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2 Parameter Description
2
2) In systems where the pressure or temperature is controlled by an external PI controller, the wake up conditions can not be based on feedback from
the pressure/temperature transducer as the setpoint is not known. In the example with a boost system, desired pressure P
Configuration mode
, must be set for Open Loop.
Example: Boost system.
When low power or low speed is detected the motor is stopped, but the reference signal (f
of the low pressure created, the controller will increase the reference signal to gain pressure. When the reference signal has reached a set value f
the motor restarts.
The speed is set manually by an external reference signal (Remote Reference). The settings (par. 22-3*) for tuning of the No Flow function must be set
to default.
218
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) from the external controller is still monitored and because
ref
MG.20.W1.22 - VLT is a registered Danfoss trademark
VLT Automation VT Drive FC322
Programming Guide
is not known. Par. 1-00,
set
wake
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