Electronic Gear Function - Omron RX Series User Manual

6 Vector Control
• Mode 2: Forward/pulse train + Reverse pulse train
(Forward pulse train input)
(Reverse pulse train input)
Detected
pulses
Note 1 To input a forward or reverse pulse train, the other pulse train input must be kept in a High state. When the
other pulse train input in a Low state, pulse train input will not be recognized because it is judged as
disconnected.
2 With the Position Control Unit (Model: CJ1W-NC3/CS1W-NC3), the inverter cannot establish
connection in Mode 2.
6-6-2

Electronic Gear Function

Use this function to set the gain for the position command or position feedback side. You can adjust the
main/sub motor rotation ratio, particularly for synchronous operation.
Parameter No.
P019
P020
P021
P022
P023
*1. Be sure to set the numerator and the denominator so that the following condition is met: 1/50 ≤ N/D ≤ 20.
N: Electronic Gear Ratio Numerator (P020), D: Electronic Gear Ratio Denominator (P021)
*2. It is recommended to start position control feedforward gain adjustment with P022 set to 2.00. To reduce the
position deviation between the main and sub motors, increase the feedforward gain. If motor hunting occurs,
reduce the feedforward gain.
*3. It is recommended to start position loop gain adjustment with P023 set to 2.00. To increase the positioning
accuracy and the holding power, increase the position loop gain. If the position loop gain is set too high and
causes hunting, decrease the position loop gain.
6 - 36
SAP
SAN
SBP
SBN
Function name
Electronic Gear Position
Selection
Electronic Gear Ratio
*1
Numerator
Electronic Gear Ratio
*1
Denominator
Position Control Feed
*2
forward Gain
*3
Position Loop Gain
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
Forward
Data
00: FB (Feedback side)
01: REF (Command side)
1. to 9999.
1. to 9999.
0.00 to 99.99, 100.0 to 655.3
0.00 to 99.99, 100.0
Reverse
Time
Default data
00
1.
1.
0.00
0.50
Unit
–
–
–
–
rad/s