P9 ASD Quick Start Guide
73
*
Reset ignored if active.
*POFF
Control Under-Voltage
Under-voltage condition at the 5,
15, or the 24 VDC supply.
• Defective Control board.
• Excessive load on power supply.
• Low input voltage.
PtSt
Reference Point
Two speed-reference frequency
setpoint values are too close to
each other.
• Two speed reference frequency setpoints are too close to
each other (increase the difference).
UC
Under-Current
With the
Low-Current Trip
(F610) parameter enabled, the
output current of the ASD is
below the level defined at
F611
and remains there for a time
longer than the setting of
F612
.
• Output current too low.
LED
Screen
LCD
Screen
Description
Possible Causes/Troubleshooting
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www .ctiautomation.net - Email: info@ctiautomation.net