Honeywell SmartVFD HVAC2 Applications Manual page 169

PID controller I-time
This parameter defines the integration time of the
PID controller. If this parameter is set to 1,00
second, the controller output is changed by a
value corresponding to the output caused from
the gain every second. (Gain*Error)/s.
PID controller D-time
This parameter defines the derivative time of the
PID controller. If this parameter is set to 1,00
second, a change of 10% in the error value
causes the controller output to change by 10%.
Sleep min frequency
Sleep delay
Wake-up error
This function will put the drive into sleep mode if
the frequency stays below the sleep limit for a
longer time than that set with the Sleep Delay
(P14.12). This means that the start command
remains on, but the run request is turned off.
When the actual value goes below, or above, the
wake-up error depending on the set acting mode
the drive will activate the run request again if the
start command is still on.
Actual value
Frequency
Sleep min
frequency
P14.11
Fig. 67. Sleep min frequency, Sleep delay,
169
Wake up error
P14.13
Sleep delay
P14.12
Regulating mode Sleep
Wake-up error
Regulating mode
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