Renova isomatic, Руководство пользователя

Страница: 9 / 28

9
value.
By pressing Esc it returns to the menu from which it entered in Manual mode.
In case an alarm is active, the acknowledgement (shutdown) of the alarm occurs by simultaneously pressing the OK
and Esc keys.
In manual mode are also available some quick procedures to perform operations that might be done in other ways
(but with a greater number of steps). These quick procedures include:
- Set point setting for the tension: by pressing the OK key with the key it sets the value of the measured tension
as set point value.
SYSTEM CALIBRATION
Through the calibration procedures the references for the desired tension measurements are provided to the system.
It is worth noting that the calibration procedures are independent from your system of units adopted: the values
entered by the user during the calibration procedures are handled by the system only as numbers, without any
reference to their physical meaning (in other words, the calibration procedure is the same whether the tension is
expressed in Kg, Pounds or whatever). Since the calibration is done on two points for any measured size you need to
have at your disposal some known conditions of:
-
low tension (no material is on the roller with load cells)
-
high tension (a weight of known value is tied to the roller with load cells)
Due to these constraints and the fact that calibration is critical in relation to measured values, the tension control is
released from the factory with a default calibration to be modified after the installation on the machine.
Important
: to avoid losing the calibration values, before proceeding to a new calibration take note of the values of
parameters TXL, TYL, TXH, TYH (see paragraph concerning the setting mode Parameters hereinafter in this manual).
Low calibration
1) Do not lean anything on the roller with load cells
2) Press simultaneously OK, Esc and keys
High calibration
1) Tie a weight of known value to the roller with load cells
2) Press simultaneously OK, Esc and keys
3) Tension high calibration: press and keys to decrease or increase the numeric value displayed; press
OK key to confirm the figure that is going to be changed. When the last figure of high calibration is confirmed,
the controller automatically goes to the visualization of the measured tension and set point.
Sum up of the functions of keys in Manual mode:
Decrease the tension in the machine