Installation Sequence; Arrangement Of Sil Modules; Preparation And The Required Tool - Emerson PACSystems RSTi-EP User Manual

User Manual
GFK-2958L
For
When calculating the width for vertical installation, 4.5 mm (0.18") must be added for the
end bracket.
6.1.9

Installation Sequence

A RSTi-EP station may only be installed in this sequence (starting from the left/bottom):
• End bracket
• Bus network adapter
• Up to 64 active modules
• End plate and end bracket
If the station has already been configured, proceed to the corresponding installation
drawing. If you are configuring the station yourself, observe the following instructions:
• Observe the maximum current carrying capacity (refer to Section, Current Demand and
Power Supply).
• Furthermore, the modules may be arranged in any sequence. In order to configure the
station as clearly as possible, it is recommended to arrange the modules according to
their function.
6.1.10

Arrangement of SIL Modules

An EP-19xx module can be positioned anywhere in the RSTi-EP station. All of the following
output modules up to the next EP-7641 module are safely disconnected (safety segment).
Multiple EP-19xx modules / safety segments can be set up in a single station.
Note:

Preparation and the Required Tool

6.1.11
The DIN rail must already be installed. To mechanically install the RSTi-EP station, you will
need a 3-mm screwdriver.
• Lay out the modules in the intended sequence.
• Check whether the DIN rail feet can be moved on both end brackets. If necessary, loosen
the mounting screw until the DIN rail feet can be moved freely.
• If not done yet, fit an earth terminal to the DIN rail.
Installation
+ 52 mm (2.05")
+ n x 11.5 mm (0.45")
+ 11.5 mm (0.45")
+ 2 x 20 mm (0.79")
= 111.5 mm (4.39") + n x 11.5 mm (0.45")
vertical installation
When using RSTi-EP EP-19xx modules, also refer to the Modules for Functional Safety
Manual (GFK-2956).
bus network adapter
n modules
end plate and end bracket
distances to the sides
interchange height
Section 6
May 2021
and width.
406