F2: Analog Input - Omron Q2A Series Technical Manual

12.6 F: OPTIONS
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F2: ANALOG INPUT

F2 parameters set the operation of the drive when you use analog input option card AI-A3. The AI-A3 card has 3
input terminals that accept voltages of -10 V to +10 V (20 kΩ) or currents of 4 mA to 20 mA (250 Ω). Install the
AI-A3 card to enable setting very accurate analog references with high resolution.
Refer to the AI-A3 card manual for more information about how to install, wire, and set the AI-A3 card.
WARNING! Sudden Movement Hazard. Do test runs and examine the drive to make sure that command references are
configured correctly. If you set the command reference incorrectly, it can cause death, serious injury, or equipment damage from
unwanted motor rotation.
■
F2-01 An.In Funct.Selection
No.
Name
(Hex.)
F2-01 An.In Funct.Selection
(038F)
Note:
When the AI-A3 card is not mounted in the drive, analog input terminals AI1 to AI3 on the drive are always enabled. The setting of this
parameter does not have an effect.
0 : 3 Independent Channels
Set F2-01 = 0 to increase the precision of A/D conversion when you use the functions for terminals AI1 to AI3 on
the drive as they are. You can input the MFAI signal from terminals V1 through V3 for AI-A3. The functions for
terminals AI1, AI2, and AI3 on the drive are sent to terminals V1, V2, and V3 for AI-A3. Use gain and bias
adjustment when you input current to set signals to have negative numbers.
Note:
• Set b1-01 = 1 [Freq. Ref. Sel. 1 = Analog Input] to set inputs individually.
• If F2-01 = 0 and b1-01 = 3 [Option PCB], the drive will detect oPE05 [Run Cmd/Freq Ref Source Sel Err].
Figure 12.70 shows the individual input of analog inputs. H3-xx parameters set the function to input the analog
reference received from the AI-A3 card and to adjust the gain and bias of these signals.
1 : 3 Channels Added Together
Set b1-01 = 3 [Option PCB] to set addition input.
You can input the frequency reference directly. The sum value when you add the input from terminals V1 to V3
becomes the frequency reference.
Set F2-01 = 1 to use the AI-A3 card as addition input.
Figure 12.71 shows addition input. Use F2-02 [An.In Option Gain] and F2-03 [An.In Option Bias] to adjust the
analog reference gain and bias for addition input.
636
V/f CL-V/f OLV
Sets the input method for the analog reference used with AI-A3.
Figure 12.70 Analog Input Reference Individual Input Block Diagram
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
Default
(Range)
0
(0, 1)