Shanghai STEP Electric corporation
7.4 Basic Parameter Setting
For each specific project, basic parameters of the Inverter shall be set according to the
specifications of the traction machine before application. Since
-S3 Inverter,
specifically designed for elevators, meets the practical requirements of elevators from the
design stage, most of the factory (default) settings need no change. The parameters that
need field modifications or changes are far less than those described here. Therefore, it is
very convenient to set the parameters of the Inverter on site. This section will describe the
basic parameters that shall be set according to the specifications of the traction machine
before application of the elevator. Only after these parameters have been set, may
autotuning of the motor be performed and then elevator commissioning and adjustments
to running performance. The adjustments will be described in the next sections. It is
worthwhile to point out that the parameters other than the following take the default
settings.
7.4.1 Parameter Setting for Selection of Speed Control Mode
Only one parameter is used for the selection of speed control mode, namely, A04. A04
may be used to set the control mode as analog voltage, analog current or multi-step, as
shown in the following table.
Function
Code
Name
Content
Range
Unit
Default
Remarks
速度给定
方式
A04
Operation
Mode
To set the speed control mode
of the Inverter as:
0: digital multi-step mode
1: analog voltage input (AI1)
2: reserved
3: analog current input (AI3)
0 / 1 / 2 /
3
× 1
7-
12
A
pp
lication of Elevato
r
7.4.2 Parameter Setting of the Traction Machine
E parameters are concerned with the traction machine and the encoder, and are very
important to the Inverter. With any wrong setting, there may be vibration of the elevator, or
it may even be unable to work, or damages to the equipment or even accidents may occur.
Therefore, each of the following parameters shall be carefully set according to the
nameplate. Generally, other E parameters than listed below may use the default settings.
E11 will be automatically set during autotuning of the motor, and need no manual setting.
If autotuning is not desired with a replaced Inverter, the setting of E11 may be read from
the old Inverter and write into the new one.