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MP2600iec Hardware Manual

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4.3 External Encoder Interface<br />

4.3 External Encoder Interface<br />

Item<br />

Number of<br />

channels<br />

Input circuit<br />

Counter modes<br />

Latch input<br />

Specification<br />

One channel (Phase A, Phase B, Index pulse)<br />

Phase A & B: 5V differential input (RS-422 compatible), non-insulated.<br />

Maximum frequency 4MHz.<br />

Index pulse: 5V/12V/24V photo coupler input. Maximum frequency<br />

500kHz (pre-quadrature. This signal is used for external encoder latch.<br />

Quadrature, pulse and direction, up/down<br />

Latch on index pulse or DI_01 digital input.<br />

<strong>Hardware</strong> latency: 5s or less (index pulse)<br />

Two RS-422 compatible inputs are provided for encoder phases A and<br />

B. One position latch input which supports a 5V, 12V, or 24V digital input <br />

signal is provided.<br />

CN13 Connector<br />

Pulse generator<br />

4<br />

PA+<br />

Phase A<br />

+5V<br />

R<br />

5<br />

PB-<br />

PA-<br />

0V<br />

29<br />

PB+<br />

Phase B<br />

+5V<br />

R<br />

30<br />

6<br />

GND<br />

0V<br />

+5V<br />

31<br />

GND<br />

R<br />

35<br />

PIL<br />

R<br />

9<br />

PILC(5V)<br />

R<br />

34<br />

PILC(12V)<br />

R<br />

10<br />

PILC(24V)<br />

Encoder Input Circuit<br />

15

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