Böhnke + Partner bp308, Installation Manual

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7.2 Interference Suppression and Hints
All industrial, electronically controlled devices, such as, for example,
PCs, microprocessors, computers, SPSs, can be influenced by inter-
ference pulses if they have not been protected accordingly. These
interference pulses can be caused by external appliances, such as e.
g. voltage fluctuations in the feed-line or control pulses of the power
parts in the frequency inverter. BÖHNKE + PARTNER have taken all
usual measures while manufacturing the control unit. The installed
components are only slightly sensitive to interferences from their
environment. The control units have been designed for applications in
industrial environments where a high degree of electro-magnetic
interference is to be anticipated. Operation without risk and interfer-
ence can be generally warranted by proper installation. Should diffi-
culties arise despite taking these measures, adherence to the follow-
ing directives might prove useful. It might be particularly efficient to
earth the reference potential of the system (0 V) in the control unit, as
described below
INFO
!
•
BÖHNKE + PARTNER checks the entire lift control unit before
supplying it. We document the status of supply in the circuit dia-
grams and in the protocol of the setup and service menu.
•
Each control unit comes with circuit diagrams and technical docu-
mentation clearly identified by the control unit number.
•
All 24 V DC control signals (are galvanically isolated from the con-
trol electronics.
•
The control unit is to be installed in adherence to our circuit dia-
grams.
•
Control lines and bus lines must be laid in a different location to the
load lines.
•
When installing the control unit, you must adhere to the technical
data that has been used during production according your order.
•
Follow the EMC instructions given by the manufacturer of the fre-
quency inverter at all times !
•
Should you have any question concerning the EMC Directive
please ask our service team .
•
Please also pay attention to the information concerning cable
shielding (section 7.3)
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Installation Manual System »bp308« – Electrical Installation