6-10 Planning the electrical connections DKR Drive Controllers
DOK-DIAX03-DKR********-PR02-EN-P
The nominal current required is not dependent on the mains voltage.
There is a thyristor bridge on the mains of the DKR which operates
with phase control at a mains voltage of > 400 V. This keeps the DC
bus voltage at approximately 520 V. With higher mains voltages the
power factor, which is about 1 at 400 V, is reduced.
If the DKR must be connected via a transformer, then the secondary
voltage should equal 400 V.
2. Determine the conversion factor (as per EN 60 204-1/02.86). This
factor can be read directly from the following table using the highest,
i.e., the temperature at the machine.
Current load table Conversion table for ambient
temperatures above 30 °C
rated cross
section of the
leads in m²
Current load of leads
on machines with
normal applications
in the channel "B2"
Ambient
temperature
in °C
Conversion factor
for Rexroth
Indramat cable
1 9.6 30 1.45
1.5 12.2 35 1.4
2.5 16.5 40 1.35
423 451.29
629 501.24
10 40 55 1.17
16 53 60 1.11
25 67
35 83
50
1)
98
1): actual cross section equals 47 mm²
Fig. 6-10: Conversion factor and current load table for ambient temperatures
greater than 30 °C (as per EN 60 204-1/02.86)
Note: The dimensions of the cross sections of cable assembly made
by Rexroth Indramat meet the requirements set in
EN 60 204-1/02.86. For details on motor power cables, please
see the relevant motor documentation.
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
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