P/N: 670-00029A
2/17/12
6
4.0 How it Works
Movotec
®
Q-Drive Lift Systems are comprised of three major component subsystems; the
motor drive, the pump, and the lift cylinders. This section will explain how each
subsystem works together to make the lift system extend and retract.
Movotec
®
Q-Drive Schematic
4.1 Extension Cycle
The motor drive consists of a motor controller, a 24 VDC gear motor, and a motor
switch. The motor controller converts AC line voltage to DC voltage to operate the 24
VDC gear motor. It also controls motor speed and is programmed to operate within
specific pump upper and lower limits. The motor switch is used to activate the 24 VDC
gear motor for lift system extension and retraction.
When the motor switch
“UP”
arrow button is depressed, the 24 VDC gear motor shaft
begins to rotate in a
(CCW)
counter-clockwise direction. Since the gear motor drive
shaft is mechanically coupled to the pump leadscrew shaft, the leadscrew shaft rotates in
the same
(CCW)
direction. As the gear motor continues to rotate in a
(CCW)
direction,
the threaded pusherblock moves up the leadscrew in the direction of arrow
“A”.
This
action drives fluid from the pressure elements, through the hydraulic tubing, and into the
