5�2�- Measured Parameters; 5�3�- Errors And Error Messages; 5�4�- Alarm Relay - Circutor computer MAX 6 Instruction Manual

5.2.- MEASURED PARAMETERS
When the device is in normal RUN mode, the following parameters can be displayed: cosφ,
mains current, THD of both mains current and mains voltage.
The device can also display the maximum values of mains current and voltage since the last
parameters clear.
The parameter being displayed can be selected with the navigation keys and is indicated by
the cursor.
5.3.- ERRORS AND ERROR MESSAGES
In case that the regulator detects a possible error, the front screen shows an error code. The
possible error codes are listed and explained in
Error message
5.4.- ALARM RELAY
In case that the number of stages configured in a computer MAX 6 or MAX 12, is less than 6
or 12 respectively, the relay number 6 or 12 is automatically configured as alarm relay.
The relay remains connected in absence of alarm (positive safety) and disconnects in case
that one or more of the errors listed in section
Notice that the absence of supply voltage will always be detected as an alarm condition
The alarm relay has a delay of 10 s in case of Over-compensation and Under-compensation,
but the operation is instantaneous (delay < 1 s) in case of Over-voltage and Over-current.
16
Table 7: Possible errors and messages displayed on the screen
Load current below the threshold current, or current transformer (CT)
E01
not connected. Appears if I
Overcompensation. The regulator detects that some stages should be
E02
disconnected but all the stages are already disconnected.
Under-compensation. The regulator detects that some stages should
E03
be connected and all the stages are already connected.
Overcurrent. The measured current exceeds the rated current by a +
E04
20%. (Rated current is considered to be the CT primary rated current)
Overvoltage. The measured voltage exceeds the rated voltage by a
E05
+15%.
.
Table 7
Description
<0,05 A
sec
"5.3.- ERRORS AND ERROR MESSAGES"
computer MAX
occur.
Instruction Manual