Inovance MD500T75G - Page 121

MD500 User Manual 7. Description of Parameters
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Example 2: On the condition that the analog input from AI2 is current, if the input is 0 to 20 mA, it corresponds to voltage input of 0
to 10 V. If the input is 4 to 20 mA, it corresponds to 2 to 10 V.
To make the current input at AI2 to control the frequency reference and correspond 4 to 20 mA to 0 to 50 Hz, the settings are shown
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Figure 7-17 Current input at AI2 to control the frequency reference
Note:
4 to 20 mA corresponds to 0.0% to 100.0%.
100.0% corresponds to max. frequency (F0-10 = 50.00 Hz).
AI2
F4-33
(Ten's digit) = 2
F0-03
Select two-point
curve 2 for AI2
GND
F4-18
F4-
Setting
20.0%
2.00
F4-20
F4-21
10.00
80.0%
F4-22 0.10
Final
frequency
reference
Select main frequency
reference as final
frequency reference.
Function
Code
AI (mA)
20.016.012.0
8.0
4.0
100.0
0
80.0
60.0
40.0
20.0
0.0
F4-
F4-21
F4-18
F4-20
Corresponding
percentage (%)
PLC
4DA
module
GND
AO
0 to 10 V
J8
4 to 20 mA
F0-03 = 3
Select AI2 as main
frequency reference
setting channel.
F0-07
(Unit's digit) = 0
Example 3: To make the voltage input at AI3 to control the frequency reference and correspond 2 to 10 V to 10 to 50 Hz, the settings
DUHVKRZQLQWKHIROORZLQJÀJXUH
Figure 7-18 Voltage input at AI3 to control the frequency reference
Note:
2 to 10 V corresponds to 20.0% to 100.0%.
100.0% corresponds to max. frequency (F0-10 = 50.00 Hz).
AI3
F4-33
(Hundred's
digit) = 1
Select two-point
curve 3 for AI3
-10 to 10 V
+10V
GND
Pot.
(2 kȎ)
F4-23
F4-24
Setting
20.0%
2.00
F4-25
F4-26
10.00
100.0%
F4-27 0.10
AI (V)
80.0
60.0
40.0
20.0
0.00
2.00 4.00 6.00 8.00 10.00
F4-24
0.0
F4-23 F4-25
F4-26
percentage (%)
Corresponding
Final
frequency
reference
Select main frequency
reference as final
frequency reference.
Function
Code
Select AI3 as main
frequency reference
setting channel.
F0-03 = 4
F0-07
(Unit's digit) = 0
100.0
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