User Manual of EM760 High-Performance 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 below. Table 6-7 Description of Sleep/Wake-up Function Suggestion:
F09.28 (sleep action point) is greater than or equal to F09.30 (wake-up action point) during the positive action, and less than or equal to F09.30 (wake-up action point) during the negative action. 95 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 Description Mode of action State 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 has been maintained for the wake-up delay time (F09.31), the sleep status will be disabled. *: The output depends on the function code during the delay period; and the PID can continue normal output after the delay period. Negative action (e.g. constant temperature control) Normal work Judgment ofthe sleep conditions: Ifthe |Feedback| is less than the sleep action point (F09.28) (necessary condition:
the feedback pressure must be lower 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 ofthe 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 greater than or equal to the value of the wake-up action point (F09.30), and this has been maintained for the wake-up delay time (F09.31), the sleep status will be disabled. *: The output depends on the function code during the delay period; and the PID can continue normal output after the delay period.