Drive Warning Displays And Explanations - Toshiba Adjustable Speed Drive H3 Operation Manual

Drive Warning Displays and Explanations

DC BUS UNDERVOLTAGE
Cause:
TIME
CONTROL POWER LOW
BUS UNDERVOLTAGE
OVERLOAD
A flashing overcurrent display means that the drive is outputting more than 110% of its rated
current. If Item 161, OVERLOAD SELECTION is set to "1" or "3" (soft stall on), the drive's output
frequency will automatically decrease in an effort to reduce current. See suggestions for
remedying an inverter overload trip on page 10-4. Setting one of the monitor's functions (Items
289-292) to "10" will give an indication of how close a drive is to tripping.
OVERCURRENT
STALL PROTECTION CURRENT LEVEL
OVERVOLTAGE
OVERHEAT
A flashing overheat display means that the drive's heat sink temperature has exceeded 84
Display dissappears when heatsink temperature reaches 80
COMM
A flashing comm display means that the drive has momentarily lost communications. Display will
clear when follower receives valid reference. Cycling power or reinitializing drive will clear warning.
TOSHIBA
UNDERVOLTAGE TRIP SELECTION
10 - 7
UNDERVOLTAGE DETECT
o
C.
DC
o C.