Siemens G85139 User Manual

Page 16

English

3. FRONT PANEL CONTROLS & BASIC OPERATION

G85139-H1750-U049-B

26/09/97

3.2.3 Basic Operation - 10 Step Guide

The basic method of setting up the inverter for use is described below. This method uses a digital frequency
setpoint and requires only the minimum number of parameters to be changed from their default settings. It
assumes that a standard Siemens four-pole motor is connected to the inverter

(see section 3.2.1 if a different

motor type is being used).

Step /Action

Button

Display

1. Apply mains power to the inverter.

The display will alternate between the actual frequency (0.0 Hz) and the
requested frequency setpoint (5.0 Hz default).

2. Press the parameterisation button.

3. Press the

∆

button until parameter P005 is displayed.

4. Press P to display the current frequency setpoint (5 Hz is the factory
default setting).

5. Press the

∆

button to set the desired frequency setpoint

(e.g. 35 Hz).

6. Press P to lock the setting into memory.

7, Press the

∇

button to return to P000.

8. Press P to exit the parameterisation procedure.

The display will alternate between the current frequency and the requested
frequency setpoint.

9. Start the inverter by pressing the RUN button.

The motor shaft will start to turn and the display will show that the inverter
is ramping up to the setpoint of 35 Hz.

Note
The setpoint will be achieved after 7 seconds (35 Hz/50 Hz x 10 s *).

If required, the motor’s speed (i.e. frequency) can be varied directly by
using the

∆

∇

buttons. (Set P011 to 001 to enable the new frequency

setting to be retained in memory during periods when the inverter is not
running.)

10. Switch the inverter off by pressing the STOP button.

The motor will slow down and come to a controlled stop (takes 7 s **).

Default ramp-up time is 10 s to reach 50 Hz (defined by P002 and P013).

** Default ramp-down time is 10 s from 50 Hz (defined by P003 and P013).