6 Commissioning
Maschinenfabrik Reinhausen GmbH 2021
59
8209941/00 EN
ECOTAP
®
VPD
®
III 30D-24 / MD&C
6.3.3.2.2 Wiring requirement of operating site
Note the following when wiring the operating site:
▪ Route the connecting leads in grounded metal cable ducts.
▪ Do not route lines which cause interference (for example power lines) and
lines susceptible to interference (for example signal lines) in the same ca-
ble duct.
▪ Maintain a clearance of at least 100 mm between lines causing interfer-
ence and lines susceptible to interference.
Figure 37: Recommended wiring
1 Cable duct for lines causing inter-
ference
3 Cable duct for lines susceptible to
interference
2 Line causing interference (for ex-
ample power line)
4 Line susceptible to interference
(e.g. signal line)
▪ Short-circuit and ground reserve lines.
▪ Never connect the device with a multi-core bus line.
▪ For signal transmission, use shielded lines with individual conductors (out-
going conductor / return conductor) twisted in pairs.
▪ The shield must be connected across the entire surface (360º).
For optional installation of the control unit in a control cabinet, also note the
following:
1. If both the control cabinets in which the start and end of the cable are con-
nected are on the same potential: Use shield on both sides.
2.
NOTICE!
If both the control cabinets in which the start and end of the ca-
ble are connected are on a different potential: Only use shield on one
side. Otherwise circulating currents caused by potential equalization will
arise which may cause damage due to grounding loops.
Summary of Contents for ECOTAP VPD 3 30D-24
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