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4 Wiring with
4.4 Analog value comparator/threshold value switch
92
Operating instructions
05/10 MN05013003Z-EN
www.eaton.com
4.4.5.6 Example: Analog value comparator as two-step controller
If, for example, the temperature goes below a value, A1 switches on the
output Q5 with the enable input I1. If the temperature exceeds the set value,
A2 will switch off. If there is no enable signal, output Q1 will always be
switched off by I5.
Parameter settings of both analog value comparators:
A simple circuit can be implemented if a switching point of the controller is
assigned to the digital switching point of the analog input. This switching
point has a 8 V DC (easy-DA, easy-DC) and 9.5 V (easy-AB) signal.
Parameter settings:
I5
u
A1----SQ1
h
A2
u
---RQ1
I
5---
k
Switch-on
Switch-off
A1 LT
+
I1
I7
Æ
F1
+0
I2 0500
æ
F2 +0
OS +0
HY +0
A2 GT
+
I1
I7
Æ
F1
+0
I2 0550
æ
F2 +0
OS +0
HY
0015
I5
u
A1----SQ1
h
I7
u
---RQ1
I
5---
k
Switch-on
Switch-off
The switch point is
implemented via I7 (digital
switching signal).
A1 LT
+
I1
I7
Æ
F1
+0
I2 0500
æ
F2 +0
OS +0
HY +0
Summary of Contents for easy500, easy700
Page 4: ...II...
Page 28: ...1 1 5 operating principles 24 Operating instructions 05 10 MN05013003Z EN www eaton com...
Page 210: ...7 What Happens If 7 3 Event 206 Operating instructions 05 10 MN05013003Z EN www eaton com...
Page 234: ...9 Glossary of terms 230 Operating instructions 05 10 MN05013003Z EN www eaton com...