GE Industrial Solutions Pulsar Plus Controller - Manual (Page 165)

Pulsar Plus Controller Family
Issue 7 December 2011 165
Figure C-1: Slope Thermal Compensation
The following describes the configuration parameters which may be activated or altered by the user. Refer
to Appendix D for the ranges of values the parameters may take and their factory default settings.
Lower Thermal Limit (ltt): The lower temperature where, if Low Temperature Compensation is enabled, the
controller will increase plant voltage to a level corresponding to (lsp * (ntt - ltt)* 24)V above the fsp. Plant
voltage will be increased proportionally at any temperature between this point and the Battery Thermal
Slope Nominal Temperature (ntt).
Low Temperature Compensation Enable (rve): A 0 disables and 1 enables the Low Temperature Thermal
Compensation feature. Since rve increases plant voltage rather than decreasing it based on temperature,
the option is provided to disable it separately from the entire feature so that equipment loads sensitive to
high voltages can be protected.
Lower Temperature Slope (lsp): The slope rate for the voltage increase per cell when the battery
temperature is below the ntt (Battery Thermal Slope Nominal Temperature).
Battery Thermal Slope Nominal Temperature (ntt): The zero compensation temperature point.
Temperatures monitored between this point and the Upper Temperature Limit (utt) will result in a
proportional decrease of plant voltage to a level corresponding to (usp*(utt-ntt)*24)V below the fsp at the
utt. If Low Temperature Compensation is enabled, temperatures monitored between this point and the
Lower Thermal Limit (ltt) will result in a proportional increase of plant voltage to a level corresponding to
(lsp*(ntt-ltt)*24)V above the fsp at the ltt.