Owner's Manual

Congratulations on purchasing a quality, LiftMaster Logic 4 Commercial Door Operator. Your new operator is capable of operating up to
12 cycles per hour or 50 cycles per day. It is equipped with a built in radio receiver that is compatible with our existing 315 MHz product
line as well as a Timer-to-Close (TTC) feature that can be enabled when LiftMaster Commercial Protector System
®
is installed and aligned
properly.
INTRODUCTION
INTRODUCTION TO PROGRAMMING
SLOT 1
RADIO
SLS
MRT MID TTC
DATA
24VAC
24VAC
LMEP:
EDGE:
OPEN
CLOSE
STOP
COMMON
RELAY A
RELAY B
SBC
MAS
COMMON
TIMER
DEFEAT
POWER
TIMER
ENABLE
123
FSTS
DIAG
OPTN
PROG
TTS
E2
D1
C2
B2
CLS
OLS
MID
REV
STD
SLOT 2
MOTOR
DIRECTION
3-PHASE 1-PHASE
Selector Dial
(used for programming
and selecting wiring type)
Main Motor Control Harness Connection
Maximum Run
Timer Button
Optional Auxiliary
Card Receptacles
Mid Stop Learn Button
Timer-To-Close
Learn Button
Radio Learn Button
Open Button
Close Button
Stop Button
Control Wiring
Terminal Block
Motor Direction Jumper
Maintenance Alert
System Button for
Programming
Single Phase &
Three Phase Jumper
BASIC PROGRAMMING
LOGIC BOARD OVERVIEW
LOGIC BOARD PUSH BUTTONS (OPEN, CLOSE, STOP)
Open, Close and Stop buttons are mounted directly on the logic
board. Thus, making it easy to program as well as have door
control at the electrical box.
Either the stop control or a jumper MUST be wired between
terminals 4 and 5 for the on board push buttons to function.
NOTE: Before programming the logic board, set the operator’s
open and close limits. LEDs on the logic board are provided to
assist setting the limits. As each limit is activated the
corresponding LED will light up. The abbreviations are Open Limit
Switch (OLS), Close Limit Switch (CLS) and Sensing Limit Switch
(SLS). Refer to page 19 for limit switch adjustment instructions.
When power is applied to the operator, the following LED’s will
illuminate: STOP, CLOSE, OPEN, LMEP, 24Vac, RADIO, DATA,
TIMER ENABLE, OLS MID, SLS, CLS, and MAS. Once the power
up process is completed (approximately 2-3 seconds) only the
appropriate LED’s will continue to be lit (i.e., STOP, 24Vdc, limit
LED(s) if limit(s) is activated).
NOTE: When the power up process is over, the MAS LED will
blink a code indicating the version of firmware. If the selector dial
is in the DIAG, OPTN, or PROG position, the MAS will not provide
this code. After the code has been provided the MAS LED will go
out.
LOGIC BOARD LED OVERVIEW
Many programmable functions require that a LiftMaster Entrapment Protection (LMEP) device be installed in order to function.
Refer to the Entrapment Protection section.
2