Emerson Lorain CIP 48120 AP6C55CA, User Manual

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UM6C55C (P7000597) User Manual
Standard 10.00 (March 2008) Lorain Power System (AP6C55CA/CB)
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Table 7.1 – Alarms generated by the Controller CIP
Severity Possible causes Action
AC failure: AC supply failed or out of range
for the rectifiers (also extended over O1
relay contacts) Verify if there is an ongoing AC outage or if
circuit breaker(s) has(have) tripped at the AC
panel.
BOD alarm: ongoing discharge of the
batteries (<–51 V dc) (also extended over
O1 relay contacts) Verify if there is an ongoing AC outage or if the
rectifier capacity is sufficient for the load.
Controller fail alarm: failure of the Controller
CIP
(controller status red)
Verify that the controller settings are correct and
that there is no communication fault.
FA alarm: distribution or battery fuse blown
or circuit breaker tripped Verify for the cause of the activation: short-
circuit, overload, etc.
High battery temperature alarm: the sensor
at the batteries has detected a high
temperature condition (
≥
40
o
C)
Verify for the cause of the high temperature
condition (defective or misadjusted heating
system, bad ventilation, direct sunlight, etc.).
HV alarm: ongoing high voltage condition
(>–56 V dc) Verify for the cause of the high voltage condition
(defective rectifier, incorrect controller settings,
etc.)
LVD alarm: the system has initiated a low
voltage disconnect LVD ‘Contactor’ status is OPEN.
LV alarm: ongoing low voltage condition
(<–47 V dc for more than 15 seconds) (also
extended over O1 relay contacts) Verify if there is an ongoing AC outage or if the
rectifier capacity is sufficient for the load.
MAJOR
(red):
extended
over the
MJ relay
contacts
RFA Major alarm: failure of two or more
rectifiers If on all rectifiers, verify if there is an ongoing
AC outage or HVSD condition. Otherwise, verify
for specific cause per Table 4.2.
Battery temperature probe fail Check sensor range [–45ºC to +100ºC].
Fan fail alarm: failure of the fan on one or
more rectifiers (yellow on controller, flashing
yellow on defective rectifier) Replace the fan module (see Procedure 7.8).
Low battery temperature alarm: the sensor
at the batteries has detected a low
temperature condition (
≤
0
o
C)
Verify for the cause of the low temperature
condition (defective or misadjusted cooling
system, open door/louvers during winter, etc.).
RFA Minor alarm: failure of one rectifier Verify for specific cause per Table 4.2.
MINOR
(yellow):
extended
over the
MN relay
contacts
Rectifier high temperature alarm: high
temperature condition detected inside one
or more rectifiers Verify for the cause of the high temperature
condition (ambient high temperature, defective
fan, obstructed ventilation openings, etc.).
Refer to Chapter 4 for the definition of the LED indicators on each individual
module of the Lorain CIP power system.
7.2.2. Troubleshooting the System Manager CIP
The System Manager CIP provides 51 different alarms, which are listed in
screen 29, in Chapter 5. Relay outputs 1, 2 and 3 are factory configured as
follows: all major alarms are concentrated on relay output 1, all minor alarms
are concentrated on relay output 2, while observation alarms are concentrated
on relay output 3. However, relay outputs 1, 2 and 3 can be reassigned in the
field, and relay outputs 4 to 8 can be configured in the field to meet specific
customer requirements.