Omron SYSDRIVE 3G3MV-A2001, User Manual

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5-16
H
Adjusting Multi-function Analog Input
D
Setting the Gain and Bias of Multi-function Analog Voltage/Current Input (n068 to
n072)
•
Set the multi-function analog voltage input characteristics in n068 (multi-function analog voltage input
gain) and n069 (multi-function analog voltage input bias). Set the multi-function analog current input
characteristics in n071 (multi-function analog current input gain) and n072 (multi-function analog cur-
rent input bias).
•
When the gain is a positive value (>0), the reference value
from the multi-function analog input is calculated by the Inverter as follows:
Reference value = (Analog input (%) + Bias)
⎟
Gain
⎟
•
When the gain is a negative value (<0), the reference value from the multi-function analog input is
calculated in the same way as follows:
Reference value = (100 – (Analog input (%) + Bias)
⎟
Gain
⎟
Note 1. The analog input as a percentage is 100% at 10 V or 20 mA.
Note 2. When the reference value is used as the frequency (n004 = 7 or 8, or n077 = 1), the frequency
is calculated as a multiple of the maximum frequency (n011).
Note 3. The calculation method is different from that for the frequency reference input (FR terminal).
Note 4. A negative reference value may result depending on the bias setting, but the minimum refer-
ence value is 0.
n068
Multi-function Analog Voltage
Input Gain Register 0144 Hex Changes during
operation Yes
Setting
range –255(%) to 255(%)
(Max. frequency: 100%) Unit of
setting 1% Default setting 100
n069
Multi-function Analog Voltage
Input Bias Register 0145 Hex Changes during
operation Yes
Setting
range –100(%) to 100(%)
(Max. frequency: 100%) Unit of
setting 1% Default setting 0
n071
Multi-function Analog Current
Input Gain Register 0147 Hex Changes during
operation Yes
Setting
range –255(%) to 255(%)
(Max. frequency: 100%) Unit of
setting 1% Default setting 100
n072
Multi-function Analog Current
Input Bias Register 0148 Hex Changes during
operation Yes
Setting
range –100(%) to 100(%)
(Max. frequency: 100%) Unit of
setting 1% Default setting 0
Basic Operation
Chapter 5