Omron R88D-KN series User Manual page 283

External Feedback Pulse Type Selection
3323 hex
Setting range 0 to 2
Size 2 bytes (INT16)
• Select the type of the external encoder to be used.
• For the set value, refer to the external encoder specifications.
Explanation of Settings
Set value
0
90 phase difference output type
1 Serial communications type
(Incremental type)
2 Serial communications type
(Absolute type)
*1 The supported speed is the internal feedback pulse speed [external encoder pulses/s] of the external encoder
that can be processed by the Servo Drive.
Check the instruction manual of the external encoder for the speed range supported by your external encoder.
For example, the maximum speed of a serial communications external encoder with a resolution of 0.01 µm is
4 m/s.
When a serial communications type encoder is used for speed of 5 m/s, choose a serial external encoder with
a resolution of 0.0125 µm or lower.
*2 These are the directions that the Drive counts a 90 phase difference output.
Count-down direction
EXA
EXB
EXB is 90° ahead of EXA.
t1 > 0.25 μs
t2 > 1.0 μs
Precautions for Correct Use Precautions for Correct Use
• If you set this object to 1 or 2 when an external encoder with a 90° phase difference output is
connected, an External Encoder Connection Error (Error No. 50.0) will occur.
• If you set this object to 0 when a serial communications external encoder is connected, a
Phase-A Connection Error (Error No. 55.0), Phase-B Connection Error (Error No. 55.1), or
Phase-Z Connection Error (Error No. 55.2) will occur.
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Unit
Access
Description
0.01 [μm/pulse] × 400 [Mpulse/s] = 4 [m/s]
t1
t2
9 Servo Parameter Objects

Default setting
RW
0 to 4 Mpps (Multiplication  4)
*2
0 to 400 Mpps
0 to 400 Mpps
Count-up direction
t1
EXA
EXB
t2
EXB is 90° behind EXA.
t1 > 0.25 μs
t2 > 1.0 μs
csp pp hm
0 Data attribute
PDO map Not possible.
*1
Supported speed
R
9
9-25