User's Manual

Table Of Contents
Page 35
X75 SERIES - Mk3 Controller
INSTALLATION & OPERATING MANUAL
Manual No. x75mk3-11
x75-man-Rev11-0815.indd
The LVD tab is the set up and control for the system low voltage disconnect
contactors. The controller can control up to two contactors, but in X75 only LVD
1 is installed.
The controls are as follows:
LVD1willopenat. This is the system voltage which will cause the controller
open LVD 1. Typically this is used to disconnect batteries at the end of discharge
to avoid damaging them.
LVD1willcloseat. This is the system voltage above which the controller will
close LVD 1.
EnablebatteryovertemperatureLVD1latchoffcheckbox. If this box is checked
then LVD1 will latch off if a battery over temperature alarm condition occurs (set
up is in the alarm matrix applet). LVD1 will remain off even if the temperature falls
below the alarm off level. This helps to prevent battery thermal runaway.
LVD1Control. Select from Auto , On, Off. This will normally be set to Auto to
allow the controller to control the LVD using the On and Off voltage thresholds.
Selecting On will permanently turn on the LVD. Selecting Off will permanently
turn off the LVD. Note that the On setting is overridden by the over temperature
latch off function.
ResetLVDLatchoff. This button can be used to reset a system that has latched off
the LVD in the event of an over temperature condition. An administrator password
is required for this function. Be sure that it is safe to carry out this function before
doing so.
13.3.6-AnalogI/P- the X75 has no analog input connections.