Delta Electronics VFD-VL manual 07-11, 07-12, 07-13

Chapter 4 Parameters

Pr.07-07 to Pr.07-10 are for heavy load to prevent OV or OC occurs.

Frequency

			07-10
07-08		07-09	Dwell
Dwell			Frequency
		Dwell Time
Frequency			at Decel.
	07-07	at Decel.
at Accel.	Dwell Time
	at Accel.		Time
	Dwell at accel./decel.

07-11	Fan Control
Control	VF	VFPG	SVC FOCPG TQCPG FOCPM		Factory Setting: 2
mode
	Settings	0		Fan always ON
		1		1 minute after AC motor drive stops, fan will be OFF
		2		AC motor drive runs and fan ON, AC motor drive stops and fan OFF
		3		Fan ON to run when preliminary heat sink temperature attained
		4		Fan always OFF

This parameter is used for the fan control.

When setting to 3, fan will start to run until temperature is less than 40°C if temperature exceeds 40°C.

07-12	Torque Command		Unit: 0.1
Control	TQCPG		Factory Setting: 0.0
mode
	Settings	-100.0 to 100.0% (Pr. 07-14 setting=100%)

This parameter is torque command. When Pr.07-14 is 250% and Pr.07-12 is 100%, the actual torque command = 250X100% X motor rated torque.

07-13	Torque Command Source
Control	TQCPG			Factory Setting: 2
mode
	Settings	0	Digital keypad
		1	RS485 serial communication (RJ-11)
		2	Analog signal (Pr.03-00)

Revision Nov. 2008, VLE1, SW V1.03 4-77