Rockwell Automation 1756-HYD02 ControlLogix Hydraulic Servo Module - Manual (Page 4)

4 ControlLogix™ Hydraulic Servo Module
Publication 1756-IN580A-EN-P - March 2003
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.
The Hydraulic Servo Module (1756-HYD02) mounts in a
ControlLogix™ chassis and uses a removable terminal block (RTB) to
connect all field-side wiring.
Before you install your module you should have:
· installed and grounded a 1756 chassis and power supply.
· ordered and received an RTB and its components for your
application.
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.