User Manual of A90 Series Inverter When the output value and feedback value tend to be stable or the controlled quantity is within the allowable range on some occasions or at a certain moment, and the output is not allowed, the sleep status can be applied for a short time. If the controlled quantity is beyond the control range, the inverter will be awakened and generate the output. These steps will be repeated to make the controlled quantity within the allowable range and also save the energy. The detailed function description is shown in Table 7-15.
Table 7-15 Description of Sleep/Wake-up Function 207 Function Function code Default Parameter description Unit Attribute code name setting F09.27 PID sleep control options 0: Invalid 1: sleep at zero speed 2: sleep at lower frequency limit 3: sleep with tube sealed 0 ● F09.28 Sleep action point 0.00-100.00 (100.00 corresponds to the PID setting feedback range) % 100.00 ● F09.29 Sleep delay time 0.0 - 6500.0 s 0.0 ● F09.30 Wake-up action point 0.00-100.00 (100.00 corresponds to the PID setting feedback range) % 0.00 ● F09.31 Wake-up delay time 0.0 - 6500.0 s 0.0 ● Method Mode of State Description action Positive action (e.g.
constant pressure control) Normal work Judgment of the sleep conditions: If the |Feedback| is greater than the sleep action point (F09.28) (necessary condition: the feedback pressure must be greater than or equal to the set pressure during restart after the stop or sleep), or the output frequency of the inverter reaches the lower limit, causing the failure to continue to decelerate (due to the lower frequency limit or lower output limit of the inverter), and these conditions have been met and maintained to the sleep delay time (F09.29), the sleep status will be enabled. ★: The PID continues the output during the delay period. The output depends on the function code after the delay period.
Sleep status Judgment of the wake-up conditions: If the |Feedback| is less than or equal to the value of the wake-up action point (F09.30), and this