Rockwell Automation 1771-CFM Config. Flowmeter Installation Instructions User Manual

Page 4

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CFM QRD

QRC

19807

Configurable Flowmeter Module

4

Publication 1771ĆIN043B-EN-P - July 2002

!

ATTENTION

Preventing Electrostatic Discharge

This equipment is sensitive to electrostatic
discharge, which can cause internal damage and
affect normal operation. Follow these guidelines
when you handle this equipment:

•

Touch a grounded object to discharge potential
static.

•

Wear an approved grounding wriststrap.

•

Do not touch connectors or pins on component
boards.

•

Do not touch circuit components inside the
equipment.

•

If available, use a static–safe workstation.

•

When not in use, keep modules in appropriate
static–safe packaging.

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 0.8A. 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.

If you are using the 1771ĆCFM as a

Set the jumper to

replacement for a 1771ĆQRC module (no BTW / 3 word BTR)

QRC

replacement for a 1771ĆQRD module (1 word BTW / 9 word BTR)

QRD

CFM module (software configurable)

CFM

Calculate Power

Requirements

Setting the Module

Operational Jumper

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