Allen-Bradley PowerFlex 70 Reference Manual page 81

• Stop Mode B
This digital input function selects between two different drive stop modes.
See also Stop Modes on page
If the input is open, then [Stop Mode A] selects which stop mode to use. If the
input is closed, then [Stop Mode B] selects which stop mode to use. If this
input function is not configured, then [Stop Mode A] always selects which
stop mode to use.
• Bus Regulation Mode B
This digital input function selects how the drive will regulate excess voltage
on the DC bus. See also
If the input is open, then [Bus Reg Mode A] selects which bus regulation
mode to use. If the input is closed, then [Bus Reg Mode B] selects which bus
regulation mode to use. If this input function is not configured, then [Bus Reg
Mode A] always selects which bus regulation mode to use.
• PI Enable
If this input function is closed, the operation of the Process PI loop will be
enabled.
If this input function is open, the operation of the Process PI loop will be
disabled. See Process PI Loop on page
• PI Hold
If this input function is closed, the integrator for the Process PI loop will be
held at the current value, which is to say that it will not increase.
If this input function is open, the integrator for the Process PI loop will be
allowed to increase. See
• PI Reset
If this input function is closed, the integrator for the Process PI loop will be
reset to 0.
If this input function is open, the integrator for the Process PI loop will
integrate normally. See
• Auxiliary Fault
The "Aux Fault" input function allows external equipment to fault the drive.
Typically, one or more machine inputs (limit switches, pushbuttons, etc.) will
be connected in series and then connected to this input. If the input function
is open, the software detects the change of state then the drive will fault with
the "Auxiliary Input" (F2) fault code.
If the "Aux Fault" input function is assigned to a physical digital input, that
input will be active regardless of any drive control masks. Also, the input will
be active even if a device other than the terminal block gains complete local
control of drive logic. See
If this input function is not configured, then the fault will not occur.
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
197.
Bus Regulation.
135.
Process PI Loop on page
Process PI Loop on page 135.
Local Control.
Digital Inputs
135.
81