ABB i-bus
KNX
Device technology
SA/S | 2CDC 505 056 D0208 47
2.11
Assembly and installation
ABB i-bus
Switch Actuators are modular installation devices for installation in the distribution board on
35 mm EN 60 715 mounting rails.
The mounting position can be selected as required.
The electrical connection is implemented using screw terminals. The connection to the bus is implemented
using the supplied bus connection terminal. The terminal designations are located on the housing.
The device is ready for operation after connection to the bus voltage.
Accessibility of the devices for the purpose of operation, testing, visual inspection, maintenance and repair
must be provided compliant to VDE 0100-520.
Commissioning requirements
To commission the Switch Actuators, a PC with ETS and an interface, e.g. USB or IP, are required.
The device is ready for operation after connection to the bus voltage.
The installation and commissioning may only be carried out by electrical specialists. The appropriate
standards, guidelines, regulations and specifications should be observed when planning and setting up
electrical installations.
•
Protect the device from damp, dirt and damage during transport, storage and operation.
•
Only operate the device within the specified technical data!
•
The device should only be operated in an enclosed housing (distribution board)!
Manual operation
With the exception of SA/S x.6.1.1 variant, the Switch Actuators can be manually operated. They can be
switched on or off with a button on the relay. The button simultaneously indicates the contact position.
Important
The Switch Actuator does not monitor manual actuation electrically, and therefore cannot react
discretely to a manual operation.
From a power engineering point of view, the relay is only actuated with a switching pulse if the last
known relay position set by the bus has changed. As a consequence, after a one-off manual switching
operation, a switch telegram received via the bus triggers no contact changeover because the switch
actuator assumes that no changeover has taken place and that the correct contact position is still set.
An exception to this situation is after bus voltage failure and recovery. In both cases, the relay position
is recalculated based on the parameterization and set independently of the contact position.
Summary of Contents for i-bus SA/S 2.6.2.1
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