Firstly, check the filter sock. If it's clogged, the motor can build enough pressure.
You can order a new filter sock for Giesen Destoner in our online store
Giesen shop - Filter sock
You can adjust the power with the regulator button, counting 1-10 (see picture below). You can find the balance between the speed, bean's size and openings of the valve
Advanced steps:
You can verify the settings on the motor regulator of OW20/OW50/OW60. Open the box and verify that the regulator model is Schneider ATV320
Now you can follow the instruction below.
For starting the settings and putting power on the regulator:
CONF-->FULL-->I_O-->tCt and press LEL , push the enter button for 5 seconds
To start the frequency regulator, make a connection between +24 and Di1
When adjusting the parameters, get the connection out.
For choosing for the switch (2C) and for bounce back buttons (3C)
CONF-->FULL-->SIN-->nPr--> choose power (KW)
Standard net frequency
CONF-->FULL-->bFr--> choose 50
Tension of the fan
CONF-->FULL-->SIN-->unS--> choose tension
Power of the fan
CONF-->FULL-->SIN-->nCr--> choose power
Speed rotation of the fan
CONF-->FULL-->SIN-->nSP--> choose speed rotation
Min. Speed
CONF-->FULL-->SIN-->LSP-->choose 30
Max Speed
CONF-->FULL-->SIN-->HSP--> choose 40 for OW20/50, choose 50 for OW60
Ramp up
CONF-->FULL-->SET-->ACC-->choose 3s
Ramp down
CONF-->FULL-->SET-->DEC-->choose 3s