Eaton IQ 150S, User & Installation Manual

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IM02601006E www.eaton.com 5-31
IQ 150S/250S 5: Communication
Examples:
Above Setpoint = 110%; Below Setpoint = 90%
(Out of Limit above 132V);(Out of Limit below 108V)
Above Return Hysteresis = 105%; Below Return Hysteresis = 95%
(Stay out of Limit until below 126V)(Stay out of Limit until above 114V)
NOTES:
• The Primary fields are display only. They show what the set point and return
Hysteresis value are for each limit.
• If the Above Return Hysteresis is greater than the Above Set Point, the Above Limit is Disabled;
if the Below Return Hysteresis is less than the Below Set Point, the Below Limit is Disabled. You
may want to use this feature to disable either the Above Limit or Below Limit condition for a
reading.
• If you are entering negative limits, be aware that the negative value affects the way the above
and below limits function, since negative numbers are processed as signed values.
TIME
Above Limit
condition
Below Limit
condition
Above Limit Trigger point
Return point from Above Limit condition
Below Limit Trigger point
Return point from Below Limit condition
HYSTERESIS
HYSTERESIS
-
MEASURED VALUE
(if applicable)
+
MEASURED VALUE
0