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6. Function blocks
6.1 Manufacturer function blocks
Other
Signal diagrams
Figure 137: Analog comparator signal diagram
Legend for Figure
1: Actual value at I1
2: Setpoint value on I2
3: Hysteresis on HY
4: Switching contact Q1 (N/O contact)
5: Offset for value I1
6: Actual value plus offset
• Range A: Compare I1 greater than I2
– The actual value I1 increases.
– The contact switches when the actual reaches the setpoint value.
– The actual value changes and falls below the value of the setpoint value minus the hysteresis.
– The contact goes to the normal position.
• Range B: Compare I1 less than I2
– The actual value drops.
– The contact switches if the actual value reaches the setpoint value.
– The actual value changes and rises above the value of the setpoint value plus hysteresis.
– The contact goes to the normal position.
• Range C: Compare I1 with Offset greater than I2
– This example behaves as described in Range A. The offset value is added to the actual value.
– Compare I1 equal to I2 The contact switches on.
– If I1 is equal to I2, i.e., if the actual value is equal to the reference value: The contact will switch off.
– If the hysteresis limit is exceeded with the actual value rising.
– If the hysteresis limit is undershot with the actual value decreasing.
• Range D: I1 with offset leaves the permissible value range. The contact CY closes. CY opens as soon
as I1 with offset is once more within the value range.
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easyE4
11/18 MN050009 EN www.eaton.com
Содержание easyE4 series
Страница 1: ...Manual 11 18 MN050009 EN easyE4 Manual...
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Страница 22: ...0 1 About this manual 18 easyE4 11 18 MN050009 EN www eaton com...
Страница 40: ...1 easyE4 control relays description 1 10 Safety regulations 36 easyE4 11 18 MN050009 EN www eaton com...
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Страница 462: ...6 Function blocks 6 4 Timing and counter relay example 458 easyE4 11 18 MN050009 EN www eaton com...
Страница 490: ...7 System settings 7 16 Time and Date setting 486 easyE4 11 18 MN050009 EN www eaton com...
Страница 520: ...9 easyE4 inside 9 7 NET network 516 easyE4 11 18 MN050009 EN www eaton com...
Страница 524: ...10 Diagnostics messages of the operating system 10 2 Diagnostics buffer 520 easyE4 11 18 MN050009 EN www eaton com...
Страница 570: ...11 Connection to other devices 11 6 E mail function 566 easyE4 11 18 MN050009 EN www eaton com...
Страница 578: ...12 Faults 12 4 Functionality of the NET faulty 574 easyE4 11 18 MN050009 EN www eaton com...
Страница 582: ...13 Maintenance 13 3 Storage transport and disposal 578 easyE4 11 18 MN050009 EN www eaton com...
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