Delta VFD-EL-W Series, User Manual

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Chapter 4 Parameters

VFD-EL-W
4-89
10.10 Gain Over the PID Detection Value Unit: 0.1
Settings
0.0–10.0
Default: 1.0

Sets the gain adjustment over the feedback detection value. Refer to the PID closed-loop control diagram
in Pr.10.06 for details.
10.12 PID Deviation Level Unit: 0.1
Settings 0.0–100.0% Default: 10.0
10.13
PID Deviation Detection Time Unit: 0.1
Settings 0.1–300.0 sec. Default: 5.0

Sets the detection of the deviation between the set point and the feedback signal value.

The base for Pr.10.12 is Pr.01.00. When the PID feedback control is enabled, and (PID set point source –
feedback) is larger than Pr.10.12, and the time exceeds the Pr.10.13 setting, then the multi-function output
terminal #16 (PID Feedback Error) displays as a warning and acts according to Pr.10.20 settings.

When you set Pr.10.12 to 0, PID feedback error detection is disabled.
10.14 Sleep Detection Time Unit: 0.1
Settings 0.0–6550 sec. Default: 0.0
10.15 Sleep Frequency Unit: 0.01
Settings 0.00–400.00 Hz Default: 0.00
10.16 Wake-up Frequency Unit: 0.01
Settings 0.00–400.00 Hz Default: 0.00

Sleep mode setting requirements:

PID function must be enabled.
 The wake-up frequency Pr.10.16 setting must be higher than the sleep frequency Pr.10.15, and ensure
that there must be an appropriate difference between them (5 Hz or above) to prevent frequent switching
between the two frequency status.
 The sleep frequency Pr.10.15 setting must be higher than the Pr.01.08 output frequency lower limit to
prevent being in sleep mode.
 The sleep frequency Pr.10.15 setting must be higher than the Pr.01.05 minimum output frequency.

Sleep/wake-up mode status description for the AC motor drive:
 When the actual output frequency H < Pr.10.15 and the time exceeds the Pr.10.14 setting, the AC motor
drive no longer outputs and is in sleep mode after the AC motor drive decelerates to Pr.01.05 minimum
output frequency following the deceleration time limit.

When the AC motor drive is in sleep mode, the frequency command F is still calculated by PID. The
state of the wake-up shows as the following diagram.
 Before the frequency command F calculated by the PID reaches the wake-up frequency Pr.10.16, the
AC motor drive is in sleep mode, and the output frequency H is 0 Hz. The duration of this period of
time is affected by the PID parameters (Pr.10.02, Pr.10.03, and Pr.10.04).
 When the frequency command F calculated by the PID reaches the wake-up frequency Pr.10.16, the
AC motor drive output frequency H accelerates from Pr.01.05 minimum output frequency to Pr.10.16
wake-up frequency following the V/F curve.
 When the actual output frequency H of the AC motor drive accelerates to Pr.10.16 wake-up
frequency, control the AC motor drive output frequency H by PID.