Installation
4-2
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
4.1 Installation Rules, Installation Position, Rail, Installation
Measurements and Clearances
Installation Rules
The ET 200S distributed I/O system starts with an interface module.
There is a power module after the interface module or at the beginning of each
potential group.
After a power module come digital, analog, process-related, or
RESERVE modules.
The ET 200S distributed I/O system ends with the terminating module.
The maximum configuration of the distributed I/O system is as follows:
– IM151-1 BASIC: max. 13 modules (including interface module). The width of
the station is not relevant.
– IM151-1 STANDARD / IM151-1 FO STANDARD / IM151-1 HIGH FEATURE:
max. 64 modules (including interface module) and a maximum station width
of 1 m.
Installation Position
The preferred installation position is horizontal on a vertical wall. Any other
installation position is also possible; however, there are limitations with regard to
ambient temperature.
DIN Rail
The ET 200S distributed I/O system is installed on a zinc-plated rail to EN 50022
(35 7.5 mm or 35 15 mm).
Note
When the ET 200S distributed I/O device is exposed to increased vibrations and
shock, we recommend that you screw the rail to the mounting surface at intervals
of 200 mm.
To prevent the ET 200S distributed I/O system from slipping to the side, we
recommend that you fit a mechanical stop (for example, with a ground terminal,
8WA2 011-1PH20) at both ends of the device.
If you install the rail on grounded, zinc-plated mounting plates, there is no need to
ground the rail separately.
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