Direct Access Parameter Information
W7B ASD Installation & Operation Manual
148
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Over-Speed Detection Frequency Lower Band [0 = disabled]
Program
Protection
Abnormal Speed Settings
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 —
Yes
Minimum — 0.00
Maximum — 30.00
Units — Hz
Over-Voltage Limit Operation 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 more than 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 —
Yes
Minimum — 50.00
Maximum — 250.0
Units — %
Over-Voltage Limit Operation Level
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 more than 4 mS, an Over-
Voltage Trip will be incurred.
Note:
This feature may increase deceleration times.
Direct Access Number —
F626
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — 50.0
Maximum — 250.0
Units — %
Under-Voltage Trip Selection
Program
Protection
Undervoltage/Ridethrough
This parameter Enables/Disables the Under-Voltage Trip function.
With this parameter Enabled, the ASD will trip if the under-voltage
condition persists for a time greater than the
setting.
A user-selected contact may be actuated if so configured.
If Disabled the ASD will stop and not trip; the FL contact is not active.
Settings:
0 — Disabled
1 — Enabled (Box Checked)
Direct Access Number —
F627
Parameter Type —
Selection List
Factory Default —
Disabled
Changeable During Run —
No
Summary of Contents for W7 DN-57442-006
Page 1: ...ADJUSTABLE SPEED DRIVES W7 DN 57442 006 INSTALLATION OPERATION MANUAL June 2020 ...
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Page 3: ...Document Number 57442 006 Date June 2020 W7 ASD Installation and Operation Manual ...
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