LiftMaster DH DJ Locksensor Mechanical Manual

LiftMaster DH Manual

LiftMaster DH manual content summary:

  • LiftMaster DH | DJ Locksensor Mechanical Manual - Page 1
    tension when closing, the Lock Sensor will stop the operator. Press close button and run until the operator shuts off (to unlock door when load removed). LOCK SENSOR (D1 WIRING) WIRING DIAGRAM & INSTRUCTIONS Model: DH, DJ and DH/J ADJUSTMENT FINE ADJUSTMENT • To increase opening force, tighten
  • LiftMaster DH | DJ Locksensor Mechanical Manual - Page 2
    Move Red wire from terminal 2 to terminal 3. NOTE: Be sure to supply a STOP button and safety edge after conversion. NOTES: 1) TO REVERSE MOTOR DIRECTION: INTERCHANGE PURPLE & GRAY MOTOR LEADS AT CONTACTOR 1 & 3. 2) TRANSFORMER PRIMARY & RELAY VOLTAGE SAME AS LINE VOLTAGE. 3) THREE PHASE UNITS MAY
  • LiftMaster DH | DJ Locksensor Mechanical Manual - Page 3
    Move Red wire from terminal 2 to terminal 3. NOTE: Be sure to supply a STOP button and safety edge after conversion. NOTES: 1) TO REVERSE MOTOR DIRECTION: INTERCHANGE PURPLE & GRAY MOTOR LEADS AT CONTACTOR 1 & 3. 2) TRANSFORMER PRIMARY & RELAY VOLTAGE SAME AS LINE VOLTAGE. 3) THREE PHASE UNITS MAY
  • LiftMaster DH | DJ Locksensor Mechanical Manual - Page 4
    KEYSWITCH WITH SPRING RETURN TO CENTER AND STOP BUTTON STANDARD 1234 2 OR MORE 1234 KEY LOCKOUT 1234 Open Close Stop Open Close Stop Open Close Stop Open Close Stop Keyswitch ALL CONTROL WIRING TYPES ALL CONTROL WIRING TYPES 2 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO
  • 1
  • 2
  • 3
  • 4

APPLICATION REQUIREMENTS
This wiring modification is available to models DJ and DH/J
Standard-Duty operators with 24Vac control circuits and “D1”
type wiring.
NOTE:
If C2 or B2 wiring is desired refer to conversion
instructions on pages 2 and 3.
FUNCTIONS
This modification stops the operator when extra tension is
sensed on the door from the mechanical door lock, obstruction
or extensive binding.
OPERATION
When the operator senses extra tension when closing, the Lock
Sensor will stop the operator. Press close button and run until
the operator shuts off (to unlock door when load removed).
LOCK SENSOR (D1 WIRING)
WIRING DIAGRAM & INSTRUCTIONS
Model: DH, DJ and DH/J
ADJUSTMENT
FINE ADJUSTMENT
To increase opening force, tighten wing nut.
To decrease opening force, loosen wing nut.
COURSE ADJUSTMENT (if required)
1. Release spring pressure on pivot arm.
2. Loosen but do not remove mounting screws (2).
3.
Fully tension final reduction chain and rotate Lock Sensor
until switch is in activation mode.
4.
Tighten mounting screws (2) to secure Lock Sensor position.
5. Repeat fine adjustments.
Lock Sensor
Assembly
To adjust opening force
tighten or loosen
wing
nut accordingly
Chain Idler Sprocket
must engage top side
of reduction chain
Final Reduction
Chain
Lock Sensor Switch
(held to normally closed)
Mounting
Screws
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect electric power to operator BEFORE
adjusting Lock Sensor.
FIGURE 1