Applied Motion RS-232 - Manual (Page 134)

134 920-0002 Rev. I
2/2013
Host Command Reference
LV - Low Voltage threshold
Compatibility: All drives
Affects:
Under voltage alarm and fault
Sets or requests the low voltage threshold for under voltage alarm / fault conditions. In AC drives (e.g. BLuAC5
and STAC6) an under voltage condition causes a Drive Fault, which disables the motor outputs of the drive. In DC
drives (SV, ST, and STM) an under voltage condition causes an Alarm. If desired, the user can change the low
voltage threshold of the drive, however in most applications it is neither necessary nor recommended. The factory
default for low voltage threshold is set to both protect the drive from damage and work with the widest range of
supply voltages possible.
Command Details:
Structure LV{Parameter #1}
Type BUFFERED
Usage READ/WRITE
Non-Volatile Yes
Register Access None
Parameter Details:
Parameter #1 Low voltage threshold
- units All drives except BLuAC5: 0.1 volts DC
BLuAC5: 1 volt DC
- range BLuDC: 18 to 40
BLuAC: 90 to 300
STAC6: 90 to 160
ST5: 12 to 75
ST10: 12 to 75
SV7: 12 to 75
STM: 10 to 75
Examples:
Command Drive sends Notes
LV LV=180 Low voltage threshold of ST5 set at 18 VDC
LV200 - Set low voltage threshold of ST5 drive to 20 VDC
LV LV=900 Low voltage threshold of STAC6 set at 90 VDC (bus voltage)
LV LV=90 Low voltage threshold of BLuAC5 set at 90 VDC (bus voltage)