Delta Electronics VFD-S User Manual

Chapter 5 Parameters|VFD-S Series 

Revision August 2008, SE09, SW V2.61 

5-77

 

 

This parameter selects the operation of the drive upon a loss of PID feedback signal. 

 

Sleep Frequency 

Unit: 0.1

 

Settings 

d0.0 to d400Hz 

Factory Setting: d0.0

 

Wakeup Frequency 

Unit: 0.1

 

Settings 

d0.0 to d400Hz 

Factory Setting: d0.0

 

Sleep Period 

Unit: 0.1

 

Settings 

d0.0 to d650 seconds 

Factory Setting: d0.0

 

 These parameters determine sleep functions of the AC drive.  If the command frequency falls 

below the sleep frequency, for the specified time in Pr. A-12, then the drive will shut off the 

output and wait until the command frequency rises above Pr. A-11.  Please see the below 

diagram. 

 

A-11

A-10

A-12

0Hz

 

 

PID User Defined 

Unit: 0.1

 

Settings 

d0.0 to d400 

Factory Setting: d0.0

 

 When parameter A-13 is set to 0, what F and H display is the actual value of setting 

frequency and output frequency. When this parameter is not set to 0, the display value of F 

and H = actual value ¯A-13/1-00. To set frequency with panel, communication, VR, AVI or 

ACI need to set according to the display value. For example, when 1-00=60.0Hz, if A-13 is set 

to 30.0 Hz, it means when the actual value of frequency is 30.00 Hz, the display value will be 

15.0 Hz . If you want to let drive run at 10.0Hz, the frequency command must be 5.0 Hz. But