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IndraDrive X Drive Controllers Power Sections XCS1, XMD1,
XMQ1
Analog signal lines
Connecting the mains choke
Installing the motor power cable
Optimum EMC installation in facility and control cabinet
Ground the shields of analog signal lines at one end (transmitter or receiver)
over the largest possible surface area and with low impedance. This avoids
low-frequency interference current (in the mains frequency range) on the
shield.
Keep connection lines of the mains choke at the drive controller as short as
possible and twist them.
With regenerative supply units, use shielded lines with the shield grounded at
both ends for the connection between supply unit and mains choke.
●
Use shielded motor power cables or run motor power cables in a
shielded duct
●
Use the shortest possible motor power cables
●
Ground shield of motor power cable at both ends over the largest
possible surface area to establish a good electrical connection
●
Run motor lines in shielded form inside the control cabinet
●
Do not use any steel-shielded lines
●
The shield of the motor power cable should not be interrupted by
mounted components, such as output chokes, sine filters or motor
filters.
General information
For optimum EMC installation, a spatial separation of the interference-free
area (mains connection) and the interference-susceptible area (drive
components) is recommended, as shown in the figures below.
Recommendation: For optimum EMC installation in the control
cabinet, use a separate control cabinet panel for the drive
components.
Division into areas (zones)
Exemplary arrangements in the control cabinet: See section
design according to interference areas - exemplary arrangements, page
We distinguish three areas:
1. Interference-free area of control cabinet (area A):
This includes:
●
Supply feeder, input terminals, fuse, main switch, mains side of
mains filter for drives and corresponding connecting lines
●
Control voltage or auxiliary voltage connection with power supply
unit, fuse and other parts unless connection is run via the mains
filter of the AC drives
●
All components that are not electrically connected with the drive
system
2. Interference-susceptible area (area B):
●
Mains connections between drive system and mains filter for
drives, mains contactor
●
Interface lines of drive controller
3. Strongly interference-susceptible area (area C):
●
Motor power cables including single cores
Mounting, dismounting and electrical installation
R911392532_Edition 01 Bosch Rexroth AG
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Control cabinet
56.
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