4 specifications of 11µapp interface board, 5 specifications of 1vpp interface board – HEIDENHAIN PWM 8 User Manual

Page 40

8.4 Specifications of 11µApp Interface Board

Signal amplification (Ie1, Ie2, Ie0):

300

Input amplifier:
Maximum signal current:

Ie0, Ie1, Ie2: 66 µApp

Maximum frequency at encoder input:
-3

dB:

approx.

300

kHz

Note:
The maximum input frequency only stands for the cutoff frequency of current/voltage converter in PWM 8
(signal source: frequency generator). In real operation with encoders the frequency highly depends on the
photocells and their capacitance, as well as on the cable lengths.

Measure current/voltage:
Measuring range

current:

0 - 500 mA

Measuring range

voltage:

0 - 10 V

Tolerance:

3 %

Measure amplitudes:
Measuring range:

2 µApp - 33.3 µApp (0.6 - 10 Vpp)

Measuring frequency:

10 Hz - 50 kHz

Tolerance:
without adjustment via software:

5 %

with adjustment via software:

3 %

Fault detection signal:

Ie1 and Ie2 < 4 µApp

Encoder output:
Output

signal:

input

signal

without U

8.5 Specifications of 1Vpp Interface Board

Input amplifier:
Maximum signal voltage:

5 Vpp

Maximum frequency at encoder input:
for encoder voltage on interface board:

approx. 500 kHz

for signals on BNC sockets (- 3dB):

approx. 1 MHz

Note:
Input frequencies over 1 MHz are possible; however, the tolerance of the PHA/TV display can no longer be
guaranteed!
The maximum input frequency only stands for the cutoff frequency of the voltage input of PWM 8 (signal
source: frequency generator). In real operation with encoders the frequency highly depends on the encoder
and on the cable lengths.

Measure current/voltage
Measuring range