MINAC Systems Revision A
USER MANUAL 31 January 2005
63860.doc
© For reproduction rights, see cover page.
6.7 Disturbance of Operation and Corrective Measures
Every operational failure results in an interruption of the output power. The FAILURE
lamp on the operating panel and an alarm message in the MMI display indicate the
fault. Before restarting the converter, find the reason for the alarm and eliminate the
possible cause(s).
WARNING!
Do not open the equipment's covers or panels during
operation. Refer trouble shooting to qualified
personnel.
EFD personnel or qualified on-site maintenance personnel normally should take
corrective actions. However, the operator may handle the alarm situations set out
below. If these actions do not restore normal operation, the operator must record the
error message and contact the on-site maintenance personnel, EFD Service
Department or the nearest EFD representative. Whenever possible, the operator
should manually record the relevant operational data as this information may be of
help in further fault finding. This data will include current, voltage, power and
frequency readings at the time of the fault or just before the fault occurred.
All fault-finding and corrective actions by on-site maintenance personnel should
normally be performed with the main disconnector turned off. Always comply with all
safety measures when handling electrical equipment, including any national or
international regulations.
WARNING!
HIGH VOLTAGE: The unit must never be left
unsupervised when the power supply is turned on
and protective covers are removed. Such conditions
involve a risk to life and equipment.
The following operational failures are indicated by alarm messages on the MMI
display, and the FAILURE lamp on the operating panel. The failures, probable
causes and corrective actions are listed below.
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