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Code
Alarm
60
CAPACITOR
CHARGE
Traction
Pump
EPS
(P)
(E)
(T)
Follows the charging capacitor system :
KEY
10A
KEY
INVERTER
When the key is switched ON, the inverter tries to charge
the power capacitors through a power resistance, and
check if the capacitor are charged within a timeout. If
they do not charge, an alarm is signalled; the main
contactor is not closed.
Troubleshooting :
A)
There is an external load in parallel to capacitor bank,
which sinks current from the controller capacitors
precharging circuit, thus preventing the caps from
charging. Check if a lamp or a dc/dc converter or a
auxiliary load is placed in // to capacitor bank.
B)
The charging resistance is opened; insert a power
resistance across line contactor power terminals; if the
alarm disappears, it means the controller internal
charging resistance is damaged.
C)
The charging circuit has a failure, inside the controller.
D)
There is a problem in the controller power section.
Follows the charging capacitor system :
KEY
10A
KEY
Cause :
When the key is switched ON, the inverter tries to charge
the power capacitors through a series of a PTC and a
power resistance, and check if the capacitor are charged
within a timeout. If the capacitor voltage measured is less
than 20% of the nominal battery voltage, an alarm is
signalled; the main contactor is not closed.
Troubleshooting :
A)
There is an external load in parallel to capacitor bank,
which sinks current from the controller capacitors
pre-charging circuit, thus preventing the caps from
charging. Check if a lamp or a dc/dc converter or an
auxiliary load is placed in parallel to capacitor bank.
B)
The charging resistance or PTC is opened; insert a
power resistance across line contactor power
terminals; if the alarm disappears, it means the
controller internal charging resistance is damaged.
C)
The charging circuit has a failure, inside the controller.
D)
There is a problem in the controller power section.
7-74
Description
power
capacitor
RES.
POWER
CAPACITOR
PTC
RES
INVERTER
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