Arrangement And Function Of Control Circuit Terminal Block - Omron RX Series User Manual

2 Design
2-3-3

Arrangement and Function of Control Circuit Terminal Block

The table below shows the arrangement of the control circuit terminal block, and description and
specifications of each terminal.
Control Circuit Terminal Block
FS FE
FC FV FI
Terminal
Analog Frequency reference input
2 - 16
AM MP TH FW
AMI P24 PSC SC
Terminal screw size M3
Terminal Terminal
symbol name
Frequency
reference
FS
power supply
output
Frequency
reference
FV
input (Voltage
reference)
Auxiliary
frequency
FE reference
input (Voltage
reference)
Frequency
reference
FI
input (Current
reference)
Frequency
FC reference
common
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
S8 SC S5 S3
S7 S6 S4 S2
Description
+10 VDC power supply for the terminal
FV.
0 to 10 VDC analog input.
By default, this is set so that the
frequency reaches the maximum at 9.8
V (Adjustable in A012/A014).
This terminal is enabled when
Frequency Reference Selection (A001)
is set to 01 (Terminal).
–10 to 10 VDC analog input.
By default, this is set so that the
frequency reaches the maximum at 9.8
V (Adjustable in A112/A114).
Setting these parameters adds the
terminal FE signal to the frequency
reference signal at the terminal FV or FI.
It is also possible to input the frequency
reference independently to the terminal
FE.
4 to 20 mA analog DC input.
By default, this is set so that the
frequency reaches the maximum at
19.8 mA (Adjustable in A102/A104).
By default, the terminal FI signal is
added to the frequency reference signal
at the terminal FV.
If any of the multi-function input
terminals is set to AT, this terminal is
enabled only when the AT terminal is
ON.
Common terminal for the frequency
setting signals (FV, FE and FI) and the
analog output terminals (AM and AMI).
Do not connect this terminal to the
ground.
S1 P4 P3 P1
P5 PC P2 MC
Specifications
Allowable load current:
20 mA max.
Input impedance: 10 kΩ
Allowable input voltage
range: –0.3 to 12 VDC
Input impedance: 10 kΩ
Allowable input voltage
range: 0 to ±12 VDC
Input impedance: 100 Ω
Max. allowable current:
24 mA
–
MA
MB