Victron energy MultiPlus Compact 12/2000/80-50 120V Manual page 19

AES (Automatic Economy Switch)
Instead of the search mode, the AES can also be chosen (with help of
VEConfigure only).
If this setting is turned 'on', the power consumption in no-load operation and with
low loads is decreased by approx. 20%, by slightly 'narrowing' the sinusoidal
voltage. Not adjustable with DIP switches. Applicable in stand-alone configuration
only.
Ground relay (see appendix B)
With this relay (H), the neutral conductor of the AC output is grounded to the
chassis when the back-feed safety relay is open. This ensures the correct
operation of earth leakage circuit breakers in the output.
If a non-grounded output is required during inverter operation, this function must be turned
off. (See also Section 4.5)
Not adjustable with DIP switches.
Battery charge curve
The standard setting is 'Four-stage adaptive with BatterySafe mode'. See Section 2 for a
description.
This is the recommended charge curve. See the help files in the software configuration
programs for other features.
Battery type
The standard setting is the most suitable for Victron Gel Deep Discharge, Gel Exide A200,
and tubular plate stationary batteries (OPzS). This setting can also be used for many other
batteries: e.g. Victron AGM Deep Discharge and other AGM batteries, and many types of
flat-plate open batteries. Four charging voltages can be set with DIP switches.
Automatic equalisation charging
This setting is intended for tubular plate traction batteries. During absorption the voltage limit
increases to 2,83V/cell (34V for a 24V battery) once the charge current has tapered down to
less than 10% of the set maximum current.
Not adjustable with DIP switches.
See 'tubular plate traction battery charge curve' in VEConfigure.
Absorption time
The absortion time depends on the bulk time (adaptive charge curve), so that the battery is
optimally charged. If the 'fixed' charging characteristic is selected, the absorption time is
fixed. For most batteries, a maximum absorption time of eight hours is suitable. If an extra
high absorption voltage is selected for rapid charging (only possible for open, flooded
batteries!), four hours is preferable. With DIP switches, a time of eight or four hours can be
set. For the adaptive charge curve, this determines the maximum absorption time.
Storage voltage, Repeated Absorption Time, Absorption Repeat Interval
See Section 2. Not adjustable with DIP switches.