Analog Control Objects - Omron OMNUC G5 Series User Manual

9-4 Analog Control Objects

9-4 Analog Control Objects

External Feedback Pulse Type Selection
3323 hex
Setting
range
Size
Select the external encoder type. Be sure that the setting conforms to the external encoder which
is actually used.
Refer to 6-6 Fully-closed Control on page 6-12.
Explanation of Set Values
value
*1. The maximum input frequency is the feedback speed [pps] of the external encoder that can be
*2. These are the directions that the Drive counts a 90° phase difference output.
9
*3 For the external encoder connection direction, set the direction so that count-up occurs when the motor
If 3000 hex = 1, the encoder count direction will be opposite to the count direction used for
monitoring the total external encoder feedback pulses.
If 3000 hex = 0, the count direction matches the count direction for monitoring.
Even when the speed command is within the Drive's speed command range, an acceleration error
will occur if the speed command exceeds the maximum speed of motor shaft rotation.
9-21
0 to 2 Unit
2 bytes (INT16)
Set
Description
0
90° phase difference output type
Serial communications type
1
(Incremental encoder specifications)
Serial communications type
2
(Absolute encoder specifications)
processed by the Drive. Check the instruction manual of the external encoder for the maximum output
frequency of the external encoder.
Count-down direction
t1
EXA
EXB
t2
EXB is 90° ahead of EXA.
t1 > 0.25 µs
t2 > 1.0 µs
shaft is rotating in the CCW direction, and count-down occurs when the motor shaft is rotating in the CW
direction. If the connection direction cannot be selected due to installation conditions, the count direction
can be reversed using External Feedback Pulse Direction Switching (3326 hex).
Precautions for Correct Use
OMNUC G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
Default
−
setting
Access RW
Maximum input frequency
*2*3
0 to 4 Mpps (Multiplication × 4)
0 to 400 Mpps
0 to 400 Mpps
Count-up direction
EXA
EXB
t2
EXB is 90° behind EXA.
t1 > 0.25 µs
t2 > 1.0 µs
csp full
Data
0 R
attribute
PDO map Not possible.
*1
t1