7�2�- Computer Max Behaviour In Alarm Mode - Circutor computer MAX 6 Instruction Manual

7.2.- computer MAX BEHAVIOUR IN ALARM MODE
In case that the computer MAX detects an error during normal operation (see
AND ERROR MESSAGES"
is as described in
ERROR
message
E01
E02
E03
E04
E05
26
), the screen displays an error code and the behaviour of the device
Table 15
Table 15: Computer MAX behaviour under alarm conditions
Description
Measured current below
threshold (0,05A measu-
red at the secondary side
of CT)
Over-compensation� The
controller demands for
stages disconnection and
they are all disconnected
Sub-compensation� The
controller demands for
stages connection and they
are all connected.
Overcurent� The measu-
red current is 20% above
the rated current (primary
of CT)
Overvoltage� The measu-
red voltage is 15% above
rated voltage.
Possible cause and computer MAX behaviour
Possible causes: Low load or CT not connected.
The device shows the RUN LED and the screen with
everything blinking zeros and does not connect any relays
Possible causes: C/K not properly adjusted
None of the realys will connect.
Possible causes: C/K not properly adjusted
All the relays will remain connected, except the alarm relay
if exists (see
"5.4.- ALARM RELAY"
Possible causes: C/K not properly adjusted Alarm relay,
if exists, disconnects (see
the regulation may be wrong, the device tries to
regulate the PF normally.
Possible causes: Connection to a wrong supply voltage.
Alarm relay, if exists, disconnects (see
). Although the regulation may be wrong, the device
LAY"
tries to regulate the PF normally.
computer MAX
"5.3.- ERRORS
)
). Although
"5.4.- ALARM RELAY"
"5.4.- ALARM RE-
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