LG Electronics SV-iC5 Series manual Protective functions

12. Protective functions

12.Protective functions

12.1Electronic Thermal

Group	LED display	Parameter Name			Set value		Min/Max		Factory		Unit
							setting		default
Function group	F50	[Electronic thermal			1	0/1		0
1		select]
	F51	[Electronic thermal level for 1		-				150		%
		minute]
						50/150
	F52	[Electronic thermal level	for	-				100		%
		continuous]
	F53	[Motor type]		-		0/1		0
Select F50 – [Electronic thermal select] to 1.

It activates when the motor is overheated (time-inverse). If current greater than set in F51 flows, inverter output is turned off for the preset time in F51- [Electronic thermal level for 1 minute].

F51: Enter the value of max current that is capable of flowing to the motor continuously for one minute. It is set in percent of motor rated current. The value cannot be set lower than F52.

F52: Enter the amount of current for continuous operation. Normally motor rated current is used. It cannot be set greater than F51.

F53: For an inductance motor, cooling effects decrease when a motor is running at low speed. A special motor is a motor that uses a separately powered cooling fan maximize cooling effect even in low speed. Therefore, as the motor speed changes, the cooling do not change.

F53

[Motor type]

Standard motors having a cooling fan directly

0

connected to the shaft

Special motor that uses a separately powered cooling

1

fan.

Current for

continuous [%]	H53 = 1
100
95	H53 = 2
65
	Freq [Hz]
20	60

12-1 SV-iC5