CIRCUTOR computer MAX Plug&Play series - Manual (Page 19)

M98228201-03-14A
computer MAX 6 / computer MAX 12
- 19 -
7.2 Computer MAX behaviour in ALARM mode
In case that the Computer MAX detects an error during normal operation (see paragraph 3.2) the screen
displays an error code and the behaviour of the device is as described in table 7-.1.
Table 7-1: Computer MAX behaviour under ALARM conditions
ERROR
message
Description Possible cause and Computer
MAX
behaviour
Measured current below
threshold (0,05A measured
at the secondary side of CT) Posible causes: Baja carga o TC no conectado.
El aparato muestra el LED de RUN y la pantalla con todo
ceros parpadeando y no conecta ningún relé
Over-compensation. The
controller demands for
stages disconnection and
they are all disconnected. Possible causes: C/K not properly adjusted
None of the realys will connect.
Sub-compensation. The
controller demands for
stages connection and they
are all connected. Possible causes: C/K not properly adjusted
All the relays will remain connected, except the alarm relay
if exists (see paragraph 3.3)
Overcurent. The measured
current is 20% above the
rated current (primary of CT) Possible causes: C/K not properly adjusted
Alarm relay, if exists, disconnects (see paragraph 3.3)
Although the regulation may be wrong, the device tries to
regulate the PF normally.
Overvoltage. The
measured voltage is 15%
above rated voltage. Possible causes: Connection to a wrong supply voltage.
Alarm relay, if exists, disconnects (see paragraph 3.3)
Although the regulation may be wrong, the device tries to
regulate the PF normally.
8 MAINTENANCE
The Computer MAX 6 and MAX 12 do not require a special maintenance program. In case that some
adjustments or maintenance might be necessary it must be performed by dully qualified staff and
respecting the required safety procedures.
If any malfunction of the PF compensation equipment or associated protections is detected, the
equipment should be disconnected from mains. Before performing any maintenance repair or update
operation on the Computer or associated PF compensation equipment, be sure to disconnect the main
switch and after disconnecting the switch, wait at least 5 minutes to ensure that the capacitors are totally
discharged.
9 TECHNICAL SERVICE
In case of any doubt on the behaviour of the device or in case of malfunction which cannot be solved by
the maintenance staff, contact CIRCUTOR technical service:
CIRCUTOR, SA. - Servicio Posventa.
Vial Sant Jordi, s/n
08232 – Viladecavalls (Barcelona)
Tel. - 902 449 459 (Spain)
Tel. - (+34) 93 745 29 00 (Out of Spain)
Fax. - (+34) 93 745 29 14
e-mail - [email protected]