Siemens NCZ Specifications download pdf (Page 65)

4.3 Measuring system

4-65

SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition

Single-turn, multi-turn, and linear absolute measuring systems with two

90_ offset sinusoidal voltage signals A, B, and EnDat interface,

e.g. multi-turn encoder EQN 1325, single-turn encoder ECN 1313 or linear

absolute measurement system LC181.

Transfer incremental signals: Differential signals

A, A

and B, B

Amplitude A – A typ. 1 Vpp

Amplitude B – B

typ. 1 Vpp

Transfer serial signals: Differential signals

Data, Data

and Clock, Clock

Level: acc. to EIA 485

Power supply: 5 V ±5 %

Maximum supply current: 300 mA

Max. encoder signal frequency

that can be evaluated: 350 kHz

Note

For the above frequency, the signal amplitude must be

 60 % of the typical

amplitude and the deviation of the phase offset from the ideal 90



between

track A and B must be

  30



Pay attention to the frequency characteristic of the encoder signals.

A–A

B–B

90 el.

360 el.

Fig. 4-7 Signal curve for incremental tracks for a clockwise rotation

Absolute (EnDat)

measuring

systems

4 Descri

tion of the SINUMERIK 810D

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Siemens NCZ Specifications Page 65