Schneider Electric altivar 58 telemecanique Preset speeds, Freewheel stop, DC injection stop

GP_ATV58_EN.fm Page 95 Mardi, 2. avril 2002 9:18 21

Configurable I/O Application Functions

Preset speeds

2, 4 or 8 speeds can be preset, requiring 1, 2, or 3 logic inputs respectively.

The following order of assignments must be observed : PS2 (LIx), then PS4 (LIy), then PS8 (LIz).

		2 preset speeds			4 preset speeds					8 preset speeds
	Assign : LIx to PS2			Assign : LIx to PS2 then,					Assignr : LIx to PS2
						LIy to PS4		LIy to PS4, then LIz to PS8
LIx		speed reference	LIy		LIx	speed reference	LIz	LIy		LIx	speed reference
0		LSP+reference	0		0	LSP+reference	0	0		0	LSP+reference
1		HSP	0		1	SP2	0	0		1	SP2
			1		0	SP3	0	1		0	SP3
			1		1	HSP	0	1		1	SP4
							1	0		0	SP5
							1	0		1	SP6
							1	1		0	SP7
							1	1		1	HSP

To unassign the logic inputs, the following order must be observed : PS8 (LIz), then PS4 (LIy), then PS2 (LIx).

Reference￿￿￿￿￿￿switching￿￿￿￿￿￿ ￿￿￿ ￿￿￿

Switching of two references (AI1 reference and AI2 reference) by logic input command. This function automatically assigns AI2 to speed reference 2.

Connection diagram

￿￿￿￿￿￿	Open contact, reference = AI2
	Closed contact, reference = AI1

Freewheel stop

Causes the motor to stop using the resistive torque only. The motor power supply is cut. A freewheel stop is obtained when the logic input opens (state 0).

DC injection stop

An injection stop is obtained when the logic input closes (state 1).

Fast stop

Braked stop with the deceleration ramp time reduced by a reduction factor dCF which appears in the drive menu.

A fast stop is obtained when the logic input opens (state 0).

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ENGLISH