Emerson 1C48241500, User Manual

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NetSure ™ DC/DC Converter Module
User Manual, UM1C48241500 (Revision E, July 20, 2015)
Spec. No: 1C48241500 Code: UM1C48241500
Model No: C48/24-1500 Revision E, July 20, 2015
4
Operation
Local Indicators
Location and Identification: Refer to Figure 1 .
Description: There are three (3) indicators located on the
converter module’s front panel. The functions of these indicators
are as shown in
Table 3 .
Note:
DC voltage must be present at the converter module output
terminals (from battery or an operating converter module) or
DC voltage at the input terminals.
Converter High Voltage Shutdown and Lockout
Restart
PROCEDURE
Remove the converter, wait 30 seconds or more (until the LEDs on
the converter extinguish), then re-insert the converter.
The converter(s) can also be restarted from the ACU+ LCD or WEB
Interface menu (via the Over Volt Reset command, found in the
Manual menu in the LCD menus or under the Converter Control
Tab in the WEB Interface).
Converter Current Limit
When setting total converter current limit, the set point to each
converter is the total set point divided by the number of
converters. For example, if the system contains five converters
and the current limit is set to 150 amps then each converter has a
current limit set point of 30 amps. If one or more converters are
removed or fail it will take several seconds for the individual set
points to the remaining converters to be reset. In the example
given, if one converter is removed the current limit set point will
drop to 120 amps (30 amps times four remaining converters) until
the controller can send updated set points to the remaining
converters. This takes a couple communication cycles (several
seconds) after which each converter would have a new set point of
37.5 amps for a total of 150 amps. The total current limit of the
converters should not be set such that the loss of the redundant
converters will cause this temporary set point to drop below the
actual maximum expected load.
Figure 1. Local Indicator Locations
Table 3. DC-DC Converter Module Indicators
Indicator Normal State Alarm State Alarm Cause
Power
(Green)
On
Off
No input voltage.
Internal input fuse open.
Flashing
The converter module is being
identified by the Controller.
Protection
(Yellow)
Off
On
DC input under/over voltage.
High temperature.
Moderate load sharing imbalance.
Flashing
Loss of communication with the
Controller (the converter can
provide power).
Alarm
(Red)
Off
On
Severe load sharing imbalance.
converter module output disabled
for any reason, including
overvoltage shutdown.
Flashing
Faulty fan (converter module shuts
down).
Protection Indicator (Yellow)
Alarm Indicator (Red)
Power Indicator (Green)