GE Industrial Solutions Pulsar Plus Controller - Manual (Page 163)

Pulsar Plus Controller Family
Issue 7 December 2011 163
Appendix C: Battery Functions
Float Mode
Float mode is the default operation mode of the power system. The system voltage, while in float mode, is
determined by the configuration parameter Rectifier Float Set point (fsp) and may be adjusted by the
Battery Thermal Compensation circuit, if active. No individual adjustment of plant rectifiers is necessary and
load sharing among plant rectifiers is automatic in all plant modes and will take effect within several seconds
of a new rectifier being added to the system.
The Rectifier Float Set point should be set per the battery manufacturer's recommendations. Note that the
actual Rectifier Float Set point measured on the plant may differ from the value set by the user if battery
thermal compensation (STC) is enabled.
Slope Thermal Compensation
The following is a list of slope thermal compensation parameters that can be configured in the controller.
High Temperature Alarm
Alarm threshold can be set from 30°C to 85°C. The alarm retires when the temperature drops to 10°C below
the set threshold. The factory default setting is 55°C.
High Temperature Compensation
The system controller automatically enables high temperature compensation if a VT thermal probe is
detected. The feature can be disabled by disconnecting all thermal probes and updating the serial links using
the Lamp Test function. Settings for this feature are as follows.
V Step Down: Battery step temperature can be set from 45°C to 85°C. The factory default setting is 75°C.
High Comp Limit: The upper temperature thermal limit can be set from 30°C to 55°C. The factory default
setting is 45°C.
Decrease: The upper temperature slope setting (rate of decrease) can be set from -1mV to -10mV in -.1mV
steps. The factory default is -3mV.
Nominal Temperature: Temperature above or below which Slope Thermal Compensation is enabled. The
stable range is 15 to 30°C. The factory default setting is 25°C.