09/01 AWB8230-1412GB
Other functions
101
Other functions
Carrier frequency
High carrier frequencies result in less motor noise and lower power
losses in the motor but a higher dissipation in the power amplifiers
and more noise in the mains and motor cables. You should there-
fore set the carrier frequency as low as possible.
During DC braking, the carrier frequency is automatically reduced
to 1 kHz.
Initialization
Two different types of initialization are available:
• Clearing the fault history register
• Restoring the default parameter settings
To erase the fault history register or to restore the factory default
settings, proceed as follows:
X Ensure that 01 has been set under PNU b85.
X Enter 00 or 01 under PNU b84 (initialization).
X On the keypad, press both arrow keys and the PRG key at the
same time and keep them pressed.
X While holding the arrow and PRG keys, briefly press the OFF
key.
X Keep the other three keys pressed for the next three seconds
until the following flashing display appears: d00.
X Now release all keys.
Initialization is now complete.
Country version
Here you define the country-specific parameter set which will be
loaded during initialization (a PNU b84).
Frequency factor for display via PNU d07
The product of the value displayed under PNU d01 and this factor
is displayed at PNU d07.
PNU Name Adjustable in
RUN mode
Value WE
b83 Carrier
frequency
– 0.5 to 16 kHz 5
PNU Name Adjustable in
RUN mode
Value Function WE
b84 Initialization – 00 Clearing the fault history register 00
01 Restoring the default parameter settings
PNU Name Adjustable in
RUN mode
Value Function WE
b85 Country
version
– 00 Japan 01
01 Europe
02 USA
03 Reserved
PNU Name Adjustable in
RUN mode
Value Function WE
b86 Frequency
factor
j 0.1 to 99.9 The product of the value displayed under PNU d01 and this factor is
displayed at PNU d07. This value is also available on the FM terminal.
1.0
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