Niko 550-00001, Руководство по установке

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4. Rail coupler
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4. Rail coupler
Description
The rail coupler interconnects the power supply voltage and the bus of the rail below to the modules via the sliding
contact.
Overview
Installation
Follow the steps below to install the rail coupler:
1 Click the rail coupler onto the left beginning of the DIN rail.
2 Connect all four connection terminals (+, –, B1, B2) to the corresponding connection terminals of the rail coupler
or the power supply on the previous and next rails.
3 Each module is fitted with a sliding contact. Slide the sliding contact to the right until it clicks into the next module.
This will ensure that the bus and the power supply are connected.
550-00020
A. +/- screw terminals
B. B1/B2 screw terminals
C. Sliding contact
A power supply or a rail coupler must be used at the left beginning of every DIN rail.
• Bus cables can be used between terminals B1/B2 of any rail coupler and a control point.
• A rail coupler can be interconnected to another rail coupler located in a different electrical cabinet. The
cable length between both rail couplers should not exceed 20 m. If the distance between the electrical
cabinets exceeds 20 m, you use a new power supply for the second cabinet.
A B
A B
B
C