Delta VFD2A8MS21ANSAA User Manual

Chapter 12 Descriptions of Parameter SettingsMS300
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3. PID Feedback Value Percentage (PID is in use, Pr.08-00 ≠ 0 and Pr.08-18 = 1)
When the PID feedback value reaches the sleep level (Pr.08-10), the drive starts to count
the sleep delay time (Pr.08-12). If the drive counts exceeding the sleep delay time, the
drive is in sleep mode (0 Hz). If the drive does not reach the preset sleep delay time, it
remains at the lower frequency limit (if the lower limit is not set to zero), or it remains at the
minimum output frequency set for Pr.01-07 (if the lower limit is set to zero) and waits until it
reaches the sleep time before going into sleep mode (0 Hz).
When the PID feedback value reaches the wake-up level (Pr.08-11), the drive starts to
count the wake-up delay time (Pr.08-12). Once it counts exceeding the wake-up delay
time, the drive starts to catch up to reach the PID Frequency command value by the
acceleration time.
Example 01: PID negative feedback
 Pr.08-10 must > Pr.08-11
 30kg is the reference
 Set the parameter:
Pr.03-00 = 5 (AVI is PID feedback)
Pr.08-00 = 1 (PID negative feedback: AVI
simulation input function select)
Pr.08-10 = 40% (Sleep reference:
12 kg = 40% × 30 kg)
Pr.08-11 = 20% (Wake-up reference:
6 kg = 20% × 30 kg)
Case 01: If feedback >12kg, frequency decreases.
Case 02: If feedback < 6kg, frequency increases.
Area
PID
Physical Quantity
Sleep area
> 12 kg, the drive
goes into sleep, the
motor goes into sleep
Excessive
area
between 6 kg and 12
kg, the drive remains
in current state
Wake-up area
< 6 kg, the drive
wakes-up, the motor
wakes-up

Delta VFD2A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD2A8MS21ANSAA
Category	DC Drives
Language	English