EP Equipment LIST JX0, Руководство по обслуживанию

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REV. 07/2019
ELECTRICAL SYSTEM
8
131
Error Message
Possible cause Fault elimination
Error
Error text
53 STBY I HIGH
When the key is switched on,
the inverter tries to charge
the power capacitors through
the series of a PTC and a
power resistance, checking
if the capacitors are charged
within a certain timeout. If the
capacitor voltage results less
than a certain percentage of
the nominal battery voltage, the
alarm is raised and the main
contactor is not closed.
"1-Check if an external load in
parallel to the capacitor bank,
which sinks current from the
capacitors-charging circuit,
thus preventing the caps
from charging well. Check if a
lamp or a dc/dc converter or
an auxiliary load is placed in
parallel to the capacitor bank.
2- The charging resistance or
PTC may be broken. Insert a
power resistance across line-
contactor power terminals; if
the alarm disappears, it means
that the charging resistance is
damaged.
3- The charging circuit has a
failure or there is a problem in
the power
section. Replace the
controller."
60 CAPACITOR CHARGE
The temperature of the
controller base plate is above
85 °C. The maximum current is
proportionally decreased with
the temperature excess from 85
°C up to 105 °C. At 105 °C the
current is limited to 0 A.
"It is necessary to improve the
controller cooling. To realize
an adequate
cooling in case of finned heat
sink important factors are the
air flux and the
cooling-air temperature. If the
thermal dissipation is realized
by applying the
controller base plate onto the
truck frame, the important
factors are the
thickness of the frame and the
planarity and roughness of its
surface.
If the alarm occurs when the
controller is cold, the possible
reasons are a
thermal-sensor failure or a
failure in the logic board. In
the last case, it is
necessary to replace the
controller."