Appendix A. Specifications

Encoder Output

Number of Axis

 

 

4 (independent)

Resolution

 

 

32-bit

 

 

Max. Quadrature

w/ Digital Filter

 

 

1.0 MHz

w/o Digital

 

 

 

 

Input Frequency

 

 

2.0 MHz

Filter

 

 

 

 

 

 

 

 

 

Digital Filter

 

 

4 stage

 

 

Drive Type

 

Single-ended or differential

Counter Mode

Quadrature, Up/Down, Count/Direction

Optical Isolation

 

 

2500 VDC

Max. Input Pulse

 

 

x 1, x 2, x 4

Frequency

 

 

 

 

 

 

 

 

Sample Clock

 

 

8, 4, 2, or 1 MHz

Frequency

 

 

 

 

 

 

 

 

Timer

 

 

 

 

 

 

Resolution

 

 

8-bit

 

 

Time base

 

50 K, 5 K, 500, 50, 5 Hz

Isolated Digital Input

 

 

 

 

 

Number of Channel

 

 

 

4

 

Optical Isolation

 

2500 VDC

 

Opto-isolator response time

 

 

25s

 

Over-voltage Protect

 

 

70 VDC

 

Input Voltage

VIH (max.)

 

30 VDC

 

VIH (min.)

 

10 VDC

 

 

 

VIL (max.)

 

3 VDC

 

Input Current

10 VDC

 

1.7 mA (typical)

 

12 VDC

 

2.1 mA (typical)

 

 

 

24 VDC

 

4.4 mA (typical)

 

Isolated Digital Output

 

 

 

 

 

Number of Channel

 

 

 

4

 

Optical Isolation

 

2500 VDC

 

Response time

 

20

s (max.)

 

Supply Voltage

 

TTL level

 

Sink/Source Current

 

50 mA max./channel

 

25

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Advantech PCI-1784 specifications Appendix A. Specifications, Encoder Output, Timer