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4.5 PWM 8 MODE: MEASURE AMPLITUDES

In this mode the vertices of the amplitudes of the incremental signals 1 and 2 are measured. The result

always refers to an individual signal period. With sinusoidal encoder signals (11µApp and 1Vpp) the positive

and the negative vertices are measured versus U

0, with square-wave encoder signals (TTL and HTL) low

and high level are measured versus 0V.

In the table below the maximum measuring ranges are listed for the different interface boards:

Interface board: 11µApp 1Vpp TTL HTL

Maximum measuring range 33 µApp 1.66 Vpp low: 0 – 2.5 V

high: 2.5 – 7.5 V

low: 0 – 7.5 V

high: 7.5 – 22.5 V

If the EXPERT MODE is active (see section 5) and the 11 µApp or 1Vpp interface board used, the encoder

supply voltage can be set in the mode MEASURE AMPLITUDES:

For this purpose the standard soft-key row has been expanded by the soft key

Soft key to switch to setting of encoder voltage

After pressing the soft key

the encoder voltage can be set:

Soft key to switch back to the standard

soft-key row

Display of encoder voltage

Soft keys to set the encoder voltage

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Heidenhain PWM 8 Manuale Utente Pagina 20