Omron SYSDRIVE RX Series User Manual page 235

Example: Synchronous Operation
Master Inverter
Main
M
motor
EC
For the Inverter (master Inverter) on the main motor side, you can select either the speed control or
pulse train position control mode.
For the Inverter (slave Inverter) on the sub motor side, you need to select the pulse train position
control mode.
Configuration Example
•Main motor : Number of encoder pulses = 1024
•Sub motor : Number of encoder pulses = 3000
•Main motor rpm:Sub motor rpm = 2:1
For operation under the above conditions, set the following data in the slave Inverter.
Pulse train mode selection (P013)
Electronic gear setting position selection (P019) : 01 (REF)
Electronic gear ratio numerator (P020)
Electronic gear ratio denominator (P021)
The following shows an example of the ratio of slave rpm to master rpm depending on the P019 to
P021 settings.
(Note that the same number of encoder pulses (1024 pulses) should be set on both Inverters.)
Electronic gear setting
position selection
(P019) command side)
Electronic gear ratio
numerator (P020)
Electronic gear ratio
denominator (P021)
Slave rpm/Master rpm
4-3 Functions When Option PG Board (3G3AX-PG01) Is Used
AP, BP
AN, BN
EG5
EAP, EBP
EAN, EBN
REF REF
(Position (Position
command side)
1024 2048
2048 1024
1/2 2
Slave Inverter
SAP, SBP
SAN, SBN
EG5
Sub
M
motor
EC
: 00 (pulse with 90° phase difference)
: 3000
: 1024 × 2 = 2048
FB
(Position feedback side) (Position feedback side)
1024
2048
2
EAP, EBP
EAN, EBN
FB
2048
1024
1/2
4-126
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