LiftMaster GH GH LOGIC VERSION 2 Manual - Page 11

Logic Control Ver. 2.0 1 Phase Wiring Diagram

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LOGIC CONTROL (VER. 2.0) 1 PHASE WIRING DIAGRAM 1837-1 230 VOLT MOTOR CONNECTION NOTE: Contactor 1 PH / 3 PH jumper should be in 1 PH position. 115 VOLT MOTOR CONNECTION Note: 1) See Ownerʼs Manual for Dip Switch Functions and Programming Procedures 2) TO REVERSE MOTOR DIRECTION 115 VOLTS: ALWAYS EXCHANGE PURPLE & GRAY ALL VOLTS & PHASES. 230 VOLTS: INTERCHANGE PURPLE (E10) & GRAY (E15) WIRES AT LOGIC BOARD. * - BLUE WIRE MUST BE INSULATED ON 230V 1PH. **- Transformer Primary Voltage same as Line Voltage.. 11

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11
LOGIC CONTROL (VER. 2.0) 1 PHASE WIRING DIAGRAM
1
8
37-1
115 VOLT MOTOR CONNECTION
230 VOLT MOTOR CONNECTION
Note:
1)
See Ownerʼs Manual for Dip Switch Functions and Programming Procedures
2)
TO REVERSE MOTOR DIRECTION
115 VOLTS:
ALWAYS EXCHANGE PURPLE & GRAYALL VOLTS & PHASES.
230 VOLTS:
INTERCHANGE PURPLE (E10) & GRAY (E15) WIRES AT LOGIC BOARD.
* - BLUE WIRE MUST
BE INSULATED ON 230V 1PH.
**- Transformer Primary Voltage same as Line Voltage..
NOTE:
Contactor 1 PH / 3 PH jumper
should be in 1 PH position.