Manual

0198441113730, V2.02, 03.2011
BRS3 4 Installation
3-phase stepper motor 55
4.2 Electromagnetic compatibility, EMC
Pre-assembled motor cables and encoder cables in many
different lengths are available for the drive solutions.
Contact your local sales office.
EMC requirement: Route motor
cable separately
When planning the wiring, take into account the fact that the motor cable
must be routed separately. The motor cable must be separate from the
mains cable or the signal wires.
Motor and encoder cables Motor and encoder cables are especially critical in terms of EMC. Use
only pre-assembled cables or cables that comply with the specifications
and implement the EMC measures described below.
Pre-assembled connection cables
(accessories)
Use pre-assembled cables to reduce the risk of wiring errors, see chap-
ter 7 "Accessories and spare parts".
Place the female connector of the motor cable onto the male connector
and tighten the union nut. Proceed in the same manner with the connec-
tion cable of the encoder system. Connect the motor cable and the en-
coder cable to the drive according to the wiring diagram of the drive.
@ WARNING
SIGNAL AND DEVICE INTERFERENCE
Signal interference can cause unexpected responses of device.
• Install the wiring in accordance with the EMC requirements.
• Verify compliance with the EMC requirements.
Failure to follow these instructions can result in death, serious
injury or equipment damage.
EMC measures Objective
Do not install switching elements in motor cables or
encoder cables.
Reduces interference.
Route the motor cable at a distance of at least
20 cm from the signal cable or use shielding plates
between the motor cable and signal cable.
Reduces mutual interfer-
ence
For long lines, use equipotential bonding conduc-
tors.
Reduces current in the
cable shield.
Route the motor cable and encoder cable without
cutting them.
1)
1) If a cable has to be cut for the installation, it has to be connected with shield con-
nections and a metal housing at the point of the cut.
Reduces emission.