Protection Against Short Cycles - WEG CFW501 V1.8X Programming Manual

P0590 – Energy Saving Minimum Speed
Adjustable 360 to 18000 rpm
Range:
Properties: cfg, V/f
Access groups
HVAC
via HMI:
Description:
This parameter defines the minimum speed value at which the energy saving function will remain active.
The hysteresis for the minimum speed level is of 2 Hz.
P0591 – Energy Saving Hysteresis
Adjustable
0 to 30 %
Range:
Properties: cfg, V/f
Access groups HVAC
via HMI:
Description:
Hysteresis used to activate and deactivate the energy saving function.
If the function is active and the output current oscillates, it is necessary to increase the hysteresis value.
NOTE!
It is not possible to set those parameters, while the motor is spinning.

18.2 PROTECTION AGAINST SHORT CYCLES

The short cycle protection is intended to prevent the motor from starting and stopping in short periods of time.
In order to do so, a minimum running time and a minimum stopped time is set, inhibiting occasional run or stop
commands, except for disable general commands and/or external fault.
P0585 – Configuration of the Short Cycle Protection
Adjustable
0 = Inactive
Range:
1 = Active
Properties:
cfg
Access groups
HVAC
via HMI:
Description:
This parameter defines if the short cycle protection is active or not on the CFW501.
HVAC Functions
Factory 600 (525) rpm
Setting:
Factory
10 %
Setting:
Factory
0
Setting:
CFW501 | 18-3
18