Omron SYSDRIVE MX2 SERIES - Analog Signal Functions

5-37
5-4 Analog Signal
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
5-4 Analog Signal
The following explains the Inverter's analog input/output signals.
Analog Input (FV, FI)
The Inverter has 2 types of external analog input terminals.
FV-SC terminal: 0 to 10 V
Variable Resistor (volumes) inputs are also recognized as voltage inputs in the context of
Inverter signals.
FI-SC terminal: 0 to 20 mA
If the current is 4 to 20 mA, set A103 to 20%.
The following functions can be allocated to analog input signals. The required settings are as
follows.
Parameter
No.
Setting item Function name Data
Default
setting
Unit
A001
Frequency
Reference
*1
Frequency
Reference Selection
1
01: Digital Operator
(volume) 02 −
A071
PID Feedback
Selection
*2
PID Selection
01: Enabled
02: Reverse output
enabled
00 −
A076
PID Feedback
Selection
00: Current (FI)
01: Voltage (FV)
00 −
A071
PID Feedforward
Selection
*3
PID Selection
01: Enabled
02: Reverse output
enabled
00 −
A079
PID Feedforward
Selection
01: FV (vortage)
02: FI (current)
00 −
b040
Torque Limit
Selection
*4
Torque Limit
Selection
02: Analog voltage input
00 −
P033
Torque Control
Torque Reference
Input Selection
00: Terminal FV
10 V = 200%
00 −
01: Terminal FI
20 mA = 200%
C001 to
C007
Multi-function Input
Selection
52: ATR
(Torque reference input
permission)
−−
*1.Switch among the volume, current and voltage using FV/FI Selection (A005). Volume (VR) on the
external Digital Operator 3G3AX-OP01.
*2.If Frequency Reference is set to Control circuit terminal block (A001 = 01) and PID Selection (A071) is
enabled, PID is given priority and the analog input specified by A076 is allocated for PID feedback.
Regardless of A005 or the FV/FI terminal status, the analog input not selected by A076 is allocated to
Frequency Reference.
*3.Even when the specified analog input is overlapping with the target value or feedback value, the setting
of A079 is applied as is.
*4.Only the analog voltage 10 V = 200% of the torque limit value. The FV/FI terminal is not allocated.