Rockwell-automation 1794-IJ2XT FLEX I/O Frequency Input Modules User M Instrukcja Użytkownika Pobierz pdf (Strona 16)

Publication 1794-6.5.11 - September 2011

6 Overview of the Frequency Input Module

Input Capabilities

The frequency module has 2 input channels (mode dependent). Each of the 2

input channels may accept these input signals:

• magnetic pickup – 500 mV…28V AC peak (optional 50 mV…28V AC

peak for increased signal sensitivity)

• proximity probe inputs

– compatible with Bently Nevada 3300 – 5 mm (0.197 in.) and 8 mm

(0.315 in.) – proximity transducer systems

– provides 1 isolated 24V DC power supply (2 channels rated at 30 mA

each) to power external devices

– vortex flowmeter – 6V and 3V

You configure the 2 input channels for your specific application(s). Each input

channel has two input selections:

Channel 0

Channel 1

Frequency Input (F0)

Gate Input (G0)

Frequency Input (F1)

Gate Input (G1)

Frequency Input (F0-F1) – you connect

your input device to this input (ac, proximity

sensors switch, magnetic, vortex )

Gate Input (G0-G1) – you connect your

input device to this input (ac, proximity

sensors switch, magnetic, vortex )

used to determine direction – CW or CCW

2 input channels

FREQ

GATE

FREQUENCY INPUT 2 CHANNEL

1794-IJ2

Allen-Bradley

F0F

FREQ GATE

1F 1 F

OUT

45557

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 86 87

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Rockwell-automation 1794-IJ2XT FLEX I/O Frequency Input Modules User M Instrukcja Użytkownika Strona 16