172 HX7+ ASD Installation and Operation Manual
Cumulative Run Timer Alarm Setting
Program Protection Cumulative Run Timer
This parameter sets a run-time value that, once exceeded, closes a contact. The
output signal may be used to control external equipment or used to engage a
brake.
Note: The time displayed is 1/10th of the actual time (0.1 hr. = 1.0 hr.).
Direct Access Number — F621
Parameter Type — Numerical
Factory Default — 175.0
Changeable During Run — Ye s
Minimum — 0.1
Maximum — 999.9
Units — Hours (X 100)
Abnormal Speed Detection Filter Time
Program Protection Abnormal Speed
This parameter sets the time that an over-speed condition must exist to cause a
trip.
Direct Access Number — F622
Parameter Type — Numerical
Factory Default — 10.0
Changeable During Run — No
Minimum — 0.01
Maximum — 100.0
Units — Seconds
Over-Speed Detection Frequency Range
Program Protection Abnormal Speed
This parameter sets the upper level of the Base Frequency range that, once
exceeded, will cause an Overspeed Detected alert.
Direct Access Number — F623
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Ye s
Minimum — 0.0
Maximum — 30.0
Units — Hz
Speed Drop Detection Frequency Range
Program Protection Abnormal Speed
This parameter sets the lower level of the Base Frequency range that, once
exceeded, will cause a Speed Drop Detected alert.
Direct Access Number — F624
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Ye s
Minimum — 0.00
Maximum — 30.00
Units — Hz
Over-Voltage Stall Level (fast)
Program Protection Stall
This parameter sets the upper DC bus voltage threshold that, once exceeded,
will cause an Over-Voltage Stall. An Over-Voltage Stall increases the output
frequency of the drive during deceleration for a specified time in an attempt to
prevent an Over-Voltage Trip.
If the over-voltage condition persists for over 250 µS, an Over-Voltage Trip
will be incurred.
Note: This feature may increase deceleration times.
Direct Access Number — F625
Parameter Type — Numerical
Factory Default — (ASD dependent)
Changeable During Run — Ye s
Minimum — 50.00
Maximum — 250.0
Units — %
F621 F625
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