Rockwell Automation SP600 AC Drive User Manual Version 1.0 - Manual (Page 214)

12-84 SP600 AC Drive User Manual
Selects drive action when an analog signal loss is detected. (1.6 V =
signal loss, 1.9 V = end of signal loss; 3.2 mA = signal loss,
3.8 mA = end of signal loss.)
One of the selections (1 = Fault) stops the drive on signal loss. All
other choices make it possible for the input signal to return to a
usable level while the drive is still running.
Important: Note that there is no signal loss detection while the
input is in bipolar voltage mode (see parameter 190).
327 Analog In 2 Loss
Range: 0 = Disabled
1 = Fault
2 = Hold Input (use last frequency command)
3 = Set Input Lo (use Minimum Speed as frequency
command)
4 = Set Input Hi (use Maximum Speed as frequency
command)
5 = Go to Preset1 (use Preset1 as frequency
command)
6 = Hold OutFreq (maintain last output frequency)
Default: 0 = Disabled
Access: 2 Path: Inputs & Outputs>Analog Inputs
See also: 91, 92, 190
!
ATTENTION: Setting parameter 327 to a value
other than 1 allows the input signal to return to a
usable level while the drive is running. If a lost analog
signal is restored while the drive is running, the drive
will ramp to the restored reference level at the rate
specified in Accel Time 1 (140), Accel Time 2 (141),
Decel Time 1 (142), and Decel Time 2 (143). Be
aware that an abrupt speed change may occur
depending upon the new reference level and the rate
specified in these parameters. Failure to observe this
precaution could result in bodily injury.
340 Anlg Out Config
Param 340 is not available in the 6SP series.
It is available in the 6SB extended HP SP600 Drive.
See instruction manual D2-3501 for more information.