Delta Electronics VFD-S manual Sleep Function, A-10, A-11, A-12, A-13

Chapter 5 ParametersVFD-S Series

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

A-10	Sleep Frequency		Unit: 0.1
	Settings	d0.0 to d400Hz	Factory Setting: d0.0
A-11	Wakeup Frequency		Unit: 0.1
	Settings	d0.0 to d400Hz	Factory Setting: d0.0
A-12	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.

Frequency Command	Actual running
	output frequency

A-11

Wakeup Frequency

A-10

Sleep Frequency
			Sleep Period	0Hz
			A-12
			Sleep Function
A-13	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

Revision August 2008, SE09, SW V2.61 5-77