Hitachi SJ300 Series Instruction Manual page 174

4–36
Using Intelligent Input Terminals
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.
Output
frequency
Overload
restriction level
Deceleration rate
at overload restriction
Maximum
frequency
NOTE: The Overload Advance Notice function for intelligent outputs is related to Overload
Restriction operation, discussed in
B022 / B025
A004
Deceleration rate at overload restriction
B023 / B026
"Overload Advance Notice Signal" on page
B022 / B025
F001
Target frequency
t
4–46.