Allen-Bradley PowerFlex 70 Reference Manual page 73

Adjustable frequency ac drives
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Accel 2
Decel 2
Accel 2 & Decel 2
MOP Increment
MOP Decrement
Stop Mode B
Bus Regulation Mode B
PI Enable
PI Hold
PI Reset
Auxiliary Fault
Local Control
Clear Faults
Enable
Exclusive Link
Power Loss Level (PowerFlex 700 only)
Precharge Enable (PowerFlex 700 only)
Input Function Detailed Descriptions
• Stop - Clear Faults
An open input will cause the drive to stop and become "not ready". A closed
input will allow the drive to run.
If "Start" is configured, then "Stop - Clear Faults" must also be configured.
Otherwise, a digital input configuration alarm will occur. "Stop - Clear Faults"
is optional in all other circumstances.
An open to closed transition is interpreted as a Clear Faults request. The drive
will clear any existing faults. The terminal block bit must be set in the [Fault
Mask] and [Logic Mask] parameters in order for the terminal block to clear
faults using this input function.
If the "Clear Faults" input function is configured at the same time as "Stop -
Clear Faults", then it will not be possible to reset faults with the "Stop - Clear
Faults" input.
• Run Forward, Run Reverse
An open to closed transition on one input or both inputs while drive is
stopped will cause the drive to run unless the "Stop - Clear Faults" input
function is configured and open.
The table below describes the basic action taken by the drive in response to
particular states of these input functions.
Run Forward
Run Reverse
Open
Open
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
Select acceleration rate 1 or 2.
Select deceleration rate 1 or 2.
Select acceleration rate 1 and deceleration rate 1 or acceleration rate 2
and deceleration rate 2.
Increment MOP (Motor Operated Pot Function Speed ref)
Decrement MOP (Motor Operated Pot Function Speed ref)
Select Stop Mode A (open) or B (closed)
Select which bus regulation mode to use
Enable Process PI loop.
Hold integrator for Process PI loop at current value.
Clamp integrator for Process PI loop to 0.
Open to cause "auxiliary fault" (external string).
Allows terminal block to assume complete control of drive logic.
Clear faults and return drive to ready status.
Open input causes drive to coast to stop, disallows start.
Exclusive Link – digital input is routed through to digital output, no
other use.
Selects between using fixed value for power loss level and getting the
level from a parameter
If common bus configuration, denotes whether drive is disconnected
from DC bus or not. Controls precharge sequence on reconnection to
bus.
Action
Drive stops, terminal block relinquishes direction ownership.
Digital Inputs
73

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