Controllers MCE06ADV – MCE12ADV
- 17 -
7.2
MCExxADV behaviour in ALARM mode
In case that the MCExxADV 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: MCExxADV behaviour under ALARM conditions
ERROR
message
Description
Possible cause and MCExxADV
behaviour
Measured current below
threshold (0,1ª 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 MCExxADV 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 controller 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 INTERNATIONAL CAPACITORS, S.A. technical service:
INTERNATIONAL CAPACITORS, S.A.
c/ Vallés, 32 – Pol. Ind. Can Bernades
08130 – Santa Perpetua de Mogoda (Barcelona) SPAIN
Tel. (+34) 935 747 017 – Fax: (+34) 935 448 433
E-mail :
Web:
www.lifasa.com