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Operation
Disassembly
Fig. 7: Removal from mounting rail
Each terminal is secured by a lock on the mounting rail, which must be released for disassembly:
1. Pull down the terminal at its orange-colored straps from the mounting rail by approx. 1 cm. The rail
locking of this terminal is automatically released, and you can now pull the terminal out of the Bus
Terminal block with little effort.
2. To do this, grasp the unlocked terminal simultaneously at the top and bottom of the housing surfaces
with your thumb and index finger and pull it out of the Bus Terminal block.
5.2.4
Electrical installation
5.2.4.1
Connections within a Bus Terminal block
The electric connections between the Bus Coupler and the Bus Terminals are automatically realized by
joining the components:
Spring contacts (K-bus)
The six spring contacts of the K-Bus deal with the transfer of the data and the supply of the Bus Terminal
electronics.
Observe the K-bus current
Observe the maximum current that your Bus Coupler can supply to the K-Bus! Use the KL9400 Power
Supply Terminal if the current consumption of your terminals exceeds the maximum current that your Bus
Coupler can feed to the K-Bus supply.
Power contacts
The power contacts deal with the supply for the field electronics and thus represent a supply rail within the
Bus Terminal block. The power contacts are supplied via terminals on the Bus Coupler.
Note the pin assignment of the power contacts
During the design of a Bus Terminal block, the pin assignment of the individual Bus Terminals must
be taken account of, since some types (e.g. analog Bus Terminals or digital 4-channel Bus
Terminals) do not or not fully loop through the power contacts. Power Feed Terminals (KL91xx,
KL92xx) interrupt the power contacts and thus represent the start of a new supply rail.
26
NOTE
Version: 3.0.0
KL6904
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