Voltage And Frequencies; Example Of The Calculation Of The Possible Motor Voltage; Table 8: Input Voltages And Frequencies Of The 400V Units; Table 9: Dc Link Voltage For Dc Operation Of The 400V Units - KEB COMBIVERT F6 Instructions For Use Manual

UNIT DATA OF THe 400V UNITS

3.2.2 Voltage and frequencies

Rated input voltage
Rated mains voltage (USA)
Input voltage range
Input phases
Mains frequency
Mains frequency tolerance
Table 8: Input voltages and frequencies of the 400V units
DC link rated voltage @ U
DC link rated voltage @ U
DC link voltage working voltage range
Table 9: DC link voltage for DC operation of the 400V units
Output voltage at AC supply
Output voltage at DC supply
Output frequency
Output phase
Table 10: Output voltages and frequencies of the 400V units
The voltage to the motor is dependent on the actual input voltage and the control method
1)
(„Example of the calculation of the possible motor
The output frequency is to be limited in such a way that it does not exceed 1/10 of the switching
2)
frequency. Units with higher max. output frequency are subject to export restrictions and are only
available on request.

3.2.2.1 Example of the calculation of the possible motor voltage:

The motor voltage for dimensioning of the drive is depending on the used components.
The motor voltage reduces according to the following table:
Component
Mains choke U
k
Drive converter open-loop
Drive converter closed-loop
Motor choke U
k
Non-rigid supply system
28
= 400V
N
= 480V
N_UL
Reduction / % Example
4 % Example:
open-loop drive converter with mains- and motor choke at
4 %
non-rigid supply system:
8 %
400 V mains voltage - 11 % = 356 V motor voltage
1 %
2 %
U / V
N
U / V
N_UL
/ V
U
IN
f / Hz
N
± f / Hz
N
U / V
N_dc
U / V
N_UL_dc
U / V
IN_dc
U / V
1)
out
U / V
1)
out
/ Hz
f
2)
out
voltage:").
400
480
280...550
3
50 / 60
2
565
680
390...780
0...U
N_ac
0...U /√2
N_dc
0...599
3