Schneider Electric 58 TRX manual Logic inputs Impedance = 3.5 kΩ

Altivar® 58 TRX AC Drives

I/O Extension Cards

DigitalIOTerms.eps

COM A A – B B – AO LI 5 LI 6 + 24 LO

Terminals for the I/O Extension Card with Encoder Inputs

I/O Extension Card with Encoder Inputs (VW3A58202U)

This card includes two 24 Vdc logic inputs, one 24 Vdc open collector logic output, one 0 to 20 mA X-Y configurable analog output, and A+, A–, B+, B– inputs which may be used for speed correction with an incremental encoder or with an inductive or photoelectric sensor.

The figure to the left shows the location of the terminals for this I/O card, while the tables below describe the terminals. See page 50 for a summary of configurable I/O functions.

Functions and Characteristics of Terminals

Terminal	Function	Characteristics
		0 V
COM	Common	At the same potential as COM on the
		main control board.
A
A–	Incremental logic inputs	Nominal voltage 24 Vdc,
B		Input impedance 785 Ω ±10%
B–
AO	Analog output	0 - 20 mA, (x - y configurable)
		Max. Load impedance = 500 Ω
LI5		2 logic inputs
	Logic inputs	Impedance = 3.5 kΩ
LI6
		Supplied by +24 V
+24	Supply for logic inputs	+24 V, Is = 200 mA maximum◆
LO	Logic output	Open collector output
LO+	Supply for logic output	+24 V supply, Is = 20 mA maximum

◆The 200 mA is the sum of the current supplied by the +24 on the control board and the +24 on the I/O extension card.

Specifications

	Protected against short circuits and overloads
Available internal supplies	1 output +10 V ± 1%, Is = 10 mA maximum
	1 output -10 V ±1%, Is = 10 mA maximum
	1 output +24 V (20 V min., 30 V max.), Is = 200 mA maximum◆
	2 reassignable logic inputs. Impedance = 3.5 kΩ . Compatible with level 1 PLCs
	according to IEC 60065A-68. Maximum shielded cable length: 330 ft (100 m).
Logic Inputs LI	Supply: +24 Vac (11 V min., 30 V max.)
	State 0 if < 5 V, state 1 if > 11 V.
	The logic inputs are sampled every 2 ms, maximum.
	1 reassignable open collector logic output, compatible with level 1 PLCs according to
	IEC 60065A-68.
Logic Output LO	Supply: +24 V (12 V min., 30 V max.),
	maximum current = 20 mA with internal source or 200 mA with external source.
	The logic output is updated every 2 ms, maximum.
	1 reassignable 0 - 20 mA analog output, (x - y configurable).
	Maximum load impedance = 500 Ω .
Analog Output AO	Resolution: 0.04 mA (9 bits)
	Linearity: ± 0.1 mA
	Accuracy: ± 0.2 mA
	The analog output is updated every 2 ms, maximum.
	For incremental encoder (TTL, line driver, push pull) or open collector type
	(NPN detector, three-wire inductive, or photoelectric sensor).
	Nominal voltage: 24 Vdc (19.2 to 30 V).
Logic Inputs A, A-, B, B-	Input impedance: 785 Ω ±10%.
	Maximum signal frequency: 33 kHz with motor operating at drive controller high
	speed setting (HSP).
	It is preferable to use an external 24 V external supply for the incremental encoder.

◆The 200 mA is the sum of the current supplied by the +24 on the control board and the +24 on the I/O extension card.

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