Decel time, Digital inputs, Technical information – Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual User Manual

Page 37

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Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011

37

Detailed Drive Operation Chapter 1

Decel Time

Parameter 33 [Decel Time 1] sets the rate at which the drive ramps down its
output during a ramp Stop command or during a decrease in commanded speed.

The rate established is the result of the programmed deceleration time and the
programmed motor rated speed set in parameter 4 [Motor NP RPM] as follows:

Times are adjustable in 0.0001 second increments from 0.01 to 6553.5 seconds.
Programming zero seconds will cause the drive to use 0.1 second.

Digital Inputs

Technical Information

There are a total of six Digital Inputs.

• Digital Input 1 and Digital Input 2 are 12V DC or 24V DC, Sinking, Hi-

Speed. They are configured for 12V DC or 24V DC via dip switches
(default 24V DC). Use Digital Input 1 and Digital Input 2 for position
registration.

• Digital Input 3 is 24V DC, Sinking.

• Shared Common for Digital Inputs 1, 2 and 3.

• Digital Inputs 4, 5 and 6 are 24V DC or 115V AC, Sink/Source. They are

configured for 24V DC or 115V AC via dip switches (default 24V DC).

• Shared Common for Digital Inputs 4, 5 and 6.

• Digital Input 6 is a Hardware (HW) Enable by default. A jumper is used to

disable the HW Enable and use Digital Input 6 for other functions.

Motor RPM (Parameter 4)

Decel Time (Parameter 33)

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Decel Rate (RPM/sec)

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