Pwm 8 Mode: Measure Amplitudes - HEIDENHAIN PWM 8 Operating Instructions Manual

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
and high level are measured versus 0V.
In the table below the maximum measuring ranges are listed for the different interface boards:
Interface board:
Maximum measuring range
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
After pressing the soft key
, with square-wave encoder signals (TTL and HTL) low
0
11µApp 1Vpp
33 µApp 1.66 Vpp
Soft key to switch to setting of encoder voltage
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
- 20 -
TTL
low: 0 – 2.5 V
high: 2.5 – 7.5 V
.
HTL
low: 0 – 7.5 V
high: 7.5 – 22.5 V