Rockwell Automation GV3000/SE 230VAC 30-100HP GP & Vector Drive V6.04 Start-Up and Reference Manual - Manual (Page 130)

4-44 GV3000/SE 230 VAC Drive, Software Reference Version 6.04
P.054 Level Sense Start Enable (continued)
Figure 4.7 shows the start, stop, and running status of the drive when configured for
edge control versus level control.
Edge-Sensitive Start
Level-Sensitive Start
START
START
RUNNING
RUNNING
STOP
STOP
Figure 4.7 – Drive Start, Stop, and Running Status when Configured for Edge Control vs. Level Control
Note that when operating from the terminal strip (rE) or a network option, an edge is
required at the start input for the following two conditions, even if P.054 = ON:
• The front panel keypad/display or OIM/CS3000 STOP key is pressed.
• After a vector self-tuning procedure.
These forced edge requirements do not apply if the control source is changed to
any other value and then back again as shown in the following example.
Example
Assume the selected control source is the terminal strip (P.000 = rE),
level sense start is enabled (P.054 = ON), no faults are active, and both
the start and stop inputs are closed. The drive, therefore, is running.
The drive is stopped using the front-panel STOP key. The drive now
waits for an open-to-close edge on the terminal strip start input to restart.
The control source is changed to any value other than rE. This is done
by changing P.000 to any value but rE or toggling the REM/LOC switch.
The control source is then changed back to the terminal strip (rE).
Since the start input is still closed, the drive starts. A start edge is no
longer required because switching from the terminal strip and back again
effectively acts as an edge.