Delta VFD-E

Chapter 4 Parameters|
Revision Jan. 2009, 06EE, SW--PW V1.12/CTL V2.12 4-51
 Related parameters: Pr.01.16(Auto acceleration / deceleration (refer to Accel/Decel time
setting)), Pr.01.17(Acceleration S-Curve), Pr.01.18(Deceleration S-Curve), Pr.04.05(Multi-
function Input Terminal (MI3)), Pr.04.06(Multi-function Input Terminal (MI4)), Pr.04.07(Multi-
function Input Terminal (MI5)) and Pr.04.08(Multi-function Input Terminal (MI6))
01.09
01.11
01.10
01.12
Frequency
Time
Accel. Time
Decel. Time
The definition of Accel./Decel. Time
01.00
Max. output
Frequency
setting
operation
frequency
Min. output
frequency
01.05
01.19 Accel/Decel Time Unit
Factory Setting: 0
Settings 0 Unit: 0.1 sec
1 Unit: 0.01 sec
 The Acceleration/Deceleration Time 1, 2, 3, 4 are selected according to the Multi-function Input
Terminals Settings. See Pr.04.05 to Pr.04.08 for more details.
 In the diagram shown below, the Acceleration/Deceleration Time of the AC motor drive is the
time between 0 Hz to Maximum Output Frequency (Pr.01.00). Suppose the Maximum Output
Frequency is 60 Hz, Minimum Output Frequency (Pr.01.05) is 1.0 Hz, and
Acceleration/Deceleration Time is 10 seconds. The actual time for the AC motor drive to
accelerate from start-up to 60 Hz and to decelerate from 60Hz to 1.0Hz is in this case 9.83
seconds. ((60-1) * 10/60=9.83secs).