Baumuller BUS 6 VC - 7.4 Pulse Width Modulation

Parameter
40 V-Controller (BUS 6 VC)
5.03047.01 Baumüller Nürnberg Electronic GmbH & Co. KG
7.4 Pulse Width Modulation
Function
The parameters of the pulse width modulation module serve to display the values supplied by the current
controller und the change of the PWM frequency.
Parameter overview
Parameter description
P100 PWM phase L1
P101 PWM phase L2
P102 PWM phase L3
These parameters display the angle α of the relative power transistors for the individual phas-
es.
This means: +100,00 % to a regulation angle of α = +100 %
0 to a regulation angle of α =0 %
-100,00 % to a regulation angle of α = -100 %
The resultant voltage (middle values) at the power supply terminals can be calculated as fol-
lows:
Whereby U
ZK
the intermediate circuit voltage is displayed via parameter P610. Due to the un-
derlying cycle frequency this voltage cannot be measured on universal devices.
Parameter Name Range
min. ... max.
Unit Display
only
P100 PWM phase L1 -100,00 ... +100,00 %
!
P101 PWM phase L2 -100,00 ... +100,00 %
!
P102 PWM phase L3 -100,00 ... +100,00 %
!
P103 PWM frequency 4,0 ... 8,0 kHz
U
L12
U
ZK
PWM phaseL1 PWM phaseL2–
maximum total range
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⋅ P610
P100 P101–
200 00 %,
----------------------------------
⋅==
U
L23
U
ZK
PWM phaseL2 PWM phaseL3–
maximum total range
-------------------------------------------------------------------------------------------
⋅ P610
P101 P102–
200 00 %,
----------------------------------
⋅==
U
L31
U
ZK
PWM phase L3 PWM phase L1–
maximum total range
----------------------------------------------------------------------------------------------
⋅ P610
P102 P100–
200 00 %,
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⋅==