Parameter settings
Contents of this chapter
This chapter lists the parameters that you have to set for the ATEX-certified motor thermal
protection functions in this manual.
WARNING!
If there is missing or inaccurate information, do not operate the motor before you
have made sure that the parameter settings are correct.
Drive / inverter
■
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, see 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.
■
Reset method and status indications
To configure a manual reset for the temperature protection function in the drive, you can
set either the STO indication (parameter 31.22 STO indication run/stop) or the motor
temperature indication so that it generates a fault.
31.22 STO indication run/stop
Set this parameter to value Fault/Fault or Fault/Warning.
Parameter settings 41
5