Böhnke + Partner bp308, Installation Manual

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7.8.4.4 Group of Two lifts in Two Lines
In the picture you can see the topology of a bus for the landing calls
of a group of two lifts in two lines. The line structure is given by the
terminations at both ends of the shaft.
INFO
Pay attention to the terminations while commissioning the lift. In most
cases, a lift is first put in operation as a single unit and the connection
to the group is realised later on. In this case, the terminations are to
be adapted (refer to controls of a single lift).
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Installation Manual System »bp308« – Electrical Installation
Fig. 46
Topology of a group of two lifts in two lines.