Supplementary Information; Application Example - Siemens COMBIMASTER Reference Manual

COMBIMASTER & MICROMASTER Integrated
REFERENCE MANUAL

9. SUPPLEMENTARY INFORMATION

9.1 Application Example

Set-up Procedure for a Simple Application
Application requirements:
COMBIMASTER used:
Procedure:
Siemens plc. 1999
© | G85139-H1731-U300-D2
Normal operating frequency set within range 15 - 50 Hz via an
external potentiometer. Counter-clockwise rotation required.
Any model.
1. Remove the link (if fitted) between control terminals 5 and 8.
2. Connect a simple on/off switch to control terminals 6 and 8 for
reverse rotation.
3. Connect a 4.7 kΩ potentiometer to the control terminals (see
Figure 4).
4. Set jumper JP301 ('V' - voltage) - see Fig.3(CS A), Fig.2 (CS B).
5. Set the internal and external potentiometers fully counter-
clockwise and then apply mains power and switch on.
6. Turn the internal potentiometer clockwise until the motor rotates at
a speed that approximates to 15 Hz.
7. The external potentiometer now has a range of between 15 Hz at
its lowest setting and 50 Hz at its highest setting.
67