User manual

URDR0001 - User manual - 23
7.10 Latch on functions
For use with input P o t .1 (potentiometer 6 KΩ) and Po t.2 (potentiometer 150
KΩ) and with linear input (0…10 V, 0...40 mV, 0/4…20 mA), it is possible to asso-
ciate start value of the scale (parameter 6
Lo L.i ) to the minimum position of the
sensor and value of end scale (parameter 7
u P. L.i ) to the maximum position of
the sensor (parameter 8
La t c. congured as Std . ).
It is also possible to x the point in which the controller will display 0 (however
keeping the scale range between
Lo L.i and u P. L.i ) using the “virtual zero”
option by setting
u .OSt. or u.Oin. in parameter 8 La t c .
If you set
u.Oin. the virtual zero will reset after each activation of the tool; if you
set
u .OSt. the virtual zero remains xed once tuned.
To enable the LATCH ON function select chosen conguration for parameter
LA t c
2
.
For the calibration procedure refer to the following table:
Press Display Do
1
simultaneaously
Exit parameters congu-
ration. Display 2 shows
the writing
LA t c .
Place the sensor on
minimum operating
value (associated with
Lo L.i . ).
2
Set the value on mini-
mum. Display shows
Lo w .
Place the sensor on
maximum operating
value (associated with
u p L.i . ).
3
Set the value to maxi-
mum.
The display shows
Hi G H .
To exit standard pro-
cedure press
SET
. For
“virtual zero” settings
place the sensor on the
zero point.
2
The tuning procedure starts by exiting the conguration after changing the parameter.