Rockwell Automation 20A PowerFlex 70EC/700VC - Manual (Page 34)

30 Digital Inputs
•
MOP Increment, MOP Decrement
These functions are used to increment and decrement the Motor Operated
Potentiometer (MOP) value inside the drive. The MOP is a reference value that
can be incremented and decremented by external devices. The MOP value will
be retained through a power cycle.
In order for the drive to use the MOP value as the current speed reference, either
[Speed Ref A Sel] or [Speed Ref B Sel] must be set to “MOP.” Refer to
"MOP" on
page 50 .
•
Stop Mode B
This digital input function selects between two different drive stop modes. See
also "Stop Modes" on
page 109 .
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
Bus Regulation .
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 and [PI Control], bit 0 = “enabled”, 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 PID Loop" on
page 77 .
•
PI Hold
If this input function is closed, the integrator for the Process PI loop will be held
at the current value.
If this input function is open, the integrator for the Process PI loop will be
allowed to increase. See "Process PID Loop" on
page 77 .
•
PI Invert
If this input function is closed, the PI Error is inverted. If this input function is
open, the PI Error is not inverted.
•
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 "Process PID Loop" on
page 77 .
•
Auxiliary Fault
This input function is normally closed and allows external equipment to fault
the drive. When this input opens, the drive will fault with the “Auxiliary Input”
(F2) fault code. If this input function is not configured, then the fault will not
occur.