Mannesmann Rexroth DKR02 - Ungrounded Three-Phase System

DKR Drive Controllers Planning the electrical connections 6-5
DOK-DIAX03-DKR********-PR02-EN-P
L1
L2
L3
PE
L1 L2 L3L3
DKR
AP1DKR
autotransformer drops
off if voltage does not
need to be matched!
TT mains
L N
drops off with
AC 230 V
0,75...2,5 mm
2
0,75...2,5 mm
2
F1
230 V ±10 %
50...60 Hz
power circuit
breaker
NFD
power circuit breaker: For primary protection of transformers with a high
degree of inrush peak (e. g. Siemens,
3VU13 00-1TF00)
Fig. 6-4: Connection to a grounded three-phase system
Note: See chapter 6.5 for information on the lead cross sections,
nominal currents of fuses and transformer (if necessary).
Ungrounded three-phase system
CAUTION
Damage to persons or property caused by
overvoltage between phase conductor and
housing!
⇒
Only connect the drive controller to ungrounded
three-phase systems via an isolating transformer or
protect the installation by means of overvoltage
suppressors!
The isolating transformer protects the drive controller reliably from
dangerous overvoltage. If the mains voltage should additionally not be
compatible with the rated power voltage of the controller, then the use of
an isolating transformer to match the voltages is recommended.
Protection with the use of an
isolating transformer
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01