Eaton ELCM Series, Руководство по эксплуатации

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3. AIAO Units
MN05003006E F or more information visit:
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1-89
(19,200).
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M0 = On: Disable changing configuration parameters for CH2.
3. Program description
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When X0 = On, write K1 (H’0001) to CR#3, which sets CH2 to mode 1 (voltage input
mode).
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When X1 = On, write K6,400 (Offset value for CH2) into CR#29 and K19,200 (Gain
value of CH2) into CR#35.
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When X1 goes from On to Off, set M0 = On to disable modifications to the A/D
conversion curve. Write K2 (H’2) into CR#40 b1=1 to disable CH2 configuration
changes.
4. Program example
Ladder diagram:
Explanation:
Set CH2 to mode 1
(voltage input mode)
Set the Offset value for
CH2
Set the Gain value for
CH2
Disable CH2 configuration
changes
X0
M0
X1
K0 K35 K1
K0 K40
K1
K0 K1 TOP
K0 K1
M0
TOP
TOP
TOP
X1
SET
H1
K6400
K19200
H2
K3
K29
„
Adjusting A/D Conversion Curve in Current Input Mode 4, Mode 5 and Mode 6
1. Description
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CH3 example. When CR#4 is set to current input mode (mode 4), the Offset value
will be set to 0mA (0) and the Gain value to 10mA (10mA/0.625 μ A=16,000), i.e. input
current -20mA ~ +20mA will correspond to values -32,000 ~ +32,000.
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When CR#4 is set to current input mode (mode 5), the Offset value will be set to 0mA
(0) and the Gain value to 10mA (10mA/0.625 μ A=16,000), i.e. input current 0mA ~
+20mA will correspond to values 0 ~ +32,000.
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When CR#4 is set to current input mode (mode 6), the Offset value will be set to 4mA
(4mA/0.625 μ A=6,400) and the Gain value to 12mA (12mA/0.625 μ A=19,200), i.e.
input current 4mA ~ +20mA will correspond to values 0 ~ +32,000.
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If the default current input mode (mode 4 ~ mode 6) does not meet the application
requirements, make adjustments to the A/D conversion curve. For example, set the
Offset for CH3 to 8mA (8mA/0.625 μ A=12,800) and the Gain to 14mA