Rockwell Automation 440R MSR300 Modular Safety Control System User Manual
Page 56
 
MSR300 Safety System Manual
 
Rockwell Automation 
MSR300 Manual.doc
Pg 56 of 85
 
 
Vibration and mechanical shock: 
The MSR300 modules must not be subjected to vibration or mechanical in excess of the 
specified limits (in accordance with IEC 68 part: 2-6/7): 
Vibration: 
10 – 55 Hz, 0.35 mm
Mechanical shock:
10g, 16 msec, 100 shocks
7.2.3 Electrical
 
 
 
 
 
 
 
 
 
 
For planning information, refer to the guidelines in the document "Industrial Automation 
Wiring and Grounding Guidelines" (Allen Bradley Publication 1770-4.1). 
 
Removing the terminal blocks: 
 
 
 
 
Make sure that electrical power supply to MSR300 System is switched off before making 
or removing any electrical connections, 
 
Connecting wires should be installed so that no mechanical forces (e.g., mechanical 
tension) are transmitted through them to the modules, particularly the terminals. 
 
Tighten all terminal screws firmly (*) and re-check all after connections have been made. 
(* Recommended screw-tightening torque: 0.6 to 0.8 Nm or 5 to 7 lb-in). 
 
Suitable arc and spike suppression components must be connected across load devices 
of switching outputs (electromechanical contacts or solid-state switch) where the load 
devices are inductive or capacitive. 
• To remove the terminal
block, insert the screw driver 
in position 1and then move it 
slowly to position 2. For the 
lower terminal blocks, the 
action will be in the reverse 
direction 
The external power supply unit for the MSR300 System must 
conform to the Directive 73/23/EEC Low Voltage, by applying the 
requirements of EN 61131-2 Programmable Controllers, Part 2 - 
Equipment Requirements and Tests, and one of the following: 
• EN 60950 - SELV (Safety Extra Low Voltage) 
• EN 60204 - PELV (Protective Extra Low Voltage)
• IEC 60536 Safety Class III (SELV or PELV)