Sleep Function - Vacon 100 flow Applications Manual

Monitoring value and parameter descriptions
Level ref
8.12.2

Sleep function

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. This means that the start command remains on, but
run request is turned off. When the actual value goes below or above the wake-up level depending
on acting mode, the drive will activate run request again, if the start command is still on. Hence the
drive wakes up.
P3.13.5.1 SP1 S
LEEP
The drive goes into the sleep mode (the drive stops) when the output frequency of the drive falls
below the frequency limit defined by the parameter.
The value of the parameter is used when the setpoint signal of the PID controller is taken from the
setpoint source 1.
The drive goes into the sleep mode,if
• the output frequency remains below the sleep frequency for longer than the defined sleep
delay time
• the PID feedback signal remains above the defined wake-up level.
The drive wakes up from the sleep mode, if
• the PID feedback signal falls below the defined wake-up level.
NOTE! Incorrectly set wake-up level might not allow the drive to go into the sleep mode.
P3.13.5.2 SP1 S
LEEP DELAY
The drive goes into the sleep mode (the drive stops) when the output frequency of the drive falls be-
low the sleep frequency limit for a longer time than defined by the parameter.
The value of the parameter is used when the setpoint signal of the PID controller is taken from the
setpoint source 1.
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Level control
Figure 89. Feedforward control
F (ID 1016)
REQUENCY
(ID 1017)
FFW
Outflow
FT
control
9099.emf
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