AFS 1100 - Motor Protection; Electrical Connection of AFS Air Purification Devices with Frequency Converters (Optional)

O r i g i n a l I n s t r u c t i o n M a n u a l f o r A F S A i r P u r i f i c a t i o n D e v i c e s
f o r R e m o v i n g O i l a n d E m u l s i o n M i s t
Produced By:
Version:
Valid from:
U. Burkhardt
1.05
01/11/2016
Neither transfer or reproduction of these documents nor application or disclosure
of their content are permitted without the explicit approval of AFS.
Violations will require compensation for damages.
Page 12 of 26
5.4.2 Motor protection
Various motor concepts are built in depending on the device type.
Please inform yourself regarding the built-in motor and its protection devices using the supplied
motor instruction manual or with AFS directly.
The protection devices and installation guidelines described in the motor instruction manual must
be heeded. Make sure that the motor does not restart by itself after a possible fault.
5.4.3 Electrical Connection of AFS Air Purification Devices with Frequency Converters (Optional)
The instruction manual for the frequency converter that is provided and the installation instructions contained
within them must be observed for air purification devices with frequency converters for regulating the flow
rate by controlling the rotation speed of the engine fan wheel.
When AFS air purification devices with frequency converters are operating, a lockable repair switch
must be placed inside the feed line before the frequency converter (DON EN 13053-6.3.1).
The AFS device and the frequency converter must not be serviced unless the frequency converter
and the AFS device have been shut off using the repair switch. While work is ongoing, the repair
switch must be secured with an individualized, lockable closure against unauthorized or accidental
restarting.
The repair switch and the frequency converter as well as the frequency converter and the AFS device
are to be connected by a qualified and competent specialist and in accordance with all current
guidelines and VDE regulations.
AFS partly parameterizes and presets the frequency converters. Adjustments that deviate from the
standard are documented in the instruction manual for the frequency converter, see Figure 8.
The currents in the frequency converter are not shut off when the frequency converter's motor is
turned off.
If the frequency converter's operating mode is set to "Motor ON" and the frequency converter is cut
off from the grid, the motor will start immediately once the frequency converter is back on the grid.
Figure 8: Example of basic setting on the frequency converter as altered by AFS