User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 97
DIB-500 R4.1 Setup and commissioning
Connecting equipment racks (as of 5 carriers)
5.5.1.1 Installing the left top hat rail end bracket
To prevent components on the top-hat rail from shifting, top-hat rail end brackets must
be installed.
Before the components are mounted on the top hat rail, a top hat rail end bracket must
be installed on the left-hand end of the top hat rail, refer to Figure 5.5.
Figure 5.5 top hat rail end bracket (left-hand side)
Proceed as follows to install top hat rail end brackets:
Preparation:
The tools, auxiliary means and materials specified must be available, refer to
section 5.2 on page 90.
The voltage source on site must be de-energised.
The toggle switches must be set to the "Off" position ("downward" switch position).
The top cover of the equipment rack must have been removed.
Carry out the following steps:
Risk of injury
The equipment rack features sharp edges on the inside. Risk of injury if you do not wear
protective gloves.
Always wear protective gloves for the following process steps.
Risk of electric shock
Electric shock when touching live parts. Hardware components in the equipment cabi-
net are live.
When performing work in the equipment cabinet, ensure that the voltage source on
site is switched off. This must have been checked with a voltmeter.
1. Clamp the top hat rail end holder onto the top hat rail in the appropriate position,
refer to Figure 5.5.
2. Tighten the screws using a flat-bladed screwdriver size 0.9 x 5.4.
You have successfully installed the top hat rail end bracket.