Toshiba G7 Cumulative Run Timer Alarm Setting, F621 F625, Abnormal Speed Detection Fi lter Time, Overspeed Detection Frequency Range, Speed Drop Detection Frequency Range, Overvoltage Stall Level (fast)

158 G7 ASD Operation Manual
Cumulative Run Timer Alarm Setting
Program ⇒ Protection Parameters ⇒ 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 displaye d is 1/10th of the ac tual time (0.1 hr . = 1.0 hr.).
Direct Access Number — F621
Parameter Type — Numeri cal
Factory Default — 175.0
Changeable During Run — Yes
Minimum — 0.1
Maximum — 999.9
Units — Hours (X 100)
Abnormal Speed Detection Fi lter Time
Program ⇒ Protection Parameters ⇒ Abnormal Speed Settings
This parameter sets th e time that an oversp eed condition must exist to cause a
trip.
Direct Access Number — F622
Parameter Type — Numeri cal
Factory Default — 10.0
Changeable During Run — No
Minimum — 0.01
Maximum — 100.0
Units — Seconds
Overspeed Detection Frequency Range
Program ⇒ Protection Parameters ⇒ Abnormal Speed Settings
This parameter sets th e upper level of the Base Frequency range that, once
exceeded, will cause an Overspeed Detected alert.
Direct Access Number — F623
Parameter Type — Numeri cal
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — Hz
Speed Drop Detection Frequency Range
Program ⇒ Protection Parameters ⇒ Abnormal Speed Settings
This parameter sets th e lower level of the Base Frequency range that, once
exceeded, will cause a Speed Drop Detected alert.
Direct Access Number — F624
Parameter Type — Numeri cal
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.00
Units — Hz
Overvoltage Stall Level (fast)
Program ⇒ Protection Parameters ⇒ Stall
This parameter sets the upper DC bus voltage threshold that, once exceeded,
will cause an Overvoltage Stall. An Overvoltage Stall increases the output
frequency of the drive during deceleration for a specified time in an attempt to
prevent an Overvoltage Trip.
If the overvoltage condition persists for over 250 µS, an Overvoltage Trip will
be incurred.
Note: This feature may increase deceleration t im es.
Direct Access Number — F625
Parameter Type — Numeri cal
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 50.00
Maximum — 250.0
Units — %
F621 F625