Eaton easy500, easy700

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:
I5uA1----SQ1
hA2u---RQ1
I5---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
I5uA1----SQ1
hI7u---RQ1
I5---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