Operation Page 29/30
6.15 Alarms
6.15.1 Relay alarm
A relay alarm is an over or under threshold limit value which you set. If a relay is deactivated
and at the same time the alarm has been set for this relay, then an alarm is triggered.
In the event of an alarm, the LED flashes at equal intervals (1 sec. on, 1 sec. off) and the buzzer
sounds. The symbol [Q] appears on the display beside the lowest operating button. You
acknowledge the alarm here.
When you acknowledge the alarm, the buzzer is switched off and the LED is continuously illu-
minated. The [Q]-symbol is the displayed inverted. The LED will no longer be illuminated and
the (inverted) [Q] symbol displayed only when the cause of the alarm has been rectified.
6.15.2 Error
In the event of a fault, the LED flashes periodically (0.1 sec. on;
0.9 sec. off), a buzzer sounds, and the error code is shown on
the display.
All relays are automatically deactivated in the event of an error
and the [Q] symbol can be seen beside the lowest operating
button. You acknowledge the alarm here.
The buzzer stops after the acknowledgement, but the LED con-
tinues to flash until the fault is rectified. The device is only ac-
cepted as being error-free when the fault is rectified, and no
further fault has occurred after 10 seconds. In the meantime,
the "ERROR 0" fault code is displayed.
The display then returns to the bar graph or relay status dis-
play - depending on which one you last had shown on the dis-
play.
Figure 25: "Error 2" display
6.15.3 Meaning of the error codes
The following faults can occur:
ERROR 1: Current fault on the filling level sensor (3.6 mA or 21,5 mA).
ERROR 2: Interruption in the sensor electric circuit, e.g. cable breakage.
ERROR 3: Short circuit in the sensor electric circuit.
ERROR 4: Internal device fault.
ERROR 0: Status between rectification of the fault and 10 seconds of the absence of any fault.
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