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Designate one hoist as “LEFT” and one hoist as “RIGHT,” utilizing the terminal strip
markings as a guide. The terminal strip identified with LT1, LT2, LT3 must be wired
to the corresponding terminals at the control panel labeled LT1, LT2, LT3. It is
critical the wires from the hoist’s terminals match the corresponding terminals at
the control panel (again, refer to Figure K).
9.3 PHASING NOTE
Do not confuse crossed keyswitch direction of travel with improper phasing, or
improper phasing with crossed keyswitch direction of travel.
The phasing must be corrected before any changes are made at the keyswitch
terminal. Proper phasing can be identified by matching motor direction of travel
with the limit switch operation for that direction of travel. For example, if the motor
is turning the cable drum in the “UP” direction, and the “UP” limit stops that direction
of travel, the unit is phased properly. The same logic applies to the “DOWN”
direction functioning with the “DOWN” limit switch.
The phasing check of the Mat Mover
®
should be performed before the cable and
load bar are installed. Failure to confirm proper phasing may result in the load bar
overriding the upper limit switch, causing structural damage to the Mat Mover
®
,
building structure, or both!
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