SITEC S.r.l. Industrial electronics
User Manual TRG 72x72
R2.A
Pag. 15
5.4 H
YSTERESIS
To set the hysteresis you have to enter the configuration menu (see paragraph
), enter the level
hy5
(see
), and then select
1nF
to set the lower hysteresis, or
5UP
to set the higher hysteresis, then select
the desired value and save the new value by the OK key.
The hysteresis can be used to filter undesired signals in the control systems, considering the signal recent
history. This prevents undesired commutations due to imprecision and weak fluctuations around one single
threshold value.
The regulator behaves in the following way:
Deactivate
K1 and/or K2
) when the temperature (of the oven) is higher than the
“
se higher hysteresis
”.
Activate
K1 and/or K2
when the temperature (of the oven) is lower than the “
setpoint
– lower hys-
teresis
”.
If the oven temperature is higher than the “
setpoint
– lower hysteresis
” temperature and lower than
the “
se higher hysteresis
” temperature (neutral zone) the outputs do not change their sta-
tus.
To
deactivate
the hysteresis, you just have to set the lower hysteresis and higher than zero.
Please note
: The hysteresis can be set-up only after having enabled the
On/Off temperature setting (see
