Siemens SINAMICS PERFECT HARMONY GH180 - Figure 7-3 Recommended Cable Segregation

• Route control and signal cables in separate cable trunks at least 200 mm (8 in) away from
motor and power cables.
• If control and signal cables must cross power cables, it must be at an angle as near to
90 degrees as possible. Refer to 󹪝gure Recommended Cable Segregation.
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1
Motor cable
2
Mains cable
3
Signal/control cables
Figure 7-3 Recommended Cable Segregation
Serial Communication Cables
The signal transmission standard (RS232, RS485, Ethernet, etc.) and protocol standard
(Pro󹪝bus, ControlNet, Modbus, etc.) will recommend suitable cable types. Follow the
recommendations.
Encoder Cables
Motor rotor position encoders that feedback directly to the SINAMICS Perfect Harmony™ GH180
drive must be electrically isolated from the motor shaft. It is important that any shaft bearing
insulation not be bridged. The recommendations of the encoder supplier, such as cable type,
should always be strictly followed. The cable run from the encoder to the drive should be a
continuous length and not interrupted by screw terminals.
Note
Complete Guideline on EMC Installation
• Go to the Gambica website at: http://www.gambica.org.uk/
• Download the NSTALLATION GUIDELINES FOR POWER DRIVE SYSTEMS from the resource
library.
Electrical Connections
7.4 EMC Installation Guidelines
Type 6SR5 Air-Cooled
Operating Instructions, AK, A5E39390112 45