4-2 Brief Description, Applications Rexroth IndraDrive
DOK-INDRV*-SYSTEM*****-PR02-EN-P
4.3 Mains Filters HNF, HNK, NFE and NFD
Applications
Mains filters are used to
• reduce radio interference
• reduce mains pollution
The different mains filters can be used as follows:
Device type Application
NFE01.1 mains filter for interference suppression of supply units
up to 230 V
NFE02.1 mains filter for interference suppression of single-
phase drive controllers up to 230 V
NFD03.1 mains filter for interference suppression of three-
phase drive controllers up to 480 V for 1-6 axes and
motor cable lengths up to max. 75 m single-axis /
120 m multi-axis (HCS02.1E)
HNF01.1 mains filter for interference suppression of three-
phase drive controllers up to 480 V for drive systems
with a high number of axes and long motor cables, as
well as for reduction of leakage current
HNK01.1 mains filter for interference suppression of three-
phase drive controllers HCS03.1E up to 500 V
Fig. 4-2: Mains filter applications
4.4 Mains Chokes HNL01
Applications HNL01.1E and HNL01.1R
(Standard) mains chokes HNL01.1E and HNL01.1R are used to
• reduce harmonics in the mains current
• increase the allowed DC bus continuous power
• operate regenerative supply modules at the mains
Current-compensated mains chokes HNL01.1E-****-S and HNL01.1R-
****-S are used to
• reduce line-frequency, asymmetric currents in the mains connection
phase of the drive system
The different mains chokes can be used as follows:
Device type Application
HNL01.1R mains chokes for connection to components with
regeneration to the supply mains (HMV01.1R)
HNL01.1E mains chokes for connection to components without
regeneration to the supply mains (HMV01.1E,
HCS02.1E; HCS03.1E)
HNL01.1*-****-S current-compensated chokes for use with HNL01.1
mains chokes to reduce line-frequency leakage
currents (HMV01.1E, HMV01.1R; HCS02.1E;
HCS03.1E)
Fig. 4-3: Mains choke applications
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