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
86
of 358
3.4
1)
All rated values refer to a DC link voltage of 540 V, a control voltage of 24 V and an environmental temperature of 40 °C.
2)
Using the power choke listed in Z Power chokes – on page 300 at a power supply with U
K,power supply
= 0.4 %.
3)
The output voltage is a pulsed DC voltage. The operating range refers to the RMS of the fundamental wave.

U
AC
3 0 V to

3
U
DC
2
----------- 10 V –
 
 

= without overmodulation of the PWM.
4)
Switching frequency of the inverter (adjustable).
5)
RMS at an environmental temperature of 40 °C.
6)
At rated power supply voltage the unit supplies rated / maximum output currents. With input voltages above the rated power supply
voltage the output currents must be reduced at constant output power.
Out
put cu
rrent
[%]
Derating of output current BM4632
Power supply voltage [V]
Figure 40: Derating the output current BM4632 acceleration units
7)
The input current must be reduced between 40 °C and 55 °C. See correction factors at changed operating conditions Z Environmental
temperature – on page 57.
8)
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.
9)
The sum of the mean effective power, which is transmitted via the DC link terminals and the mean effective power at the motor terminals,
may not exceed the specified value continuously.
10)
The range of the output frequency is based on a stationary operation in the linear range of the PWM, i. e. without overmodulation.

The quality of the generated output voltages depends on the ratio between output frequency and current controller frequency f
I-R

( f
I-R
= 1/cycle time current controller).

The maximum output frequency f
max
, generated with high quality, is calculated as follows:

f
max
f
I-R
K
pf
--------
, typical K
Pf
18

=

Furthermore the controller sets an upper limit for the output frequency of 599 Hz (please contact the responsible Baumüller sales de-
partment, keyword: export restriction).

The range of the output frequency is defined as follows:
PWM frequency Current controller cycle time Range of the output frequency
2 kHz 250 µs 0 - 225 Hz
4 kHz/8 kHz 125 µs 0 - 450 Hz

The controller allows the device to generate output voltages with frequencies between f
max
and 599 Hz. However the quality of this volt-
ages cannot be guaranteed.

Typical the devices are marked with the max output frequency at 4 kHz switching frequency: 0 ... 450 kHz.
11)
At maximum 4 A, if UL508 C is complied with.
12)
The continuously permitted output current must be reduced complying with Z Output frequency dependent maximum current derating
BM46XX – on page 113, if the statical output frequency is lower than 15 Hz and the frequency remains between 0 and 15 Hz for over 5
seconds.