SEW-Eurodrive MOVIDRIVE MD*60A Series, Operating Instructions Manual

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34
MOVIDRIVE
®
MD_60A Operating Instructions
Encoder and resolver connection
4.13 Encoder and resolver connection
The "SEW Encoder Systems" manual contains detailed information. This manual can be
obtained from SEW.
General
installation notes
• Max. line length of inverter – encoder/resolver: 100 m (330 ft) with a capacitance per
unit length
≤
120 nF/km (193 nF/mile).
• Core cross section: 0.20 – 0.5 mm
2
(AWG 24 – 20)
• If you cut off a core of the encoder/resolver cable: Isolate the cut-off end of the core.
• Use shielded twisted pair cables (exception: cables for HTL sensors) and connect
the shield over a wide area at both ends:
– to the encoder in the cable screw fitting or in the encoder plug
– to the inverter in the housing of the sub D plug
• Route the encoder/resolver cable separately from the power cables.
Shield contact
Connect the shield of the encoder/resolver cable over a large area.
On the inverter Connect the shield on the inverter end in the housing of the sub D plug.
On the encoder/
resolver Connect the shield on the encoder/resolver end in the cable screw fitting or in the
encoder plug.
Pre-fabricated
cables • SEW offers pre-fabricated cables for connecting encoders/resolvers. We
recommend using these pre-fabricated cables.
01939BXX
Fig. 30: Connect the shield in the sub D plug
01948AXX
Fig. 31: Connect the shield in the cable screw fitting of the encoder
• The conductor colors specified in the connection figures are in accordance with
IEC 757 and correspond to the conductor colors used in the pre-fabricated cables
from SEW.