Toshiba Q9+ Installation & Operation Manual page 186

Deceleration Time 2
Program Fundamental ACC/DEC 1 – 4 Settings
This parameter specifies the time in seconds for the output of the
ASD to go from the Maximum Frequency to 0.0 Hz for the 2
Deceleration profile. The Accel/Decel pattern may be set using
F502.
This setting may be adjusted to stabilize unstable Virtual Linear
Pump operation.
This setting is also used to determine the deceleration rate of the
UP/DOWN Frequency Functions.
Note: A deceleration time shorter than the load will allow may
cause nuisance tripping and mechanical stress to loads.
Automatic Accel/Decel, Stall, and Ridethrough settings
may lengthen the deceleration times.
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F501
Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
F502
Direct Access Number —
Parameter Type — Numerical
Factory Default — 5.0
Changeable During Run — Yes
Minimum — 0.1
Maximum — 6000.0
Units — Seconds
https://www.toshiba.com/tic/
F501