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Bosch Rexroth AG
Instructions for Use
5.2.13
Connection Point of Equipment Grounding Conductor, HMV
WARNING
Via the joint bar on the front, connect the drive controller to the supply unit.
Via the joint bar on the front, connect the drive controller to the neighboring
drive controller.
Connect the equipment grounding conductor connection of the supply unit to
the equipment grounding conductor system of the control cabinet.
Check the continuity of the equipment grounding conductors from the mains
connection to the connected motors.
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
connection 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, HMV01 and HMV02 supply
units at least 10 mm
cross sections of the outer conductors of the mains supply
feeder
●
For HCS02.1E drive controllers, at least 4 mm
but not smaller than the cross sections of the outer conduc‐
tors of the mains supply feeder
Additionally, mount the housing of HCS02.1E to a bare met‐
al 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
connection according to the table "Equipment Grounding Conduc‐
tor Cross Section".
Cross-sectional area A of outer conduc‐
tors
A ≤ 16 mm²
16 mm² < A ≤ 35 mm²
35 mm² < A
Fig.5-35:
Equipment Grounding Conductor Cross Section
DOK-INDRV*-HMV01******-IT01-EN-P
Rexroth IndraDrive Supply Units HMV01
Lethal electric shock by live parts with more
than 50 V!
2
(AWG 8), but not smaller than the
Minimum cross-sectional area A
equipment grounding connection
16
A / 2
2
(AWG 10),
of
PE
A
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