Bosch Rexroth SHA Series, Руководство по эксплуатации

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Fig. 7-1: Cable routing
1 Signal and control cables in the same cable duct
2 Power cables in the same cable duct
3 Common installation in one cable duct, separated by a metal
partition wall
● If signal lines and power cables cross, install them at an angle of 90° to
prevent interference coupling.
Fig. 7-2: Routing of signal lines and power cables
● Earth unused and unconnected spare cables at both ends to prevent
them from having an antenna effect.
● Avoid unnecessary line lengths and shorten the cables.
● Install the cables sealed and on grounded metal surfaces (reference po‐
tential). Grounded and closed cable channels or metal pipes are the ide‐
al solution.
● Avoid freely suspended lines and lines installed on plastic supports.
They act as receiving antennas (immunity to interference) and also as
transmitting antennas (interference radiation).
Shielding ● Connect the cable shield with a short cable length directly to the devices
and ground it over a large surface area.
● Connect the shield of analog signal cables over a large surface area on
one end, usually in the control cabinet. Ensure an short connection over
a large area to the ground / housing.
● Connect the shield of digital signal cables with short length and a large
area on both sides. In the case of potential differences between the be‐
ginning and the end of the cable, install an additional equipotential
Bosch Rexroth AG Operating Instructions 38/91
Self-contained servo-hydraulic linear axis Type SHA...
Installation