Delta Electronics VFD-EL manual 01.13, 01.14, 01.15, The definition of Accel./Decel. Time

Chapter 4 Parameters

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).

Frequency

01.00

Max. output Frequency

setting operation frequency

01.05

Min. output frequency

0 Hz
	Accel. Time
	01.09	01.11

Decel. Time

01.10 01.12

The definition of

Accel./Decel. Time

Time

Resulting		Resulting
Accel. Time		Decel. Time
	Resulting Accel./Decel. Time

01.13	Jog Acceleration Time		Unit: 0.1/0.01
	Settings	0.1 to 600.0/0.01 to 600.0 sec	Factory Setting: 1.0
01.14	Jog Deceleration Time		Unit: 0.1/0.01
	Settings	0.1 to 600.0/0.01 to 600.0 sec	Factory Setting: 1.0
01.15	Jog Frequency		Unit: 0.01
	Settings	0.10 to Fmax (Pr.01.00)Hz	Factory Setting: 6.00

Only external terminal JOG (MI3 to MI12) can be used. When the Jog command is “ON”, the AC motor drive will accelerate from Minimum Output Frequency (Pr.01.05) to Jog Frequency (Pr.01.15). When the Jog command is “OFF”, the AC motor drive will decelerate from Jog Frequency to zero. The used Accel/Decel time is set by the Jog Accel/Decel time (Pr.01.13, Pr.01.14).

4-34 Revision August 2008, 2ELE, V1.02