TECO F510 series - Page 287

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Figure 4.4.74: (a) PID control bock diagram
Figure 4.4.74: (b) Timing diagram PID sleep / wakeup
Figure 4.4.74: (c) Timing diagram of PID sleep compensation frequency/ wakeup
Notes:
- Refer to Fig. 4.4.74: (b) for parameter 10-40=0. The PID sleep timer is enabled when the output
frequency (Fout) falls below the PID sleep frequency (10-17). When the sleep timer reaches the
set PID sleep delay time (10-18) the inverter will decelerate to a stop and enter the sleep mode.
- Refer to Fig.4.4.74: (c) for parameter 10-40=1. The PID sleep timer is enabled when the output
frequency (Fout) falls below the PID sleep frequency (10-17). The output frequency changes with
the reference frequency (Fref) when the sleep timer reaches the set PID sleep delay time (10-18),
the motor will run gradually to PID sleep frequency set by 10-17. (It is applicated in the occasion of
fixed frequency.)
- While sleep mode is active and the motor has stopped, the internal PID control is still in operating.
When the reference frequency increases and exceeds the wakeup frequency parameter 10-19 for
the time specified in the wakeup delay time parameter 10-20, the inverter will restart and the
output frequency will ramp up to the reference frequency.
Ex:
If wakeup frequency < sleep frequency, start upon sleep frequency and the inverter gets into sleep
mode by wakeup frequency.
If wakeup frequency > sleep frequency, start upon wakeup frequency and the inverter gets into