Heidenhain PWM 8 Manual do Utilizador descarregar pdf (Página 41)

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Measure amplitudes:

Measuring range: 0.2 Vpp - 1.6 Vpp

Measuring frequency: 10 Hz - 50 kHz

Tolerance:

without adjustment via software: ± 5 %

with adjustment via software: ± 3 %

Terminating resistance: 121 Ω

Fault detection signal: A and B < 0.3 Vpp

Encoder output:

Output signal: like input signal with U

8.6 Specifications of TTL Interface Board

Maximum input voltage: ± 7V

Maximum input frequency: approx. 2 MHz

Note:

The maximum input frequency only stands for the cutoff frequency of the square-wave input at PWM 8

(signal source: frequency generator).

Measure current/voltage:

Measuring range current: 0 - 500 mA

Measuring range voltage: 0 - 10 V

Tolerance: ± 3 %

Measure amplitudes:

Measuring range high level: 2.5 - 7.5 V

Measuring range low level: 0 - 2.5 V

Resolution: 50 mV

Measuring frequency: 10 Hz - 200 kHz

Tolerance: ± 50 mV

Terminating resistance:

From encoder signal to U-MSYS 215 Ω

From encoder signal to GND 90,9 Ω

Special feature of TTL interface board:

Owing to the input wiring, the PHA/TV display works properly even in the case of a cable break. The missing

signals are generated internally and output at the encoder output. Cable breaks can be found in the mode

"Measure Signal Amplitudes" or by checking the encoder signals at the BNC sockets.

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Heidenhain PWM 8 Manual do Utilizador Página 41