ZIEHL-ABEGG ZETADYN 3C User Manual

15 Special functions
15.1 Changing the Clock frequency
The factory setting of the frequency converter’s clock frequency depends on the size and the motor
type:
Size Synchronous motor Asynchronous motor
ZETADYN 3xx011
ZETADYN 3xx013
ZETADYN 3xx017
ZETADYN 3xx023
ZETADYN 3xx032
ZETADYN 3xx040
ZETADYN 3xx050
ZETADYN 3xx062
ZETADYN 3xx074
Clock frequency 16 kHz auto
(Parameter M_PWM=Auto)
Clock frequency 16 kHz auto
(Parameter M_PWM=Auto)
Information
If necessary the clock frequency can be changed continuously between 2.5 …. 16 kHz in the
Power section menu.
For release the ESC key must be pressed for approx. 5 s. until ZIEHL-ABEGG-Intern FREIGABE
appears in the display.
Information
Only change the clock frequency after consultation with the ZIEHL-ABEGG hotline. Consulta-
tion can clarify the effect of changing the clock frequency on the service life of the frequency
inverter.
CAUTION!
Caution!
Increasing the clock frequency causes
•
a performance reduction of the frequency inverter (see Technical Data chapter)
•
a greater power loss and thus increased heating of the frequency inverter
The service life of the frequency inverter is negatively influenced by the higher temperatures.
15.1.1 Fixed presetting of the clock frequency (Menu Power sectionl/M_PWM=Fix f_PWM)
The cycle frequency of the frequency inverter is 8 kHz after setting at the factory. This can be
changed, if necessary, in the Power Unit/f_PWM menu continuously between 2.5 ... 10 kHz.
15.1.2 Automatic adjustment if the clock frequency (Menu Power sectionl/M_PWM=Auto)
The inverter works with the clock frequency which is configured in the the enu
Power section/f_PWM_H.
If required the inverter switches to the switching frequency set in the menu "Power section/f_PWM".
15.2 Encoder offset-alignment
CAUTION!
Caution!
Make sure you perform an encoder alignment if you operate a synchronous motor. Operating
the motor without encoder-offset alignment can cause uncontrolled motor movements.
Traveling is prohibited before an absolute encoder offset alignment has been performed!
Information
In ZIEHL-ABEGG motors, the absolute value encoder is already calibrated to the offset value
"0" ex works.
It is no longer necessary to perform an absolute encoder offset alignment!
Original operating instructions
ZETADYN 3C Special functions
R-TBA08_03-GB 1619 Part.-No. 00163322-GB
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ZIEHL-ABEGG ZETADYN 3C Specifications

General

Brand	ZIEHL-ABEGG
Model	ZETADYN 3C
Category	DC Drives
Language	English