Nordberg A2020 User Manual

Version 3/01 Page 8/25
2.2.3 Load control mode
On load control mode, the crusher controller compares the actual pressure and power
values with the preset ones. If the pressure or power actual value is bigger than preset
value + hysteresis (hysteresis values are set in the configuration), setting increases until
actual value is less than preset value + hysteresis value.
If the pressure and power actual values are below preset values – hysteresis, setting
decreases until actual values are above preset values – hysteresis.
Selecting load control mode
•
Enter crusher control display (press F1 in main menu).
•
Select OP. MODE (press F1). Choose the load control mode alternative by moving
the highlighted line (F5 up, F6 down).
•
Accept your choice (press F7).
The selected operating mode is shown in the operating mode window. Press F7 to exit.
2.2.4 Feeder control
Level switch (on/off)
Following actions are valid when level switch is connected and digital level switch is
selected in the configuration:
•
If the cavity level is over the maximum limit, feeder is stopped. Feeder is restarted
when level is ok and delay time (counting started after ok signal) is passed. Delay
time can be set in the confuguration.
2.2.5 Winter mode
It is possible to keep the crusher warm when not in operation by selecting winter mode
function. In winter mode the lubrication oil is heated and pumped according to timers and
limits set in configuration.
2.3 Setting preset values
2.3.1 Setting preset values on Setting control mode
•
Enter crusher control display (press F1 in main menu).
•
Select PR. VALUE (press F2). The preset value window turns yellow.
•
Set the desired preset value (F1 increases, F2 decreases in 1 mm increments).
•
Accept the preset value (press F3). The preset value window turns grey.
•
Press F7 to exit.
2.3.2 Setting preset values on Load control mode
•
Enter crusher control display (press F1 in main menu).
•
Select PR. VALUE (press F2). The preset value window turns yellow.
•
Select pressure (F5) or power (F6) as the preset value to be changed.
•
Select the desired preset value (F1 increases, F2 decreases in 0.1 bar or 1 kW
increments).
•
Accept the preset value (press F3). The preset value window turns grey.

Nordberg A2020 Specifications

General

Brand	Nordberg
Model	A2020
Category	Controller
Language	English