User manual

Analog value comparator/threshold value
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Example: Function of the Greater than comparison
Parameter display and parameter set for Greater than analog
value comparator.
Circuit diagram with analog value comparator.
Figure 53: Signal diagram of analog value comparator in Greater
than mode
1: actual value at I7
2: setpoint plus hysteresis value
3: setpoint
4: setpoint minus hysteresis
The make contact switches if the actual value at I7 reaches
the setpoint. The make contact switches off when the actual
value at I7 falls below the setpoint minus hysteresis.
A4 GT +
I1 I7 Æ
F1 +0
I2 0100 æ
F2 +0
OS +0
HY 0025
A4-------ÄQ1
J
The values F1 +0, F2 +0 and OS +0 were not defined.
No values are used with a gain factor, and no offset is used.
on
off
1
2
3
4
EZ500_700.book Page 111 Tuesday, May 3, 2005 5:15 PM