Omron RX Series - Overview of

6 Vector Control
6 - 16
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
The PG Board 3G3AX-PG01 enables the inverter capture the feedback signal from an encoder.
In addition, the use of the PG Board enables the following controls.
• Sensor vector control
• Pulse train frequency input (Frequency Reference Selection (A001) = 06)
The PG Board has the following functions.
• Encoder feedback pulse input
• Pulse train command input (Frequency reference or Position command)
• Encoder feedback pulse output
To confirm that the encoder is wired correctly, once set the 1st Control Method (A044) to 00 (Constant
torque characteristics), start inverter operation, and check the rotation direction in the Real Frequency
Monitor (d008).
The encoder is wired correctly if the monitor displays a positive value for the Forward command and a
negative value the Reverse command.
Additional Information
• The inverter supports line driver encoders only. Open collector type encoders are not
supported.
• The PG Board (Model: 3G3AX-PG01) has a built-in power supply for encoder use.
Power supply specifications: +5 VDC, 150 mA maximum.
6-3-2 Overview of PG Board
FS
FV
FC
Inverter control terminal
Available to allocate to
multi-function input
terminals 1 to 8
EP5
5 VDC
EG5
EAP
EAN
EBP
EBN
EZP
EZN
M
PG
Motor with an
encoder
SAP
SAN
SBP
SBN
Pulse train position
command
POK
ZS
DSE
Output
terminal
FW
RV
LAC
PCLR
(Position deviation clear)
ORT
CM1
Input
terminal
AP
AN
BP
BN
Encoder signal
output
STAT
Encoder signal
TM1
Photocoupler
Photocoupler
Photocoupler
Reciever IC
TM2
(LAD cancel)
(Orientation)
(Pulse train position
command permission)
Available to allocate to
multi-function
output terminals
1 to 5
(Position ready)
(0 Hz signal)
(Excessive speed
deviation)
PG board
Reciever IC
Driver IC
Driver IC