Delta Electronics VFD-VL manual Operation time min, Load, Fac tor %, 60Hz, 50 100 150

Chapter 4 Parameters

The parameter is set by the output frequency, current and operation time of the drive for activating the I2t electronic thermal protection function. The function will be activated for the 150% * setting current for the setting of Pr.06-13.

Operation time( min)

			5
			4
			3
			2		60Hz
			1
						Load
			0	50 100 150 200		fac tor (% )
06-14	Heat Sink Over-heat (OH) Warning						Unit: 0.1
Control	VF	VFPG	SVC	FOCPG TQCPG FOCPM			Factory setting: 85.0
mode
	Settings	0.0 to 110.0 oC
06-15	Stall Prevention Limit Level						Unit: 1
Control	VF	VFPG	SVC				Factory setting: 50
mode
	Settings	0 to 100% (refer to Pr.06-02, Pr.06-03)

When the operating frequency is larger than Pr.01-01, Pr06-02=150%, Pr. 06-03=100% and Pr.

06-15=80%:

Stall Prevention Level during acceleration = 06-02x06-15=150x80%=120%.

Stall Prevention Level at constant speed= 06-03x06-15=100x80%=80%.

Stall Prevention Level

06- 02		0 1-0 1	x06- 02
		output frequency
06-15
	01-01	frequency

4-66 Revision Nov. 2008, VLE1, SW V1.03