P/N: 670-00029A
2/17/12
32
intermittently and is rated for a 10% duty cycle. This means that if the lift system
activated for 1 minute, it must be at rest for at least 9 minutes before the next operation.
It is also important to note that the maximum system on-time is 1 minute.
The duty cycle has been established to prevent the gear motor and motor controller
electronics from overheating. If the system is operated beyond the published duty cycle,
the gear motor and motor controller electrical components will get hot. The Movotec
®
Q-Drive motor controller is equipped with a duty cycle monitoring function that forces
the motor controller to stop functioning before any damage can occur. When the duty
cycle monitoring function is activated, the motor controller will not allow system to be
energized until the unit cools down.
Repeated cycling beyond the published duty cycle may cause the gear motor and motor
controller to malfunction or stop functioning. It may also cause the pump components to
prematurely wear, thus reducing the life of the lift system. To avoid damaging the lift
system, the duty cycle should never be exceeded.
8.7 Deceleration Zone
The Movotec
®
Q-Drive motor controller is programmed to slow down the speed of the
gear motor just before the pump reaches its upper and lower pump mechanical limits.
This deceleration zone provides a good indicator for the user that the lift system is about
to reach its fully extended or retracted height.
8.8 System Reset Procedure
The following procedure should be used to reset a Movotec
®
Q-Drive motor controller
and pump to their respective “
home
” positions. The procedure should be performed only
if the following conditions exist:
1.)
A new or replacement controller is introduced to an existing motor driven
system.
The Movotec
®
Q-Drive motor and motor controller leaves our manufacturing
facility programmed as a matched set. If a different motor controller is used
other than the one that was sent with the original unit, it must be matched and
reset with the original motorized pump using the system reset procedure below;
the controller will likely force this procedure when introduced to a new system.
2.) The motor cable is disconnected from the gear motor.
If this happens, reconnect the motor cable to the gear motor. Perform the system
reset procedure below to ensure that the motorized pump will function within its
preprogrammed limits.