PG.
SPECIAL APPLICATIONS: BALANCE FUNCTION. Function 3 Menu 15
The Balance Function is an application that is particularly useful for automatic weighing systems in which the
material to be weighed is conveyed by electromagnetic vibrators. In this case, Brovind controllers have a
specific weight management function.
When the Balance Function is enabled, sensors PX1 and PX2, and 0-10 V (considered as a logic sensor)
are automatically made available. These peripherals cannot be used for other purposes.
Use the following steps and connections to configure the function:
- Open the controller.
- Connect the vibrator or check that it is connected properly (Fig. 07 or Fig. 08 or Fig. 09).
- Connect the high speed START signal from the balance setpoint to terminals + and OUT of the 0-10 V
by means of a voltage-free contact.
- Connect the STOP signal from the balance setpoint to terminals + and IN2 of sensor PX2 by means of a
voltage-free contact.
- Connect the INTERMEDIATE SPEED signal from the balance setpoint to terminals + and IN1 of sensor
PX1 by means of a voltage-free contact.
- Turn off the controller and then turn it on.
- You now have to set the work speed to be used. With keys + and - on Menu 2, search for the
intermediate speed you want to use. When you find the speed, make a written note of the value in g as
shown on the display (A0). Now, still on Menu 2, search for the START speed (high speed) you want to
use and leave the controller on this value.
- Go to Menu 11. When the message 1A appears, set the intermediate speed you wrote down earlier.
- Go to Menu 15. When you enter the Menu the message rl 00 will appear. Press the + key until rl 03
appears. Then press PR and the function will be enabled.
You can set delays at activation and deactivation by using the sensors delays.
When the Balance Function is used, the sensors are automatically enabled and assigned to the function.
NOTE
If we use a DCFF board with software version preceding the 5.00 it is possible to enable the function only on
one board, but from the version 5.00 onwards the function can be enabled on both boards as a new digital
input 010Volt has been added.
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