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2.3 Counter Interface (X1, X2, X3)
The definitions below apply for each of the encoder inputs!
3 RS422 (line driver) or analog Inputs (1 Vpp) for square-wave encoder signals and reference marks;
Input frequency:
Encoders with TTL signals: max. 500 kHz (
a
slope time ≥0.5 µs)
Encoders with analog signals (1Vpp):
• max. 200 kHz at times 20 interpolation
• max. 160 kHz at times 25 interpolation
• max. 200 kHz at times 40 interpolation
• max. 160 kHz at times 50 interpolation
• max. 200 kHz at times 80 interpolation
• max. 160 kHz at times 100 interpolation
• max. 80 kHz at times 200 interpolation
• max. 40 kHz at times 400 interpolation
1 TTL input for encoder interference signal
2 TTL inputs for encoder trigger signals
Encoder power supply: 5.2 V; max. 0.2 A
2.4 I/O Interface (X4)
8 inputs (3–30 V) that can be used for ref. pulse inhibit, counter load signal,
synchrones or asynchrones latch signal or for special assignment
4 outputs (TTL) to cascade several cards or for special assignment
2.5 Counter Operating Modes
3 counter channels, 32 bits each; one load and two latch registers for each channel
To count the square-wave signals of encoders with TTL signals
To count square-wave signals and additional interpolation of encoders with analog signals (1 Vpp)
Event counter
Integrated timer for pulse widths, frequency and speed measurements as well
as cyclic storage of counter values in the latch registers
2.6 Latch Logic
Asynchronous latching of the counter values for each encoder channel
by software, reference mark of the encoder or external hardware signal
Synchronous storage of several counters by software, timer or external signal
Output signal for cascading several modules; can be programmed for software,
timer or external hardware synchronisation
Storing time: 62.5 ns