Limitations; Encoder; Max Input Frequency; Max No. Of Lines - Emerson SI-Universal User Manual

Figure 3-4 Example of encoder feedback signals (6 pole commutation signals)
Index
alignment
reference
Type
Incremental plus
commutation

* Max input frequency = LPR x max rpm / 60

NOTE
The maximum speed in rpm which an encoder connected to the SI-Universal Encoder option module
can reach, can be calculated from:

Max rpm = (60 x Max input frequency) / Encoder LPR

e.g. For a 4096 line encoder the maximum rpm would be:
3
(60 x 500 x 10 ) / 4096 = 7324 rpm
SI-Universal Encoder User Guide
Issue: 2
360 electrical degrees (encoder) °
90 separation of A and B °
min max
1
/
3
1
/
2
2
/
3
1
Mechanical revolution / pole pairs

Limitations

Encoder

AB Servo
FD Servo
FR Servo

See Table 3-2 Interpolated information

SC Servo based on frequency and voltage
A
/A
B
/B
Z
/Z
U
V
W

Max Input Frequency

500 kHz*
level on page 11
Incremental
signals
Marker
signals
Commutation
signals

Max no. of Lines

(LPR)
100,000
13