Allen-Bradley PowerFlex 70 Reference Manual page 82

Digital Inputs
82
• Local Control
The "Local Control" input function allows exclusive control of all drive logic
functions from the terminal block. If this input function is closed, the
terminal block has exclusive control (disabling all the DPI devices) of drive
logic, including start, reference selection, acceleration rate selection, etc. The
exception is the stop condition, which can always be asserted from any
connected control device.
The drive must be stopped in order for the terminal block to gain complete
local control.
Important: Local Control is an "Exclusive Ownership" function (see
Owners). This means that only one control device (terminal
block, DPI device, HIM, etc.) at a time is allowed take local
control. If another device is not currently the local owner (as
indicated by [Local Owner]) and the terminal block bit is set in
the [Local Mask] and [Logic Mask] parameters, the terminal
block becomes local owner as soon as the "Local Control" input
function is closed.
• Clear Faults
The "Clear Faults" digital input function allows an external device to reset
drive faults through the terminal block. An open to closed transition on this
input will cause the current fault (if any) to be reset.
If this input is configured at the same time as "Stop - Clear Faults", then only
the "Clear Faults" input can actually cause faults to be reset.
The terminal block bit must be set in the [Fault Mask] and [Logic Mask]
parameters in order for faults to be reset from the terminal block.
• Enable
If this input is closed, then the drive can run (start permissive). If open, the
drive will not start.
If the drive is already running when this input is opened, the drive will coast
and indicate "not enabled" on the HIM (if present). This is not considered a
fault condition, and no fault will be generated.
This input is not used for a fast output power removal. The drive will not stop
running until the software detects the open state of this input function.
If multiple "Enable" inputs are configured, then the drive will not run if any of
the inputs are open.
• Exclusive Link
This input function is used to activate the state of the input to control one of
the drive's digital outputs. See
If an Input is so configured, no function exists for the input until
complementary Digital Output programming is done. If no outputs are
programmed (linked), the input has no function.
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
Digital Outputs.