WHEN TIMER TO
CLOSE IS USED.
2) REMOVE JUMPER TO CAUSE GATE
ARM TO CLOSE IMMEDIATELY UNLESS
HOLD OPEN LOOP IS ACTIVATED
CLOSE
CL
HOLD OPEN
LOOP–PRESENCE
(OPTIONAL)
REMOVE JUMPER WHEN
TIMER IS ADDED
TERMINAL BLOCK
WIRE CONNECTION FOR STANDARD CONTROL DEVICES
WIRE CONNECTION FOR STANDARD CONTROL DEVICES
IS CONNECTOR FOR 24V OPEN LOOP DETECTOR
IS CONNECTOR FOR 24V HOLD OPEN LOOP DETECTOR
ADD JUMPER WHEN USING CLOSE BUTTON
DO NOT USE WITH HOLD OPEN LOOP
OPEN LOOP
LOOP WIRES
(OPTIONAL)
HOLD OPEN LOOP
LOOP WIRES
(OPTIONAL)
TIMER
(OPTIONAL)
(YEL)
(YEL)
(W)
(BK)
(BK)
(BK)
AUTO/MANUAL
(OPTIONAL EQUIPMENT)
SEE NOTE 1
24V SEC.
115V
GEARBOX
HEATER
H1
(R)
(W)
(BK)
(GN)
L3
L2
L1
H2
(BK)
(W)
(W)
(W)
(W)
(W)
(W)
(W)
6
5
CL
CL
OP
OP
CL
1
2
1
2
4
3
4
3
5
6
OP
WIRE COLOR: 208V–(R),
230V–(OR), 480–(VT),
575V–(GY)
J1
J2
O/L IN
MOTOR
1
2
3
J
J
J
J
J
J
480V MOTOR
CONNECTION
3–PHASE
INCOMING LINE
(SEE NOTE 2)
208/230V
MOTOR
CONNECTION
MOTOR CONNECTION SAME
AS INCOMING POWER
4
5
8
2
1
3
9
6
7
4
5
8
2
1
3
9
6
7
WIRING DIAGRAM
01-G1015
FIELD WIRING & ADJUSTMENTS
CONTROL WIRING TYPE
NOTES:
To protect against fire and electrocution:
• DISCONNECT power BEFORE installing
or servicing operator.
• Replace ONLY with fuse of same type
of rating. Fuse 3.2A, 3AG, 250V, SLO-BLO
(1 of 2)
1