Chief Manufacturing Electric Ceiling Lift SL-236 - Manual (Page 18)

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Instruction Manual SMART-LIFT 236 Electric Ceiling Lifts
Single Pole DOUBLE Throw (SPDT) Switch or
2 Dry Contact Closures, Momentary or Latching.
a. Connect the common wire from your switch to
terminal 13 (see Figure 20).
b. Connect the 'up' wire from your switch to terminal 12.
c. Connect the 'down' wire from your switch to
terminal 11.
Internal 12VDC Power Supply 2.5A Maximum
(+) = Terminal 4
(-) = Terminal 3
NOTE: Non regulated, open circuit voltage may exceed 18V.
Internal 24VAC Power Supply, 1.2A Maximum
(+) = Terminal 1
(-) = Terminal 2
Internal Dry Contact Closures:
Common = Terminal 12
Closed when lift reaches show position = Terminals 16 and 17
Closed when lift is fully closed = Terminals 18 and 19
Low Voltage Sensing:
a. Connect the positive of your power supply to terminal 7.
b. Connect the negative of your power supply to terminal 8.
NOTE: The lift will complete a full cycle even if the supply is
turned off before the lift reaches full extension.
NOTE: When the lift is in the lowered position using this option,
the lift will ignore all other commands until it has completed its
full cycle.
When the power supply is on, the lift will extend. When the
power supply turns off, the lift will retract.
Service position:
Momentary contact between terminals 9 & 10 will lower the
lift to the service position.
NOTE: To stop the lift before it reaches the service position, make
a momentary contact between terminals 11 & 13.
Figure 20. Dry Contacts