590 Series DC Digital Drive Programming
D-19
ALARMS
Parameter Tag Range
SPEED FBK ALARM 81
ENABLED / INHIBITED/ARM V
FALLBACK
Provides facility to inhibit the speed feedback alarm, or to elect that (in place of the alarm) armature voltage is used as the fallback speed feedback if
the armature voltage exceeds the normal speed feedback by SPDFBK ALM LEVEL for longer than SPDFBK ALM DELAY. The fallback control
condition is latched, cleared only by stop/start, disable/re-enable or power down. (Note that speed feedback alarms caused by feedback inversion, by
feedback exceeding armature voltage, or when the field weakening mode is selected, all prevent the fallback action, instead causing a normal drive
trip.)
ENCODER ALARM 92 ENABLED / INHIBITED
Inhibits the encoder option board alarm.
REM TRIP INHIBIT 540 ENABLED / INHIBITED
Inhibits the remote trip.
REM TRIP DELAY 541 0.1 to 600.0 s
The delay between the remote trip alarm being activated and the drive tripping.
STALL THRESHOLD 263 0.00 to 200.00 %
Stall comparator current feedback threshold level.
STALL TRIP DELAY 224 0.1 to 600.0 s
Stall comparator time-out delay before stall output becomes true.
STALL THRESHOLD
STALL TRIP DELAY
Comparator
CURRENT FEEDBACK
DELAY
STALL TRIP
AT ZERO SETPOINT
SPDFBK ALM LEVEL 180 0.0 to 100.0 % (h)
The speed feedback alarm compares speed feedback to armature voltage. The alarm level is the threshold which the difference between the two
signals should exceed for the alarm to activate.
SPDFBK ALM DELAY 1296 0.000 to 5.000s
The speed feedback alarm time-out delay before the alarm is activated, applies only to alarms caused by armature voltage exceeding speed feedback.
Alarms caused by speed feedback exceeding armature voltage have fixed 5 second delay. Alarms caused by speed feedback of opposite polarity to
armature voltage are instantaneous.
THERMISTOR STATE 337 FALSE / TRUE
TRUE if the thermistor input is active, FALSE otherwise.
SPEED FBK STATE 472 FALSE / TRUE
A Boolean output that shows the state of the speed feedback alarm. This output is updated even when the alarm is disabled.
To Next Page
Loading...
