Rev 6.3.0 12.09.16
PL Reference Manual
12
Name Description
Range
LOFF
Set voltage at which load
disconnects
10.0-12.5 V
LON
Set voltage at which load
reconnects
11.0-16.0 V
LDEL Set delay before
switching on/off
0-15 min
BATV
CHRG
LOAD
IN
OUT
DATA
SET
LINT LEXT
LSET Toggle low battery
LOFF Set voltage at which
L ON Set voltage at which
LDEL Set delay before
load disconnects
load reconnects
disconnect status on/off
switching
Fig. 3A - LOAD Menu
3
3.0 LOAD Menu
LOAD
The LOAD screen gives real-time total load
current (in Amps). This total is the sum
of load current being used by equipment
connected to the LOAD- terminal and any
external load current measured using an
optional shunt and PLS2.
LINT
From the LOAD screen, a long push displays
LINT (Load Internal). This is the real-time load
current being used by equipment connected to
the PL’s LOAD- terminal.
LEXT
From the LINT screen, a short push displays
LEXT (Load External). This is the real-time
external load current measured using an optional
shunt and PLS2.
Low Battery Disconnect
(LSET, LOFF, LON, LDEL)
To prevent battery damage due to over-
discharge, the PL has an internal function which
can be set to turn off either the LOAD- terminal
or the “G” terminal if the battery voltage falls too
low. (This feature is also sometimes referred to
as “Load Control”, LBD and LVD)
If correctly configured, equipment connected to
the battery (the “load’) will be turned off when
the LOAD- or “G” terminal is turned off. Once
turned off, the load will not be reconnected
until the voltage rises enough to indicate some
recharge has taken place.
This feature is optional, and can be disabled
either by connecting the user load directly to the
battery, or by setting the parameters to ensure
the low battery disconnect function never turns
on.
The LOAD indicator at the bottom of the screen
is visible when the low battery disconnect
function wants to disconnect the load. (Note
that other settings can override the function, so
the LOAD indicator does not necessarily mean
that the power actually has been disconnected
from the load.)
The Low Battery Disconnect function can also
be toggled manually by a long push when in LSET
menu (see Figure 3A).
The low battery disconnect function can be set
to use the LOAD- terminal, or the G (General
Purpose Output) terminal to disconnect the
load. Its operation can also be reversed, i.e.
it can turn on the terminal when the function
decides the load should be disconnected. This
can then be used as a low battery alarm or to
drive a relay to turn off other loads.
DO NOT CONNECT AN INVERTER OR
ANOTHER BATTERY TO THE LOAD-
TERMINAL(S). The terminal(s) are rated
at 20A on the PL20, 7A on the PL40, 30A
on the PL60 and 40A on the PL80. Most
inverters draw larger currents than this and
have their own low battery cut off circuitry
anyway.
