Delta Electronics VFD-M - Manual (Page 59)

Chapter 4 Parameters|
4-24 Revision May 2008, ME14, SW V3.04
(2) Fans and Pumps
Motor Spec. 60Hz
V
220
10
1.5 60.0f
Factory Settings
Set value No.
Pr.03 60.0
Pr.04 60.0
Pr.05 220.0
Pr.06 30
Pr.07 50.0
Pr.08 1.5
Pr.09 10.0
30
50
Motor Spec. 50Hz
V
220
10
1.3 50.0f
Set value No.
Pr.03 50.0
Pr.04 50.0
Pr.05 220.0
Pr.06 25
Pr.07 50.0
Pr.08 1.3
Pr.09 10.0
25
50
(3) High Starting Torque
Motor Spec. 60Hz
V
220
18
1.5 60.0f
Factory Settings
Set value No.
Pr.03 60.0
Pr.04 60.0
Pr.05 220.0
Pr.06 3
Pr.07 23.0
Pr.08 1.5
Pr.09 18.0
3
23
Motor Spec. 50Hz
V
220
14
1.3 60.0f
Set value No.
Pr.03 50.0
Pr.04 50.0
Pr.05 220.0
Pr.06 2.2
Pr.07 23.0
Pr.08 1.3
Pr.09 14.0
2.2
23
Pr.10 Acceleration Time 1 Unit: 0.1 or 0.01 sec
Pr.11 Deceleration Time 1 Unit: 0.1 or 0.01 sec
Pr.12 Acceleration Time 2 Unit: 0.1 or 0.01 sec
Pr.13 Deceleration Time 2 Unit: 0.1 or 0.01 sec
Settings 0.1 to 600.0 sec or 0.01 to 600.0 sec Factory Setting: 10.0
Pr.10. This parameter is used to determine the time required for the AC drive to ramp from 0
Hz to its Maximum Output Frequency (Pr.03). The rate is linear unless the S-Curve (Pr.14) is
“Enabled”.
Pr.11. This parameter is used to determine the time required for the AC drive to decelerate
from the Maximum Output Frequency (Pr.03) down to 0 Hz. The rate is linear unless the S-
Curve (Pr.14) is “Enabled”.
Pr.12 and Pr.13: Provide an additional Accel/Decel time although Time 1 is the default. A
Multi-Function input terminal must be programmed to select Accel/ or Decel/ Time 2 and the
terminal must be closed to select Accel/Decel Time 2 (See Pr.38 to Pr.42).
In the below diagram, suppose the Maximum Output Frequency is 60 Hz (Master Freq),
Minimum Output Frequency (start-up) is 1.0 Hz, and accel/decel time 1 is 10 seconds. The
actual time for the AC drive to accelerate from start-up to 60 Hz is 9.83 seconds (deceleration
time is also 9.83 seconds), can be determined by the formula.