Rockwell Automation 2098-IPD-xxx Ultra5000 Intelligent Positioning Drives Installation Manual - Manual (Page 59)

Publication 2098-IN001E-EN-P — April 2002
Ultra5000 Connector Information 2-33
The following table provides a description of the auxiliary encoder
interface.
Parameter Description Minimum Maximum
ON State
Input Voltage
Input voltage difference between the +
input and the - input that is detected as
an ON state. +1.0V +7.0V
OFF State
Input Voltage
Input voltage difference between the +
input and the - input that is detected as
an OFF state. -1.0V -7.0V
Common Mode
Input Voltage
Potential difference between an encoder
signal and logic ground. -7.0V +12.0V
DC Current Draw Current draw into the + and - input. -5mA 5mA
Signal Frequency Frequency of the AX or BX signal inputs.
Count frequency is 4 times this
frequency for A/B/I type inputs. — 2.5 MHz
IX Pulse Width,
A/B/I Mode Pulse width of the index input signal.
Since the index is active for a
percentage of a revolution, the speed
will determine the pulse width. 125 nS —
AX / BX Phase
Error, 2.5 MHz Line
Frequency, A/B/I
Mode Amount that the phase relationship
between the AM and BM inputs can
deviate from the nominal 90°. -22.5° +22.5°
AX / BX Phase
Error, 1 MHz Line
Frequency, A/B/I
Mode Amount that the phase relationship
between the AM and BM inputs can
deviate from the nominal 90°. -45° +45°