When entering Sleep Mode, the lower status line in the Local Control Panel shows Sleep Mode.
See also signal flow chart in section 22-2*
No Flow Detection
.
There are three different ways of using the Sleep Mode function:
1) Systems where the integrated PI controller is used for controlling pressure or temperature e.g. boost systems
with a pressure feed back signal applied to the frequency converter from a pressure transducer. par.1-00
Con-
figuration Mode must be set for Closed Loop and the PI Controller configured for desired reference and feed
back signals.
Example: Boost system.
If no flow is detected, the frequency converter will increase the set point for pressure to ensure a slight over
pressure in the system (boost to be set in par.22-45
Setpoint Boost).
The feedback from the pressure transducer is monitored and when this pressure has dropped with a set per-
centage below the normal set point for pressure (Pset), the motor will ramp up again and pressure will be
controlled for reaching the set value (Pset).
Parameter Description
216 TR200 Programming Guide
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