Chapter 5 Parameters|VFD-B-P Series
5-30 Revision April 2009, SW V1.00
If the Output Frequency Lower Limit is 10Hz, and the Minimum Output Frequency (Pr.01-05) is
set to 1.5Hz, the drive will run with 10Hz.
The upper limit of output frequency will be limited to 60Hz even after slip compensation when
the max. output frequency is set to 60Hz and the setting frequency is also 60Hz. To make the
output frequency exceeds 60Hz, it just only needs to increase the upper limit of output
frequency or max. output frequency.
01 - 09 Acceleration Time 1 (Taccel 1) Unit: 0.1/0.01
01 - 10 Deceleration Time 1 (Tdecel 1) Unit: 0.1/0.01
01 - 11 Acceleration Time 2 (Taccel 2) Unit: 0.1/0.01
01 - 12 Deceleration Time 2 (Tdecel 2) Unit: 0.1/0.01
01 - 18 Acceleration Time 3 (Taccel 3) Unit: 0.1/0.01
01 - 19 Deceleration Time 3 (Tdecel 3) Unit: 0.1/0.01
01 - 20 Acceleration Time 4 (Taccel 4) Unit: 0.1/0.01
01 - 21 Deceleration Time 4 (Tdecel 4) Unit: 0.1/0.01
Settings 0.01 to 3600.0 sec Factory Setting: 10.0
Factory setting for models of 30hp (22kW) and above is 60sec.
01 - 23 Accel/Decel Time Unit
Factory Setting: 01
Settings 00 Unit: 1 sec
01 Unit: 0.1 sec
02 Unit: 0.01 sec
The Acceleration Time is used to determine the time required for the AC motor drive to ramp
from 0 Hz to Maximum Output Frequency (Pr.01-00). The Deceleration Time is used to
determine the time required for the AC motor drive to decelerate from the Maximum Output
Frequency (Pr.01-00) down to 0 Hz.
The Acceleration/Deceleration Time 1, 2, 3, 4 are selected according to the Multi-Function
Input Terminals Settings. See Pr.04-04 to Pr.04-09 for more details.
Pr.01-23 setting can change the accel./decel. time unit of Pr.01-09~01-12, Pr.01-18~01-21,
Pr.01-13 and Pr.01-22 and also affect the setting of accel./decel. time.
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