Rockwell Automation 1756-M02AS Motion Module Installation Instructions - Manual (Page 4)

4 SSI Servo Module
Publication 1756-IN595A-EN-P - March 2004
Removal and Insertion Under Power
Repeated electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create electrical
resistance that can affect module operation.
Note the Power Requirements
This module receives power from the 1756 chassis power supply and requires
two sources of power from the backplane:
• 700mA at 5.1 V dc
• 2.5 mA at 24V dc
Add this current to the requirements of all other modules in this chassis to
prevent overloading the backplane power supply.
WARNING
When you insert or remove the module while backplane power
is on, an electrical arc can occur. This could cause an explosion
in hazardous location installations. Be sure that power is
removed or the area is nonhazardous before proceeding.