LiftMaster MGJ Medium-Duty Gear-Reduced Jackshaft Operator for Rolling Grilles and Shutters - Manual (Page 3)

C D
B2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE B2 WIRING TYPE WITH MONITORED SAFETY DEVICE
• Momentary contact to open, close and stop.
• Open override that reverses when closing by any opening
device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring (option D) when
Monitored Safety Device is installed. (See accessories
page for Monitored Safety Devices)
• Timer to Close (TTC) feature not available.
Requires a non-monitored safety device.
• Momentary contact to open, close and stop.
• Open override that reverses when closing by any opening
device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring when Monitored
Safety Device is installed. (See accessories page for
Monitored Safety Devices)
• Timer to Close (TTC) feature available.
Start with operator in factory default C2 mode.
Press and hold the LEARN and CLOSE buttons until the LED goes
out (approximately 3 seconds).
TO PROGRAM
TTC LED
AUX ANT
R27
L5
TP1 C20 C9
C29
R24
J2
C21
J4
K2 LT
P1
C32 U4 D7 D6 D5 D4
R25 U1 C31
D14
C18
014A1030
^^^^
D9
LEARN 1 2 3 4 5 6 7
LMEP1 LMEP2 INTRLK COM STOP CLOSE OPEN
STOP CLOSE OPEN
AUX ANT
Logic Board Electrical Box
D14 LED
LEARN
1 2 3 4 5 6 7
STOP CLOSE OPEN
NO PROGRAMMING REQUIRED
NON-MONITORED SAFETY DEVICE MONITORED SAFETY DEVICE
Sensing
Edge
Photo Eye
B A S I C P R O G R A M M I N G
3