Delta VFD-ED Series, User Manual

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Ch12 Descriptions of Parameter Settings | VFD-ED
12-12

Switch Frequency between First and Fourth Accel./Decel.
Control Mode VF VFPG SVC FOCPG FOCPM Default: 0.00
Settings 0.00–400.00 Hz
 Determines the frequency for the transition from acceleration and deceleration time 1 to acceleration and
deceleration time 4. You can also enable the transition from acceleration or deceleration time 1 to
acceleration and deceleration time 4 with the external terminals (Pr.02-01–Pr.02-08). The external terminal
has priority over Pr.01-23.
Frequency
1st/4th Acceleration/Deceleration Switching
01-23
4th Acceleration Time
4th Deceleration
Time
1st Acceleration
Time 1st Deceleration
Time
1st/4th
Acceleration
/Deceleration
Freq.

S-curve for Acceleration Begin Time S1

S-curve for Acceleration Arrival Time S2

S-curve for Deceleration Begin Time S3

S-curve for Deceleration Arrival Time S4

S-curve for Deceleration Arrival Time S5
Control Mode
VF VFPG SVC FOCPG FOCPM
Default: 1.00
Settings 0.00–25.00 sec.

Switch Frequency for S3/S4 Changes to S5
Control Mode VF VFPG SVC FOCPG FOCPM Default: 0.00
Settings 0.00–400.00 Hz
 Using an S-curve gives the smoothest transition between speed changes. The acceleration and
deceleration curve adjusts the acceleration and deceleration S-curve. When enabled, the motor drive
produces a different acceleration and deceleration curve according to the acceleration and deceleration
time.
 The Actual Acceleration Time = selected acceleration Time + (Pr.01-24 + Pr.01-25)
÷
2.
The Actual Deceleration Time = selected deceleration Time + (Pr.01-26 + Pr.01-27 + Pr.01-30 x 2)
÷
2.
 Use Pr.01-29 to set the switch frequency between S4 and S5 for smooth stopping.
 Set Pr.01-29 to the leveling speed of the elevator.