External Encoder Specifications - Omron R88D-KN01L-ECT-L User Manual

3 Specifications
Speed Command Status Output (VCMD)
• This output turns ON when the speed command is in the Speed Control Mode.
• The output is always OFF except in the Speed Control Mode.
• With the default settings, the output is not allocated.
Remote Outputs (R-OUT1 and R-OUT2)
• Remote Output 1 (R-OUT1) turns ON and OFF according to the ON/OFF status of bit 16 in the
Digital outputs (60FE hex).
• Remote Output 2 (R-OUT2) turns ON and OFF according to the ON/OFF status of bit 17 in the
Digital outputs (60FE hex).
• With the default settings, the outputs are not allocated.
Magnetic Pole Position Estimation Completion Output (CS-CMP)
• This output turns ON when the magnetic pole position estimation is completed.
• With the default settings, the output is not allocated.

3-1-10 External Encoder Specifications

These are the specifications of the external encoder that can be used in conjunction with the Servo
Drive.
Item
Resolution
Maximum length
*2
Encoder type
Supported encoder speed
External encoder cable
*1 Set the number of pulses per magnetic pole pitch (or one cycle of electrical angle) to at least 2,048 pulses.
*2 OMRON checked the connection of these products in serial communications by using each representative
model. Although the connection is confirmed, it does not mean that the functions and performance are
guaranteed in the resolution, model, and all aspects of an external encoder.
*3 This represents the encoder speed supported on the Servo Drive. Check separately the external encoder
operation manual for its supported speed.
*4 For the external encoder signal cable, use a shielded twisted-pair cable with 0.18 mm
*5 We recommend you to use a 5 V power supply with the double wiring technique to reduce the effects of a
voltage drop if the wiring length is long.
3 - 16
*1
0.001 to 10 [µm/Pulse]
30
Resolution x (2 –1) or less
• Phase A/B, origin signal differential input
• AT573A, ST778A, and ST778AL by Mitutoyo Corporation
• SR75, SR77, SR85, and SR87 by Magnescale Co., Ltd
*3 • Phase A/B type (90° phase difference output)
• Serial communications type
*3
• Cable specifications
• Maximum cable length
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
Specifications
: to 4 Mpps
: to 400 Mpps
: Shielded twisted-pair cable
*3
: 20 m
*4
*5
2
or thicker core wires.