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Using Intelligent Input Terminals
Operations
and Monitoring
4–36
The figure below shows the operation during an overload restriction event. The overload
restriction level is set by B022 and B025. The overload restriction constant is the time to decel-
erate to 0Hz from maximum frequency. When this function operates, the acceleration time will
be longer than the normal acceleration time.
NOTE: The Overload Advance Notice function for intelligent outputs is related to Overload
Restriction operation, discussed in “Overload Advance Notice Signal” on page 4–46.
Overload
restriction level
Maximum
frequency
Output
frequency
Target frequency
Deceleration rate at overload restriction
Deceleration rate
at overload restriction
A004
F001
B022 / B025
B023 / B026
B022 / B025
t