Shanghai STEP Electric Corporation
Chapter 8 Elevator Elevator Commissioning Guide
Has the lift car decoration finished? Is the current balance coefficient correct? If not sure, set the
lift car to half loaded, is there still leveling error?
b) If it is impossible to resolve the slipping problem for high-speed elevator, there are two
solutions as follows:
1. Install Encoder on one side of the speed governor to feedback the position to the
motherboard
2. Use creeping to absorb slip error, set F24 = 2 (analog signal with creeping) or F24 = 0
(multi-speed operation)
4．When using magnetic reed sensor, ensure adequate insertion depth. Check whether the leveling
spile of each floor has been inserted into within the red line of the sensor and check whether any
spile is installed tilt.
5．The leveling spiles have inconsistent lengths. The spile on the second floor is the baseline
length, the spiles of the other floors should be of the same length with that on the second floor, and
otherwise it may cause leveling problems.
6．The well self study is not carried out again after spiles adjusted.
8.10 Method for Adjusting Pre-Load Weighing
Compensation at Elevator Start
This integrated drive controller adopts advanced non-load sensor start compensation
technology, so even without pre-load weighing device, the elevator can still gain comfort at start.
See its start features as shown in Diagram 8.8.
Fig 8.8 Compensation characteristic diagrams for no load sensor startup
Although, under normal circumstances, AS380 series integrated drive controller does not
need pre-load weighing device. However, on some occasions, in order to obtain overload and full
load signal, analog signal weighing device is installed; or some elevator users have particularly
high comfort requirements for elevator starter and ask for pre-load weighing device for starting
compensation; there exists also another case: in case of using non-gear tractor, no Encoder
complies with non-pre-load starting compensation requirements, the elevator will need pre-load
devices, and inverter adopts torque compensation technology at start.
When pre-load weighing is used to compensate starting, it is necessary to set and adjust the
following parameters.
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