Digital Inputs 2-49
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.
If one of these input functions is configured and the other one isn’t, the
above description still applies, but the unconfigured input function
should be considered permanently open.
The terminal block bit must be set in the [Start Mask], [Direction Mask],
and [Logic Mask] parameters in order for the terminal block to start or
change the direction of the drive using these inputs.
Important:Direction 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 to control
direction at a time. The terminal block must become
direction “owner” before it can be used to control direction.
If another device is currently the direction owner (as
indicated by [Direction Owner]), it will not be possible to
start the drive or change direction by using the terminal
block digital inputs programmed for both Run and
Direction control (i.e. Run/Fwd).
If one or both of these input functions is configured, it will not be
possible to start or jog the drive from any other control device. This is
true irrespective of the state of the [Start Mask], [Direction Mask], and
[Logic Mask] parameters.
• Run
An open to closed transition on this input while drive is stopped will
cause the drive to run in the currently selected direction unless the “Stop
- Clear Faults” input function is configured and open.
If this input is open, then the drive will stop.
Run Forward Run Reverse Action
Open Open Drive stops, terminal block relinquishes direction ownership.
Open Closed Drive runs in reverse direction, terminal block takes direction
ownership.
Closed Open Drive runs in forward direction, terminal block takes direction
ownership.
Closed Closed Drive continues to run in current direction, but terminal block
maintains direction ownership.
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