Curtis 1236SE User Manual

Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
65
24 NOVEMBER 2015
BDI Algorithm
e BDI (battery discharge indicator) algorithm continuously calculates
the battery state-of-charge whenever KSI is on. e result of the BDI algo-
rithm is the variable BDI Percentage, which is viewable in the programmer’s
Monitor » Battery menu. When KSI is turned o, the present BDI Percentage
is stored in nonvolatile memory.
e standard values for volts per cell are as follows, for ooded lead
acid and sealed maintenance-free batteries.
battery type
flooded sealed
Reset Volts Per Cell 2.09 2.09
Full Volts Per Cell 2.04 2.04
Empty Volts Per Cell 1.73 1.90
Use the standard values for your type of batteries as the starting point in
setting the reset, full, and empty volts-per-cell parameters.
3 — PROGRAMMABLE PARAMETERS: Battery Parameters
BATTERY MENU, cont’d
ALLOWABLE
PARAMETER RANGE DESCRIPTION
User Overvoltage 105 – 200 % The value of this parameter is a percentage of the Nominal Voltage setting.
User_Overvoltage 269 – 512 The User Overvoltage parameter can be used to adjust the overvoltage threshold,
0x3049 0x00 which is the voltage at which the controller will cut back regen braking to prevent
damage to the electrical system.
Typically this parameter is changed only when the controller is being used in
anapplicationatthelowendofthecontroller’srange:suchas
a 48–80V controller being used in a system with a 48V battery pack. In this case,
the overvoltage threshold can be raised by setting the User Overvoltage to a
highervalue.Theovervoltagethresholdcanneverberaisedabovethecontroller’s
power base maximum voltage rating.
User Undervoltage
0 – 95 % The value of this parameter is a percentage of the Nominal Voltage setting.
User_Undervoltage 0 – 242 The User Undervoltage parameter can be used to adjust the undervoltage threshold,
0x304A 0x00 which is the voltage at which the controller will cut back drive current to prevent
damage to the electrical system.
Typically this parameter is changed only when the controller is being used in
anapplicationatthehighendofthecontroller’srange:suchasa24–36Vcontroller
being used in a system with a 36V battery pack. In this case, the undervoltage
threshold can be lowered by setting the User Undervoltage to a lower value. The
undervoltagethresholdcanneverbeloweredbelowthecontroller’spowerbase
minimum voltage rating.

Curtis 1236SE Specifications

General

Brand	Curtis
Model	1236SE
Category	Controller
Language	English