Delta VFD1A5MS43ANSAA User Manual

Chapter 12 Descriptions of Parameter SettingsMS300
411

08-66
PID Target Value Setting
Default: 50.00
Settings
-100.00–100.00%
 The target value setting of the PID controller (Pr.08-66) is a relative value.

08-67
Master and Auxiliary Reverse Running Cutoff Frequency
Default: 10.0
Settings
0.0–100.0%
 100% corresponds to Pr.01-00 the maximum operation frequency
 In some cases, it is only possible for the PID to control the set point and the feedback to the
same status when the PID output frequency is negative (the motor runs in reverse). However, an
excessively high reverse frequency is not allowed in some cases, and Pr.08-67 is used to
determine the upper limit of the reverse frequency.

08-68
PID Deviation Limit
Default: 0.00
Settings
0.00–100.00%
 When Pr.08-68 is not set to 0, the PID deviation limit function is enabled.
 When PID deviation ≤ PID deviation limit, PID stops adjusting, which means the PID output
frequency maintains the value at last status. This function is effective for some closed-loop
control applications.

08-69
Integral Separation Level
Default: 0.00
Settings
0.00–100.00%
 Reduces overshoot when overshoot occurs in the PID feedback at start-up.
 When Pr.08-69 is not set to 0, the integral separation function is enabled.
 The benchmark for the integral separation level is the PID error %.
 The integral separation function activates only once at start-up.
 When PID deviation ≥ Pr.08-69, the integral effect is cancelled to avoid the increasing system
overshoot due to the integral effect. When PID deviation is smaller than Pr.08-69, the integral
effect is activated to eliminate the steady-state error.
08-70
Smart Start-Up Level
Default: 5.00
Settings
0.00–100.00%

08-71
Smart Start-Up Frequency Command
Default: 0.00
Settings
0.00–599.00 Hz

08-72
Smart Start-Up Acceleration Time
Default: 3.00
Settings
0.00–600.00 sec.
 When Pr.08-71 is not set to 0, the smart start-up function is enabled.

Delta VFD1A5MS43ANSAA Specifications

General

Brand	Delta
Model	VFD1A5MS43ANSAA
Category	DC Drives
Language	English