Learning Advanced Features
5.8.3 PID Sleep Mode
If an operation continues at a frequency lower than the PID operation conditions, a boost
operation is performed to extend sleep mode by raising the PID Reference, and then the
inverter enters PID sleep mode. In PID sleep mode, the inverter resumes PID operation
when the PID feedback falls below the PID Wakeup level and maintains the condition for
the time set at AP1-09 (PID WakeUp1 DT) or AP1-13 (PID WakeUp2DT).
PID Wakeup level may be calculated using the following formula:
PID Wakeup Level = PID-04 (PID Ref Value)–AP1-10 (PID WakeUp1Dev) or, PID-04 (PID Ref
Value) - AP1-14 PID (WakeUp2Dev).
Two sets of configurations are available in PID sleep mode for sleep mode frequency, sleep
mode delay time, wakeup variation, and wakeup delay time. One of the two configurations
may be selected depending on the multi-function input terminal configuration and input
conditions.
PID sleep mode 1
delay time
PID sleep mode 1
frequency
PID sleep mode 2
delay time
PID sleep mode 2
frequency