LG Electronics C Series manual F59 Stall prevention select F60 Stall prevention level

Chapter 12. Protective functions

12.3 Stall prevention

Group

Function group 1

I/O group

LED	Parameter Name	Set
Display		value

F59	[Stall prevention select]		-
F60	[Stall prevention level]		-
I54	[Multi-function output	7
	terminal select]
I55	[Multi-function relay	7
	select]

Min/Max setting

0/7

30/150

0/17

	Factory	Unit
	default
3

150%

ƒDuring acceleration: Motor acceleration is stopped when current exceeding the value set in F60 flows.

ƒDuring constant run: Motor decelerates when current exceeding the value set in F60 flows.

ƒDuring deceleration: Motor deceleration is stopped when inverter DC link voltage rises above a certain voltage level.

ƒF60: The value is set as the percent of motor rated current (H33).

ƒI54, I55: Inverter outputs signals through multi-function output terminal (MO) or relay output (30AC) when stall prevention function is activated. Stall prevention operation can be monitored by external sequence.

F59: Stall prevention can be set as the table below.

F59	[Stall		During	During	During
	prevention	Setting	Deceleration	constant	Acceleration
	select]			speed
			Bit 2	Bit 1	Bit 0
		0	-	-	-
		1	-	-	9
		2	-	9	-
		3	-	9	9
		4	9	-	-
		5	9	-	9
		6	9	9	-
		7	9	9	9

For example, set F59 to 3 to make stall prevention active during Acceleration and constant run.

When stall prevention is executed during acceleration or deceleration,

Accel/Decel time may take longer than the user-setting time.

When stall prevention is activated during constant run, t1, t2 executed in accordance with the value set in ACC - [Accel time] and dEC - [Decel time].

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