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2 Design
High-function General-purpose Inverter RX2 Series User’s Manual
2-3 Wiring
2
2-3-6 Wiring for PG Option Unit
To use PG vector control with this inverter, you need to mount and wire the PG Option Unit
3G3AX-RX2-PG01. Then, install a detector (encoder) to the motor rotating shaft and wire it to the PG
Option Unit. For the detector (encoder), use a line-driver output type encoder. This is required for PG
vector control, position control, or torque control operation.
2-3-6 Wiring for PG Option Unit
Terminal Functions
Terminal name
Terminal
symbol
Electric specifications
Functions Common
terminal
Input terminal
Pulse train
position
command
input
SAP
SAN
SBP
SBN
RSA
RSB
• Pulse train input procedure
MD0: 90º phase difference pulse
MD1: Forward/Reverse signal, pulse
train
MD2: Forward pulse/Reverse pulse
Mode settings is made in the pulse train
mode selection (ob-11).
• RSA: Termination resistor ON/OFF ter-
minal between SAP and SAN
• RSB: Termination resistor ON/OFF ter-
minal between SBP and SBN
• Termination resistor settings Built-in ter-
mination resistor: 150 Ω, switch
between enabled and disabled with the
wiring
RSA, RSB terminals released: Built-in
termination resistor disabled
RSA-SAN short-circuit, RSB-SBN
short-circuit: Built-in termination resis-
tor enabled
5V DC receiver input
(RS-422 compliance)
Encoder
signal input
EAP
EAN
EBP
EBN
EZP
EZN
A, B, Z: Rotary encoder signal input Photo coupler input
(Corresponds to the 5V DC line
driver output type rotary encoder)
Output terminal
Encoder
signal output
AP
AN
BP
BN
ZP
ZN
Output the encoder signal input.
(Pulse ratio 1 : 1)
5V DC line driver output
(RS-422 compliance)
Power supply
for encoder
EP5 +5V DC power supply
EG
Total supply capacity of EP5 and
EP12
(250 mA max.)
EP12
+12V DC power supply
Functional
Grounding terminal
FG Connect to the Functional Grounding connection.
(Screw size: M3)
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