STEP AS380 Series User Manual

Instruction Manual for AS380 Series Elevator Integrated Drive Controller
Chapter 8 Elevator Elevator Commissioning Guide
211
If the steel wire rope tension is uneven, some ropes will be tight but some loose to cause
jitter or oscillation in the elevator operation, and thus will affect the start, high-speed
operation and stop.
In commissioning, the elevator can be stopped on the middle floor. Pull every steel wire
rope manually with the same force on the car top. If the pull distance is roughly the same, the
steel wire ropes are under the uniform tension; if not, ask the installer to adjust the tension of
steel wire ropes.
In addition, steel wire ropes are tied in the circle before installation, so with response
torsional stress. Installed directly, the elevator operation will prone to vibration. Therefore,
before installation, fully release such torsional stress.
4) Lift Car Installation Fastening and Sealing
When the elevator is running at high speed, the entire lift car will be under a great force.
If the lift car bracket or the lift car wall is not well fastened, it will generate dislocation in
high speed operation and have the lift car vibrate. The buzzer acoustic resonance of the lift
car is generally related to the fastening degree of the installation, the sealing of the lift car
and the well.
5) Anti-Mechanical Resonance Device
 Pad rubber gasket under tractor shelf girder;
 Use wood chuck or other similar devices at the pigtail of the lift car steel wire rope to
eliminate vibration.
 At present, for decorative effects, some lift cars use new lightweight materials, which
reduces the weight of the lift car and produces "mechanical resonance ", especially in
high speed elevator. When such phenomenon occurs, add appropriate load on the lift car
to change its natural frequency and eliminate mechanical resonance.
6) Tractor
Sometimes improper assembly of tractor leads to poor mesh between turbine worm and
gear; or long use wares the turbine worm and gear, causes axial movement in acceleration or
deceleration and results in the step feeling in acceleration or deceleration.
7) Lift car balance
Sometimes, the design or installation or other reasons lead to uneven weight of the lift
car to slide to one side. In the elevator operation, the guide shoe tightly rubs the slideway
surface, which generates jitter or vibration. At this point, add a block on the lighter side of the
lift car and test.
8) Other
Such as the parallelism of traction wheel and guide wheel, adjustment of run-time brake
clearance, etc.
(II) Adjust Electrical Factors
Electrical aspects that affect comfort mainly include: the performance of the speed curve,
electromagnetic interference of analog signal speed reference signal (if using analog signal speed
reference method), Encoder feedback signal quality and inverter drive performance. Our later
discussion is established on that all other factors that may affect comfort have been adjusted. How
can we adjust the parameters relating to this integrated drive controller, to improve the drive
performance of the system and to improve the elevator comfort.
1) Adjust starting comfort

STEP AS380 Series Specifications

General

Brand	STEP
Model	AS380 Series
Category	Controller
Language	English