5
VFD-B Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-7
01 - 08
Lower Bound of Output Frequency Factory Setting: 00
Settings 00 to 100% Unit: 1%
The Upper/Lower Bound is to prevent operation error and machine damage.
If the Upper Bound of Output Frequency is 50Hz and the Maximum Output Frequency is
60Hz, the Maximum Output Frequency will be limited to 50Hz.
If the Lower Bound of Output Frequency is 10Hz, and the Minimum Output Frequency
(Pr.01-05) is set at 1.0Hz, then any Command Frequency between 1.0-10Hz will
generate a 10Hz output from the drive.
This parameter must be equal to or less than the Upper Bound of Output Frequency
(Pr.01-07).
The Lower Bound of Output Frequency value = (Pr.01-00 x Pr.01-08) /100
01 - 09
Acceleration Time 1 (Taccel 1) a Factory Setting: 10.0
01 - 10
Deceleration Time 1 (Tdecel 1) a Factory Setting: 10.0
01 - 11
Acceleration Time 2 (Taccel 2) a Factory Setting: 10.0
01 - 12
Deceleration Time 2 (Tdecel 2) a Factory Setting: 10.0
01 - 18
Acceleration Time 3 (Taccel 3)
a
Factory Setting: 10.0
01 - 19
Deceleration Time 3 (Tdecel 3)
a
Factory Setting: 10.0
01 - 20
Acceleration Time 4 (Taccel 4)
a
Factory Setting: 10.0
01 - 21
Deceleration Time 4 (Tdecel 4)
a
Factory Setting: 10.0
Settings 0.01 to 3600.0 sec Unit: 0.1/0.01sec
♦ Factory setting 60sec is for the models of 30 HP and above.
Unit can be set by Pr.01-23.
The Acceleration Time is used to determine the time required for the AC drive to ramp
from 0 Hz to its Maximum Output Frequency (Pr.01-00). The rate is linear unless
S-Curve is “Enabled.”
The Deceleration Time is used to determine the time required for the AC drive to
decelerate from the Maximum Output Frequency (Pr.01-00) down to 0 Hz. The rate is
linear unless S-Curve is “Enabled.”
The Acceleration/Deceleration Time 1, 2, 3, 4 is switched according to the Multi-Function
Input Terminals Setting . See Pr.04-04 to Pr.04-09 for more details.
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