Design and installation in area B – interference –susceptible area of control cabinet
Arranging Components and Lines
Modules, components and lines in area B should be placed at a distance of
at least d1 = 200 mm from modules and lines in area A.
Alternative: Shield modules, components and lines in area B by distance
plates mounted vertically on the mounting plate from modules and lines in
area A or use shield lines.
Only connect power supply units for auxiliary or control voltage connections
in the drive system to the mains via a mains filter. See "Division into Areas
(zones)" on page 183.
Install the shortest possible lines between drive controller and filter.
Control Voltage or Auxiliary Volt‐
age Connection
Only in exceptional cases should you connect power supply unit and fusing
for the control voltage connection to phase and neutral conductor. In this
case, mount and install these components in area A far away from area B
and C of the drive system.
Run the connection between control voltage connection of the drive system
and power supply unit used through area B over the shortest distance.
Line Routing
Run the lines along grounded metal surfaces, in order to minimize radiation
of interference fields to area A (transmitting antenna effect).
Design and installation in area C – strongly interference-susceptible area of control cabinet
Area C mainly concerns the motor power cables, especially at the connection
point at the drive controller.
Influence of the Motor Power Ca‐
ble
The longer the motor cable, the greater its leakage capacitors. To comply
with a certain EMC limit value, the allowed leakage capacitance of he mains
filter is limited.
● Run the shortest possible motor power cables.
Routing the Motor Power Cables
and Motor Encoder Cables
Route the motor power cables and motor encoder cables along grounded
metal surfaces, both inside the control cabinet and outside of it, in order to
minimize radiation of interference fields. If possible, route the motor power
cables and motor encoder cables in metal-grounded cable ducts.
Route the motor power cables and motor encoder cables
● with a distance of at least d5 = 100 mm to inference-free lines, as well
as to signal cables and signal lines
(alternatively separated by a grounded distance plate)
● in separate cable ducts, if possible
Routing the Motor Power Cables
and Mains Connection Lines
For frequency converters (drive controllers with individual mains connection),
route motor power cables and (unfiltered) mains connection lines in parallel
for a maximum distance of 300 mm. After that distance, route motor power
cables and power supply cables in opposite directions and preferably in sep‐
arate cable ducts.
Ideally, the outlet of the motor power cables at the control cabinet should be
provided in a distance of at least d3 = 200 mm from the (filtered) power sup‐
ply cable.
DOK-RCON02-FV*********-IB08-EN-P Bosch Rexroth AG 187/259
Rexroth Frequency Converter Fv
Technical Data
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