Motion 3000ES Escalator Control
8 Manual # 42-02-E001
Drive Parameters
If you have a VVVF Control, selected drive parameters should be checked at this time. One of
two drives may be used.
Controllers equipped with CT Emerson drives use dynamic braking resistors installed in a sepa-
rate resistor cabinet. The dynamic braking resistors dissipate energy produced by the motor
under certain loading conditions. Controllers with KEB/TorqMax drives do not use the
dynamic braking resistors.
Operation Description when Equipped with a Drive
Normal Mode (Single Speed): Up Going: Drive is always in control. Energy savings
are realized when the escalator has a light load because the drive can provide less voltage and
current while maintaining contract speed. When the load increases, the drive automatically
increases voltage and current (only 2 modes—rated current and less current, not variable).
Down Going: At start, drive (KEB drive only) accelerates escalator to contract speed (soft start
to 60Hz). Once contract speed is reached, the drive drops PM and picks PML. This switches
power to the line. In this configuration, power can be put back on the line if the load of the down
going escalator causes the motor to act like a generator. CT drives use dynamic braking resistors
to dissipate energy as heat.
Inspection speed is adjustable.
Energy Saving Modes
(when code allows speed change during operation)
Sensors are mounted at the top and bottom entries to the escalator in order to detect someone
approaching or exiting the escalator.
Energy Saving Mode
(Two Speeds, Starting Direction Only) After there has
been no activity for a user-defined period, the escalator will change from high speed to low
speed. When an entry detector senses someone approaching the escalator, the speed is
increased from low to high. An additional timer can be set to stop the escalator completely after
there has been no activity for a user-defined period at slow speed. In this case, when an entry
detector senses someone approaching the escalator, the escalator changes from a stopped con-
dition to high speed in the starting direction only.
Intelligent Mode
(Two Speeds, Two Directions Based on Entry Detection)
After there has been no activity for a user-defined period, the escalator will change from high
speed to low speed. When an entry detector senses someone approaching the escalator, the
speed is increased from low to high. An additional timer can be set to stop the escalator com-
pletely after there has been no activity for a user-defined period at slow speed. In this case,
when an entry detector senses someone approaching the escalator, the escalator changes from a
stopped condition to high speed AND goes in the direction determined by the entry detector.
To Next Page
Loading...