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7 Applied Functions
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
7-12 Encoder Dividing Pulse Output Function
7
7-12 Encoder Dividing Pulse Output Func-
tion
The Encoder Dividing Pulse Output Function outputs the position information obtained from the
encoder in the form of two-phase pulses (phase A and B) with a 90° phase difference. This function
also supports Z-phase outputs.
The following figure shows the waveforms of two-phase pulse outputs with 90° phase difference.
The maximum pulse output frequency is 4 Mpps.
The following figure shows the pulses that are output when the power is turned ON.
Pulse Output Waveform
Pulse Output at Power ON
Phase A
Phase B
t2
t1 > 0.25 µs
t2 > 1.0 µs
t1 t1 t1 t1
Phase B
Phase A
Phase Z
Pulse output initial
processing time
3 s max.
Not determined
Not determined
Not determined
Control power ON
The phase status of the present
encoder position is applied.
Phase A output
Phase B output
Phase Z output
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