Direct Access Parameter Information
W7B ASD Installation & Operation Manual
https://www.toshiba.com/tic/
57
Motor Overload Protection Configuration
Program
Protection
Overload
This parameter Enables/Disables the Soft Stall function. When enabled,
the Soft Stall function reduces the output frequency of the ASD when the
current requirements of the motor exceed the Motor Overload Protection
Level 1 setting
(
; thus, reducing the output current.
If the current drops below the motor overload protection level setting
within a specified time, the output of the ASD will accelerate to the
programmed frequency setpoint. If not, a trip will be incurred.
The Soft Stall feature is available when the (Program
Protection
Parameters
Overload
) Motor Overload Trip Enable/Disable
parameter is enabled only.
Soft Stall is highly effective in preventing motor overload trips when used
on fans, blowers, pumps, and other centrifugal loads which require less
torque at lower frequencies.
Note: The Soft Stall setting may affect acceleration times and patterns.
Settings:
0 — Motor OL Trip without Soft Stall
1 — Motor OL Trip with Soft Stall
2 — Without Motor OL Trip or Soft Stall
3 — Soft Stall Only
4 — V/f Motor OL Trip without Soft Stall
5 — V/f Motor OL Trip with Soft Stall
6 — V/f Motor without OL Trip or Soft Stall
7 — V/f Motor Soft Stall Only
Direct Access Number —
F017
Parameter Type —
Selection List
Factory Default —
Motor OL Trip
without Soft Stall
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 ...
Page 2: ......
Page 3: ...Document Number 57442 006 Date June 2020 W7 ASD Installation and Operation Manual ...
Page 4: ......
Page 60: ......
Page 221: ......