LiftMaster GH GH LOGIC 3 Manual - Page 4

Operator Specifications - nema 4

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OPERATOR SPECIFICATIONS MOTOR TYPE Continuous Duty HORSEPOWER 1/2, 3/4, 1, 1-1/2, 2 and 3 HP SPEED 1725 RPM VOLTAGE 115/220/230V 1 Phase, 208/230/380/460/575V 3 Phase CURRENT See Motor Nameplate ELECTRICAL TRANSFORMER 24Vac Secondary CONTROL STATION NEMA 3-Button Station Open/Close/Stop w/LED WIRING TYPE C2 (Standard) Momentary contact to OPEN and STOP, constant pressure to CLOSE, plus wiring for sensing device to reverse and auxiliary devices to open and close with open override. See pages 16 and 17 for optional wiring types and operating modes. LIMIT ADJUST Linear driven, fully adjustable screw type cams MECHANICAL DRIVE REDUCTION 45:1 for 1/2, 3/4, and 1 HP 44:1 for 1-1/2, 2 42:1 for 3 HP OUTPUT SHAFT SPEED 38.3 for 1/2, 3/4, and 1 HP 39.2 for 1-1/2 and 2 HP 41.1 for 3 HP DOOR SPEED 4 - 10" per second depending on door BRAKE Solenoid actuated disc brake HOIST WHEEL Standard mounting on left or right side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for manual door operation CLUTCH (Optional Adjustable torque limiter type SAFETY PHOTO EYES (Optional CPS-L): Through beam or retro reflective devices used to provide non-contact safety protection SAFETY EDGE (Optional): Electric or pneumatic sensing device attached to the bottom edge of door 4

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4
SAFETY
DISCONNECT:
. . . . . . . . . . . Floor level chain hoist with electrical
interlock for manual door operation
CLUTCH (Optional):
. . . . . . . . . . . Adjustable torque limiter type
SAFETY PHOTO EYES (Optional CPS-L):
Through beam or retro
reflective devices used to provide non-contact safety protection
SAFETY EDGE (Optional):
Electric or pneumatic sensing device
attached to the bottom edge of door
MOTOR
TYPE:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous Duty
HORSEPOWER:
. . . . . . . . . . . . . 1/2, 3/4, 1, 1-1/2, 2 and 3 HP
SPEED:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1725 RPM
VOLTAGE:
. . . . . . . . . . . . . . . . . . . . . . . 115/220/230V 1 Phase,
208/230/380/460/575V 3 Phase
CURRENT:
. . . . . . . . . . . . . . . . . . . . . . . .See Motor Nameplate
ELECTRICAL
TRANSFORMER:
. . . . . . . . . . . . . . . . . . . . . . .24Vac Secondary
CONTROL STATION:
. . . . . . . . . . . . . . . NEMA 3-Button Station
Open/Close/Stop w/LED
WIRING TYPE:
. . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
Momentary contact to OPEN and STOP, constant pressure to
CLOSE, plus wiring for sensing device to reverse and auxiliary
devices to open and close with open override. See pages 16 and
17 for optional wiring types and operating modes.
LIMIT ADJUST:
. . . . . . .
Linear driven, fully adjustable screw
type cams
MECHANICAL
DRIVE REDUCTION:
. . . . . . . . . . . . .45:1 for 1/2, 3/4, and 1 HP
44:1 for 1-1/2, 2
42:1 for 3 HP
OUTPUT SHAFT SPEED:
. . . . . . . . . .38.3 for 1/2, 3/4, and 1 HP
39.2 for 1-1/2 and 2 HP
41.1 for 3 HP
DOOR SPEED:
. . . . . . . . .4 - 10" per second depending on door
BRAKE:
. . . . . . . . . . . . . . . . . . . . . Solenoid actuated disc brake
HOIST WHEEL:
. . . . . . .Standard mounting on left or right side
OPERATOR SPECIFICATIONS