Main Circuit Terminals; Control Circuit Terminal - Omron 3G3RX User Manual

 Main Circuit Terminals
Terminal symbol
R/L1, S/L2,
T/L3
U/T1,V/T2,
W/T3
PD/+1, P/+
P/+, RB
P/+, N/-
G
 Control Circuit Terminal
Terminal
Terminal name
symbol
H Frequency reference
power supply output
O Frequency reference
input
(Voltage)
O2 Auxiliary frequency
reference input
(Voltage)
OI Frequency reference
input
(Current)
L Frequency reference
common
Terminal name
Main power supply input Connect the input power supply.
terminal
Inverter output terminal Connect to the 3-phase motor.
External DC reactor Remove the short-circuit bar between terminals "PD/+1"
terminal and "P/+", and connect the optional power factor
improvement DC reactor.
Braking resistor Connect optional external braking resistors. (The RB
connection terminals terminal is provided for the Inverters with 22 kW or lower
capacity.)
Regenerative braking Connect optional regenerative braking units.
unit connection terminal
Ground terminal Inverter case ground terminal. Connect this terminal to the
ground.
type-D (200-V class), type-C (400-V class)
+10 V DC power supply for the O terminal.
With a 0 to 10 V DC voltage input, the
frequency reaches the maximum at 10 V.
Set at A014 if the maximum frequency
needs to be achieved at lower than 10 V.
With a 0 to ±10 V DC voltage input, the O2
signal is added to the frequency reference
signal of the O or OI terminal. By changing
the setting, the frequency reference can be
input even with the O2 terminal
independently.
With a 4 to 20 mA DC current input, the
maximum frequency is set at 20 mA. The OI
signal is only active when the AT terminal is
ON. Allocate the AT function to the multi-
function input terminal.
Common terminal for the frequency setting
signals (O, O2 and OI) and the analog output
terminals (AM and AMI). Do not connect this
terminal to the ground.
Description
Description
Continued to the next page
2-2 Wiring
Specifications
Allowable load current:
20 mA max.
Input impedance 10 k
Allowable input voltage
range:
-0.3 to +12 V DC
Input impedance 10 k
Allowable input voltage
range:
0 to ±12 V DC
Input impedance 100 
Allowable max. current:
24 mA
2-6
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