Calculate power requirements, Set the configuration jumpers – Rockwell Automation 1771-CFM,D17716.5.99 CONFIGURABLE FLOWMET User Manual
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2–3
Install the CFM Module
Publication 1771Ć6.5.99 - December 1995
Your CFM module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The maximum current
drawn by the CFM module is 1.0A.
Add this value to the requirements of all other modules in the I/O
chassis to prevent overloading the chassis backplane and/or
backplane power supply.
!
ATTENTION: When using a 1771-P7 or 1771-PS7
power supply to power an I/O chassis, you cannot
place more than four CFM modules in this chassis.
The interaction between the four CFM modules and the
1771-P7 or 1771-PS7 power supply (not 16A limit)
prevents the power supply from powering up.
You check or set these jumpers:
•
module operation jumper
•
input channel jumpers
Check the Module Operation Jumper
Important: Make sure the module operation jumper is in the
CFM position (default setting).
CFM
QRD
QRC
19807
If The Jumper Is
Set In This Position
The CFM Module
Will Operate As
QRC
a QRC module (no BTW / 3 word BTR)
QRD
a QRD module (1 word BTW / 9 word BTR)
Calculate Power
Requirements
Set the Configuration
Jumpers