Wieland
podis
system
Manual V 1.03 / ref. no. 00.000.0059.0 / 28.03.2001
6.6.2
Parameter description for MFI
Screenshot of default parameters for
podis
MFI
PWM frequency
Adjustable value range (decimal) 4 kHz, 8 kHz, 12 kHz,
16 kHz, 20 kHz
Value range (physical variable)
4 kHz, 8 kHz, 12 kHz,
16 kHz, 20 kHz
Factory setting:
4 kHz
Recommended value:
application-dependent
A variation in the PWM frequency is used to change either the
power or noise generation. Lower frequencies enable a higher
temperature-limited output power in connection with greater
noise generation (see ”Derating”).
Motor thermistor
Adjustable value range
Enable/disable PTC
Value range
Enable/disable PTC
Factory setting
Enable PTC
Recommended values:
For motor protection: Enable PTC
A connected thermistor (PTC) is evaluated depending on this
setting.
To guarantee motor protection, a
thermistor must be connected and this
parameter must be set to ”Enable PTC”.
CAUTION