Inserting The Module Into The Base; Inserting The Module; Figure 2-6 Inserting The Module Into The Base - Siemens SIMATIC 505 User Manual

2.3

Inserting the Module into the Base

Inserting the
Module
SIMATIC 505 Interrupt Input Module User Manual
Failure to follow appropriate safety precautions could result in death or serious
injury and/or damage to equipment.
To minimize risk of potential shock hazard, turn off power to the I/O base and to
any modules installed in the base before inserting or removing a module or
installing a terminal block.
The power must be turned off to the I/O base and to any modules installed in
the base before inserting or removing a module or installing a terminal block.
The Interrupt Input Modules are single-wide and may be installed in any
available slot for single-wide modules. Do not touch the printed circuit
board (PCB) while inserting the module. This could cause electrostatic
damage to its components. To insert the module, follow these steps.
1. Position the module so that the front bezel is facing you.
2. Hold the top and bottom of the bezel and slide the module carefully into
the slot, pushing it all the way into the base. If you have inserted the
module correctly, you will feel a slight increase in resistance as the
module mates with the backplane connector. (See Figure 2-6).
3. Use a flat-head screwdriver to tighten the screws at the top and bottom
of the bezel. This grounds the module to the base. Do not overtighten.
C
P
U
P
S
Earth
Ground

Figure 2-6 Inserting the Module into the Base

WARNING
!
0.3 N–m (2.61 in.-lbs.) minimum torque
0.6 N–m (5.22 in.-lbs.) maximum torque
Backplane
connectors
Installing the Module 2-7