HP 30 30 manual EXT-50~53 Speed limit for Torque mode operation, Factory

Chapter 6 - Parameter Description [EXT]

AM Output Voltage = (Output voltage / Max. output voltage) × 10V

[DC link vtg]

The AM terminal outputs the DC link voltage of inverter. The output value is determined by,

AM Output Voltage = (DC link voltage / Max. DC link voltage) × 10V

[Torque]

The AM terminal outputs the Torque of the motor. The output value is determined by,

AM Output Voltage = (Torque current/ Rated Torque current ) * 10V* AM output gain (EXT-41~42) / 150

EXT-50~53 [Speed limit for Torque mode operation]

Related parameters : FU2-39 [Control mode selection]

FU1-20 [max Freq]
EXT-27[Trq + Limit]		EXT-28[Trq - Limit]
Code	LCD		Description	Factory	Setting
	display			setting	range
EXT-	Speed		Speed Limit	100[%]	0 –
50	Limit		Level		100[%]
EXT-	Speed		Speed Limit	10[%]	0 –
51	Bias		Bias		200[%]
EXT-	Speed		Speed Limit	1	1 – 10
52	Gain		Gain
					0
EXT-	Speed Dir		Speed Limit	1	(Reverse)
53			Direction	(Forward)	1
					(Forward)

By setting speed limit, this parameter prevents the motor from rotating excessively high speed due to no-load or light load connection during Vector_TRQ in FU2-39 [Control mode].

Set as the percent of EXT-50 [Speed limit level] and EXT- 51 [Speed Limit Bias] to FU1-20 [Max Freq].

If EXT-53 [Speed Limit Direction]= FWD, EXT-51 [Speed Limit Bias]

FWD Torque control is set, the FWD Torque control is shown as below. In other words, when the motor rotates in Forward direction, FWD torque is kept controlled in the

range of EXT-50 [Speed Limit Level] + EXT-51 [Speed bias]. When the motor rotates in Reverse direction, REV torque is controlled in EXT-51[Speed Limit Bias] and torque is controlled constant in the above speed range. EXT-52 [Speed limit gain] is the curve value to reduce the FWD torque or to increase to the constant torque in Reverse direction.

Output torque

DRV_00
Torque
Command
	Speed
EXT_51	EXT_51
Speed Bias	Speed Bias
	EXT_50
	Speed Limit

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