Rockwell Automation 20B PowerFlex 70, PowerFlex 700 Reference Manual - Manual (Page 73)

Digital Inputs
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013 73
Input Function Detailed Descriptions
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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.
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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.
Accel 2 Select acceleration rate 1 or 2.
Decel 2 Select deceleration rate 1 or 2.
Accel 2 & Decel 2 Select acceleration rate 1 and deceleration rate 1 or acceleration rate 2
and deceleration rate 2.
MOP Increment Increment MOP (Motor Operated Pot Function Speed ref)
MOP Decrement Decrement MOP (Motor Operated Pot Function Speed ref)
Stop Mode B Select Stop Mode A (open) or B (closed)
Bus Regulation Mode B Select which bus regulation mode to use
PI Enable Enable Process PI loop.
PI Hold Hold integrator for Process PI loop at current value.
PI Reset Clamp integrator for Process PI loop to 0.
Auxiliary Fault Open to cause “auxiliary fault” (external string).
Local Control Allows terminal block to assume complete control of drive logic.
Clear Faults Clear faults and return drive to ready status.
Enable Open input causes drive to coast to stop, disallows start.
Exclusive Link Exclusive Link – digital input is routed through to digital output, no
other use.
Power Loss Level (PowerFlex 700 only) Selects between using fixed value for power loss level and getting the
level from a parameter
Precharge Enable (PowerFlex 700 only) If common bus configuration, denotes whether drive is disconnected
from DC bus or not. Controls precharge sequence on reconnection to
bus.
Run Forward Run Reverse Action
Open Open Drive stops, terminal block relinquishes direction ownership.