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Bosch Rexroth AG
SYHNC100-SEK...3X | RE 30162-B/04.11
Assembly
Screening
6.3.4
For signal lines, only cables with a copper braid shield should be used. The cable
shield is extensively connected with the metallized connector housing and only on
the SYHNC100-SEK...3X side. This is achieved by pushing the shield back and
clamping under the pull relief.
General notes with regard to wiring
6.3.5
Observe the highest possible separation of signal and load lines and do not
f
lay the same parallel.
Do not pass the signal lines through strong magnetic fields.
f
Lay signal lines as continuously as possible. If intermediate terminals
f
are required, please use terminal block with shield strip and assembled
SYHNC100-SEK...3X cable (max. length 2m).
Cables should have the actually required number of wires only. If this is not
f
possible, you must connect the wires and connect them to the earth on one
side in the control cabinet.
Troubleshooting the system
6.3.6
In case of faults with the VT-HNC100 signals, you must check the troubleshooting
of other electric components, e.g. as follows:
Switched inductivities:
DC: Antiparallel free-wheeling diode over actuator
winding
AC: Type-related R/C combination over actuator
winding.
Electric motors
R/C combination from each motor winding to earth.
Frequency converter
Input filter in the voltage supply of the frequency
converter.
Motor control line shielded and laid separately from
other lines, and/or output filter for motor lines.
Extensive contact of the frequency converter
housing with the rear wall of the control cabinet
