Bosch Rexroth IndraDrive HMV Project Planning Manual page 295

Project Planning Manual | Rexroth IndraDrive
Equipment grounding conductor: material and cross section
For the equipment grounding conductor, use the same metal (e.g.
copper) as for the outer conductors.
For the connections from the equipment grounding conductor con‐
nection of the device to the equipment grounding conductor system
in the control cabinet, make sure the cross sections of the lines are
sufficient.
Cross sections of the equipment grounding connections:
● for HCS03.1E drive controllers and HMV01 supply units, at
least 10 mm
outer conductors of the mains supply feeder
● for HCS02.1E drive controllers, at least 4 mm
than the cross sections of the outer conductors of the mains
supply feeder
Additionally, mount the housing of HCS02.1E to a bare metal
mounting plate. Connect the mounting plate, too, with at least
the same cross section to the equipment grounding conductor
system in the control cabinet.
For outer conductors with a cross section greater than 16 mm², you
can reduce the cross section of the equipment grounding connec‐
tion according to the table "Cross section of equipment grounding
conductor, excerpt from EN 61800-5-1:2003".
Cross-sectional area A of outer conduc‐
tors
A ≤ 16 mm²
16 mm² < A ≤ 35 mm²
35 mm² < A
Fig.8-60: Cross section of equipment grounding conductor, excerpt from EN
61800-5-1:2003, table 2
Electric Drives | Bosch Rexroth AG
and Controls
Functions and Electrical Connection Points
, but not smaller than the cross sections of the
2
Minimum cross-sectional area A
equipment grounding connection
285/369
2 , but not smaller
of
PE
A
16
A / 2