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Note
Optional 24 V PSU loss of power
The optional 24 V PSU derives power from the mains supply to the converter. Should the mains
supply be removed from the converter, the 24 V PSU will not longer provide power to the control
and communications components of the
converter.
4.3.2
EMC installation guidelines
4.3.2.1
Connections and interference suppression
All connections should be made so that they are permanent. Screwed connections on painted
or anodized metal components must be made either by means of special contact washers,
which penetrate the isolating surface and establish a metallically conductive contact, or by
removing the isolating surface on the contact points.
Contactor coils, relays and solenoid valves must have interference suppressors to reduce high-
frequency radiation when the contacts are opened (RC elements or varistors for AC current
operated coils, and freewheeling diodes for DC current-operated coils). The interference
suppressors must be connected directly on each coil.
4.3.2.2
Basic EMC rules
Measures to limit Electromagnetic Interference (EMI)
In the following list are the necessary measures that must be taken to ensure the correct
installation of the Converter within a system, which should minimize the effects of EMI.
Cables
• Keep all cable lengths to the minimum possible length; avoid excessive cable lengths.
• Route always signal and data cables, as well as their associated equipotential bonding cables,
in parallel and with as short a distance as possible.
• Do not route signal and data cables parallel to the line supply cables.
• Signal and data cables should not cross the line supply cables; if crossing is necessary, they
should cross at an angle of 90 °.
• Shield analog and data cables.
• Route particularly sensitive signal cables, such as setpoint and actual value cables, with
optimum shield bonding at both ends and without any interruptions of the shield.
• Ground spare wires for signal and data cables at both ends.
• Route all power cables (line supply cables) separately from signal and data cables. The
minimum distance should be approximately 25 cm.
Installation
4.3 Electrical Installation
Distributed converter for SIMOGEAR geared motors
62
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL
Содержание SINAMICS G110M
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