Omron R88D-1SN ECT Series User Manual

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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

Omron R88D-1SN ECT Series Specifications

General

Feedback	Incremental encoder, Absolute encoder
Position Control	Yes
Speed Control	Yes
Torque Control	Yes
Communication Interface	EtherCAT
Power Supply Voltage	200 to 240 VAC
Output Power	0.1 to 1.5 kW
Input Voltage Range	170 to 264 VAC
Control Method	Sine-wave PWM control
Main Circuit Power Supply	200-240 VAC
Applicable Motor Capacity	0.1 to 1.5 kW
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Encoder Error
Ambient Operating Temperature	0 to 55°C
Vibration Resistance	4.9 m/s² (10 to 55 Hz)
Shock Resistance	98 m/s2
Weight	Varies by model