LiftMaster T Manual Del Usuario página 3

INSTALLATION
FOR MODELS H AND J
DO NOT connect the power or activate the operator until instructed
to do so.
REMOVE LOGIC CONTROL BOARD
NOTE: Label wires for reinstallation. See enclosed wiring diagram
for proper connections.
1. Disconnect power from the operator.
2. Disconnect all wires from the board:
• Control Wiring Terminal Block
• System Wiring Connector (J3)
• Coaxial Antenna
3. Remove option boards on slots 1 and/or 2 (if present) set aside.
4. Remove the logic control board from its four mounting posts
using needle nose pliers or a flathead screwdriver.
LOGIC 5.0 CONTROL & POWER BOARDS OVERVIEW
3 PHASE POWER BOARD
Connector
harness (J9)
Terminal Block
L1
BLACK
T_COMM
WHITE
L2
WHITE
T_460V T_230V
PURPLE or 575V
L3
GRAY
Brake
PURPLE
harness
Motor
harness
To reduce the risk of SERIOUS INJURY or DEATH:
• Disconnect electric power at the fuse box BEFORE proceeding.
• ALL electrical connections MUST be made by a qualified
individual.
• Upon completion of kit installation, the area MUST be cleared
and secured. At that time the unit may be returned to service.
REMOVE L1, L2, & L3 TERMINAL BLOCK & POWER BOARD
IMPORTANT NOTE: Be sure ALL electric power is disconnected
BEFORE proceeding.
1. If the operator has an existing modifications bracket remove
and set aside.
2. Remove incoming wires from L1, L2, L3 and ground terminal.
3. Remove L1, L2 and L3 board support bracket and replace with
the one provided.
4. Unplug the motor harness, connector harness (J9), and brake
connector (if present) from power board.
5. The removal of cable ties will be required. Use caution not to
damage wires.
6. Disconnect all wires from the power board.
7. Use needle nose pliers to remove power board from standoffs.
The power board and terminal block assembly should come
out as one piece.
LOGIC 5.0 CONTROL BOARD
Slots for option boards
Current Sense
Motor direction
jumper
Coaxial antenna
connecter
System wiring
connector (J3)
3
Control wiring
terminal block