Notes On Special Applications; Hoist/Lifter; Fan - Lenze L-force 9400 E94ASHE Serie Manual De Instrucciones

6

Notes on special applications

6.1

Hoist/Lifter

Danger!
The use in lifts is only permissible if safety is ensured by approved external
components!
When using the controllers in goods lifts or similar, use appropriate barriers (e.g.
protective grids and photoelectric barriers) to ensure that no person may be
under hanging loads.
For applications with hanging loads only the V/F control (VFCplus) with
secondary minimum current control is permissible as encoderless operating
mode! In this case oversizing of the drive is compulsory and the permissible
power range is limited to devices of up to 55 kW!
6.2

Fan

Usually, fan applications must be provided with the flying restart circuit, for which the
following two points must be observed:
The flying restart process may not be carried out if the motor rotates with an extremely
high speed (above the rated speed) in reverse parameterised search direction.
During the flying restart process, the current controller is activated. Therefore, the
current controller must also be adapted to the motor in case of the encoderless
operating modes as described in the following sections.
Adaptation of the current controller to a Lenze motor:
1. Select motor in the »Engineer«.
2. Optimise the switching performance of the inverter
3. Activate flying restart mode.
Adaptation of the current controller to a motor of a third-party manufacturer:
1. Enter motor nameplate data.
2. Optimise the switching performance of the inverter
3. Set motor parameters.
4. Optimise current controller (e.g. by means of the oscilloscope function in the
»Engineer«).
5. Activate flying restart mode.
L
9400 HighLine | Commissioning guide
EDB94AxH6954 DE/EN/FR/ES/IT 1.0
Notes on special applications
Hoist/Lifter
39