Delta VFD11AMS21AFSHA, User Manual

Page: 220 / 445

Chapter 12 Description of Parameter Settings

MS300
(High Speed Model)
12-03-19
For example:
If Pr. 03-63 = 1V; Pr. 03-64 = 10 %, then the output will become 0 % when AVI input is
≤ 1 V.
If input is swing between 1 V and 1.1 V, drive’s output frequency will beats between 0% and
10%.

Negative AVI Voltage Lowest Point
Factory Setting: 0.00
Settings 0.00~ -10.00 V
(valid when Pr. 03-28 set as -10 V ~ +10 V)

Negative AVI Voltage Proportional Lowest Point
Factory Setting: 0.00
Settings -100.00~100.00 %
(valid when Pr. 03-28 set as -10 V ~ +10 V)

Negative AVI Voltage Mid-point
Factory Setting: -5.00
Settings 0.00~ -10.00 V
(valid when Pr. 03-28 set as -10 V ~ +10 V)

Negative AVI Voltage Proportional Mid-point
Factory Setting: -50.00
Settings -100.00~100.00 %
(valid when Pr. 03-28 set as -10 V ~ +10 V)

Negative AVI Voltage Highest Point
Factory Setting: -10.00
Settings 0.00~ -10.00 V
(valid when Pr. 03-28 set as -10 V ~ +10 V)

Negative AVI Voltage Proportional Highest Point
Factory Setting: -100.00
Settings -100.00~100.00 %
(valid when Pr. 03-28 set as -10 V ~ +10 V)
 When setting negative voltage AVI to frequency command, it -100 % corresponds to Fmax
(Pr. 01-00 Max. operation frequency) and the motor runs in reverse direction.

The 3 parameters (Pr. 03-69, Pr. 03-71 and Pr. 03-73) must meet the following argument:
Pr. 03-69 < Pr. 03-71 < Pr. 03-73 The 3 proportional points (Pr. 03-70, Pr. 03-72 and Pr. 03-74)
doesn’t have any limit. Between two points is a linear calculation
.

The output % will become 0% when the negative AVI input value is lower than low point setting.
For example:
If Pr. 03-63 = -1V; Pr. 03-64 = 10 %, then the output will become 0% when AVI input is
≥ -1V. If
the AVI input is swing between -1V and -1.1V, drive’s output frequency will beats between 0 %
and 10 %.