GE Industrial Solutions Galaxy Pulsar Edge - Manual (Page 173)

Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
173
severity.
• Very High Temperature Alarm: The Very High Battery Thermal Alarm
Threshold is a second alarm threshold available for high battery temperature. The
monitored battery temperature at which above this threshold results in a Very
High Battery Thermal alarm. This alarm threshold can be set from 30°C to 85°C
and its severity is configurable. The alarm retires when the temperature drops to
10°C below the set threshold. The factory default setting is TBD°C with Power
Major severity.
• Low Temperature Alarm: The Low Battery Thermal Alarm Threshold is the
monitored battery temperature at which below this threshold results in a Low
Battery Thermal alarm. This alarm threshold can be set from -40°C to 10°C and
its severity is configurable. The alarm retires when the temperature raises 10°C
above the set threshold. The factory default setting is TBD°C with Power Minor
severity.
• Very Low Temperature Alarm: The Very Low Battery Thermal Alarm
Threshold is a second alarm threshold available for low battery temperature. The
monitored battery temperature at which below this threshold will result in a Very
Low Battery Thermal alarm. This alarm threshold can be set from -40°C to 10°C
and its severity is configurable. The alarm retires when the temperature raises
10°C above the set threshold. The factory default setting is TBD°C with Power
Major severity.
High Temperature Compensation
The Slope Thermal Compensation feature of the controller must be Enabled for this feature to
operate. The controller will automatically detect and obtain temperature measurements from an
attached QS873 thermal probe. However, it does not automatically enable thermal compensation.
A user must configure the controller to Disable the Slope Thermal Compensation feature.
Disconnecting thermal probes will result in thermal probe failures. This alarm can be removed by
issuing the Uninstall Equipment operation through the Craft port or remote interfaces. Note: if
STC is Enabled, removing all thermal probes and issuing the Uninstall Equipment will still result
in a Thermal Probe fail alarm. STC must be Disabled to remove the alarm.
• V Step Down: The High Temperature Voltage Step Down Temperature threshold, shown
as spt, is the temperature at which the system controller will adjust the rectifiers to set the
DC bus voltage down by another .17V per cell. This battery step down temperature can
be set from 45°C to 85°C. A 10
o C hysteresis is built into this feature. The factory default
setting is 75°C.
• High Comp Limit: The High Temperature Compensation Limit, shown as utt, is the
upper temperature thermal limit at which high temperature thermal compensation is
stopped and the system DC voltage is no longer decreased according to the configured
linear slope rate. This temperature threshold limit can be set from 30°C to 55°C. The
factory default setting is 45°C.
• Decrease: The high temperature decrease rate, shown as usp, establishes the linear slope