Baumuller b maxx BM4400, Инструкция по эксплуатации

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Electrical data basic units
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07 Baumüller Nürnberg GmbH
64
of 358
3.4
1)
The rated value refer to a DC link voltage of 540 V, a control voltage of 24 V and an environmental temperature of 40 °C.
2)
The output voltage is a pulsed DC voltage. The operating range refers to the RMS value of the fundamental wave.


U
AC
3 0 V to

3
U
DC
2
----------- 10 V –
 
 

= without overmodulation of PWM
3)
Switching frequency of the inverter (adjustable).
4)
RMS value at an environmental temperature of 40 °C.
5)
At a rated supply voltage the unit provides rated output currents and maximum output currents. At input voltages above the rated supply
voltage the output currents at constant output power have to be reduced accordingly.
Output curre
nt [%]
Derating of the output current
Supply voltage [V]
Output curre
nt [%]
Derating of the output current
Supply voltage [V]
Ou
tput curren
t [%]
Derating of the output current
Supply voltage [V]
Ou
tput curren
t [%]
Derating of the output current
Supply voltage [V]
Figure 31: Derating of output current BM441X universal units
6)
Between 40° C and 55° C the output current must be reduced. See correction factors at changed operating conditions Z Environmental
temperature – on page 57.
7)
The peak output current is supplied for the maximum peak current period for the motor at the first acceleration (cold power unit). The in
fact possible overload time is dependent on the preload of the device and on the heat sink temperature, it is determined by the overload
monitoring of the device.
8)
These values are specified for the mounting to a heat-conducting surface with a thermal resistance of 0.115 K/W. The maximum per-
mitted temperature of the cabinet at the measuring point is 75 °C. See
Z Figure 82 – on page 181.
9)
There are other peak current limits, if BM4414 is in braking operation, only. The fol-
lowing peak currents are possible: 15 A at 4 kHz switching frequency and 10 A at
8 kHz switching frequency
NOTE!