LG Electronics SV-iC5 Series manual Basic functions

					9. Basic functions
Manual Torque Boost
Group	LED display	Parameter name	Set	Min/Max	Factory	Unit
			Value	range	defaults

Function	F27	[Torque boost select]					0		0/1	0
group 1
	F28	[Torque	boost	in	forward
		direction]				-		0/15		5	%
	F29	[Torque	boost	in	reverse
		direction]

Set F27 to 0 {Manual torque boost}.

The values of [Torque boost in forward/reverse direction] are set separately in F28 and F29.

CAUTION

If the boost value is set much higher than required, it may cause motor overheating due to over- energizing.

Voltage

100%

No torque boost

FX torque

boost

Time

RX torque

boost

FX

RX

Auto Torque Boost

Group	LED Display	Parameter Name	Set		Min/Max		Factory	Unit
			Value		Range		Defaults
Function	F27	[Torque boost select]	1	0/1		0
group 1
Function	H34	[No Load Motor Current]	-	0.1/12		-		A
group 2
	H41	[Auto tuning]	0	0/1		0
	H42	[Stator resistance (Rs)]	-	0/5.0		-		Ω

Before Auto Torque Boost setting, H34 and H42 should be set correctly (See page 10-6, 10-8). Set F27 to 1 {Auto torque boost}.

The inverter automatically boosts the output voltage by calculating torque boost value using motor parameters.

9-17 SV-iC5