Delta VFD13AME43ANNAA User Manual

Chapter 12 Description of Parameter SettingsME300
12.1-08-4
 Sets the D controller gain to determine the error change response. Using a suitable differential
time reduces the P and I controllers overshoot to decrease the oscillation for a stable system. A
differential time that is too long may cause system oscillation.
 The differential controller acts on the change in the error and cannot reduce the interference. Do
not use this function when there is significant interference.

Upper Limit of Integral Control
Default: 100.0
Settings 0.0–100.0%
 Defines an upper bound for the integral gain (I) and therefore limits the master frequency. The
formula is:
 Integral upper bound = Maximum Operation Frequency (Pr.01-00) x (Pr.08-04%). An excessive
integral value causes a slow response due to sudden load changes and may cause motor stall or
machine damage.

PID Output Command Limit (Positive Limit)
Default: 100.0
Settings 0.0–100.0%
 Defines the percentage of the output frequency limit during the PID control. The formula is
Output Frequency Limit = Maximum Operation Frequency (Pr.01-00) × Pr.08-05%.

PID Feedback Value by Communication Protocol
Default: 0.00
Settings
-200.00
–200.00%
 Use communication to set the PID feedback value when the PID feedback input is set to
communication (Pr.08-00 = 7 or 8).

PID Delay Time
Default: 0.0
Settings 0.0–2.5 sec.
PID Mode Selection
Default: 0
Settings 0: Serial connection
1: Parallel connection
 0: Use conventional PID control structure.
1: The proportional gain, integral gain and differential gain are independent. You can customize
the P, I and D value to fit your application.
 Pr.08-07 determines the primary low pass filter time when in PID control. Setting a large time
constant may slow down the drive’s response rate.
 PID control output frequency is filtered with a primary low pass function. This function can filter a
mix of frequencies. A long primary low pass time means the filter degree is high and a short
primary low pass time means the filter degree is low.

Delta VFD13AME43ANNAA Specifications

General

Brand	Delta
Model	VFD13AME43ANNAA
Category	DC Drives
Language	English