GE Industrial Solutions Galaxy Pulsar Edge - Manual (Page 98)

Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
98
rectifier efficiency. Rectifiers that are not required to support the
system’s present load based upon the configured Efficiency Target
Capacity will automatically be placed into standby. The load will be
constantly monitored and any rectifiers necessary to support additional
load will be turned on. In addition, rectifiers placed in Standby are
cycled over time to insure they remain operable. The factory default
for this feature is Disabled.
Efficiency Target
Capacity The capacity percentage that the system controller tries and maintains
all system rectifier outputs. The value can be set from 20% to 95%
with a factory default of 70%.
Efficiency Turn On
Capacity The capacity percentage of a system rectifier when reached that the
system controller will take a rectifier out of Standby and place it into
service. The value can be set from 25% to 100% with a factory default
of 76%.
Inter-Rectifier
Delay The value of time the controller will take before placing the second or
additional system rectifiers into the standby mode of operation. This
value can be set between 1 and 30 minutes with a factory default
setting of 10 minutes.
Initial Delay The value of time the controller will monitor and take before placing
the first system rectifier into the standby mode of operation. This value
can be set between 1 and 30 minutes with a factory default of 10
minutes.
High Voltage Float
and High Voltage
Boost These alarms indicate an abnormally high float or boost output
voltages (HFV) on the primary DC bus. The controller does not
attempt to shut the offending unit down during this first level. These
thresholds can be set from -50.00V to -60.00V with a factory of -
56.00V for both settings in 48V and from +24.75V to +29.75V with a
factory of +27.74V for both settings in 24V.
Very High Voltage
Float and Very High
Voltage Boost These alarms are the High Voltage Shutdown Alarm (HVSD)
threshold for the primary DC bus during float and boost, respectively.
When reached the controller will send out the HV shutdown command
to all rectifiers so that the offending rectifier will shut itself down. The
threshold can be set from -50.00V to -60.00V with factory default
thresholds of -57.00V for 48V and from +25.74V to +31.75V with
factory default thresholds of +28.24V for 24V.
AC Fail A single rectifier in the system has reported an AC failure to the
controller.
Multiple AC Fail Multiple rectifiers in the system have reported AC failures to the
controller. The number of rectifiers required to report an ACF is
configurable based on the number of rectifiers in the system. The
factory default for this threshold is 2.
Rectifier Fail A single rectifier in the system has reported a rectifier failure to the
controller.
Redundancy Loss
Alarm An alarm generated when the configured minimum number of
redundant rectifier is lost when compared to the present system load.
The factory default for this threshold is 1.
Rectifier Current
Limit One or more rectifiers in the system reported they are operating in
current limit mode.
Multiple Rectifier Multiple rectifiers in the system have reported rectifier failures to the