User manual

Analog value comparator/threshold value
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Circuit diagram with analog value comparator.
Figure 49: Signal diagram of analog value comparator in Less than
mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches off when the actual value at I7
exceeds the setpoint plus hysteresis. If the actual value at I7
falls below the setpoint, the make contact switches on.
Function of the Less than/equal to comparison
Parameter display and parameter set for Less than and equal
to analog value comparator.
A1-------ÄQ1
J
The values F1 +0, F2 +0 and OS +0 were not defined.
A gain is not used with any values. No offset is used.
on
off
1
2
3
4
A2 LE +
I1 I7 Æ
F1 +0
I2 0100 æ
F2 +0
OS +0
HY 0025
EZ500_700.book Page 107 Tuesday, May 3, 2005 5:15 PM