Delta VFD4A8MS21ANSAA - Page 418

Chapter 12 Descriptions of Parameter SettingsMS300
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 When this parameter is not set to 0.00 seconds: Enables the PID acceleration/deceleration
command. For PID acceleration and deceleration, when the PID target value changes, the
command value increment/decrement is executed according to this parameter.
For example, if we set this parameter to 10.00 seconds, when PID target value changes from
0% to 100%, it takes 10 seconds for the PID command to change from 0% to 100%. In a similar
way, when PID target value changes from 100% to 0%, it takes 10 seconds for the PID
command to change from 100% to 0%.
08-29
Frequency Base Corresponding to 100.00% PID
Default: 0
Settings
0: PID control output 100.00% corresponding to maximum operation
frequency (Pr.01-00)
1: PID control output 100.00% corresponding to the input value of the
auxiliary frequency
 Valid only when you enable the master and auxiliary frequency functions.
When Pr.08-29 = 0, PID control outputs 100.00% corresponding to the maximum operation
frequency. When Pr.08-29 = 1, PID control outputs 100.00% corresponding to the auxiliary
frequency. (The PID output frequency changes when the auxiliary frequency command
changes.)

08-31
Proportional Gain 2
Default: 1.00
Settings
0.0–1000.0 (when Pr.08-23 setting bit 1 = 0)
0.00–100.00 (when Pr.08-23 setting bit 1 = 1)

08-32
Integral Time 2
Default: 1.00
Settings
0.00–100.00 sec.

08-33
Differential Time 2
Default: 0.00
Settings
0.00–1.00 sec.

08-65
PID Target Value Source
Default: 0
Settings
0: Frequency command (Pr.00-20, Pr.00-30)
1: Pr.08-66 setting
2: RS-485 communication input
3: External analog input (refer to Pr.03-00, Pr.03-01)
4: CANopen communication card
6: Communication card (does not include CANopen card)
7: Digital keypad potentiometer knob
 Selects the target value source for the PID controller.
 When Pr.08-65 = 0, the maximum operating frequency Pr.01-00 is 60 Hz, the error is 100%, and
Pr.08-01 = 1.00, then the output frequency is '‟1” times the Pr.01-00 maximum operating
frequency. Therefore, the output frequency = 60 × 100% × 1=60 Hz.