7
Fig. 5
: Limit-value alarm, alarm contact normal
A30=0: relative limits
A30=1: absolute limits
Fig.
6
:Bandwidth alarm, alarm contact normal
A30=2: relative limits
A30=3: absolute limits
Fig. 7
: Limit-value alarm, alarm contact inverted
A30=4: relative limits
A30=5: absolute limits
Fig. 8
:Bandwidth alarm, alarm contact inverted
A30=6: relative limits
A30=7: absolute limits
A31 Special function for limit-value or bandwidth alarm
Here, you can select whether or not the display blinks and the buzzer sounds in the case of a limit-value or bandwidth alarm. The factory setting is
with this function active.
A sensor alarm (display: F1L or F1H) is always signalled by a blinking display and the buzzer.
A32 Type of display
If A32=0 is set, the actual value is displayed. If A32=1 is set, setpoint S1 is always displayed and the actual value can then be displayed only with the
aid of parameter P0 (second operating level).
A33 Not used
A40 Hysteresis mode, regulation contact 1
A41 Hysteresis mode, regulation contact 2
This parameter permits selection of a symmetrical or asymmetrical hysteresis at the switching point. An asymmetrical hysteresis lies below the
setpoint for the heating function and above the setpoint for the cooling function. A symmetrical hysteresis (factory setting) is effective on both sides
of the setpoint, regardless of the selected switching function. See also Figs. 1 - 4.
