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Switching frequency limitation
￭
The certificate of the Ex motor typically requires that you set a minimum limit for the
switching frequency of the drive.
For ABB Ex motors, use parameter 95.15 to set the required minimum switching
frequency. For more information, refer to the drive firmware manual.
For Ex motors supplied by other motor manufacturers, contact the motor manufacturer
for the correct value and your local ABB representative for instructions on how to
make the parameter setting in the drive.
Other recommended settings
￭
ABB recommends that you also set these parameters to improve the safety of the
application:
•
minimum and maximum speeds (parameter group 30)
•
maximum current, power and torque (group 30)
•
acceleration and deceleration times
•
stall protection (parameters 31.24...31.28)
•
motor load curve (parameters 35.50...35.55)
•
motor cable protection (parameters 35.60...35.62)
For more information, see the drive firmware manual.
FSO module
If you use an FSO module (option +Q972 or +Q973) in the safety system configuration,
set the parameters according to the system requirements. Example values are shown
in this section.
The person who configures the safety functions in the FSO module must be a
competent person as required by IEC 61508-1 clause 6. In this context, the person
must have expertise and knowledge of functional safety, the safety functions and the
configuration of the FSO module. ABB has training courses on the FSO module.
You must use the Drive Composer pro PC tool to set the FSO module parameters. You
also need a password to be able to download the configuration to the FSO module
from Drive Composer pro. For the default password of the FSO module, see the
applicable FSO module user's manual. For more information on the Drive Composer
pro PC tool, see
Drive Composer start-up and maintenance PC tool user's manual
(3AUA0000094606
Note: When the drive is running/ modulating, you cannot change the password, adjust
parameter values, or upload or download the FSO configuration file.
Follow the configuration steps described in the applicable FSO module user's manual,
chapter Configuration.
There are parameters that you must always set when you use the FSO module, and
parameters that are related only to some safety functions. This section lists the
parameters that are related to options +L537+Q971+Q973 (with FSO-12) and
+L537+Q971+Q972 (with FSO-21).
[English]).
Parameter settings 37
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