Absorption Time; Bulk Protection - Victron energy Quattro 48/5000/70 Manual De Instrucciones

Stand-alone / parallel operation / 2-3 phase setting
Using several devices, it is possible to:
- increase total inverter power (several devices in parallel)
- create a split-phase system (only for Quattro units with 120V output voltage)
- create a 3-phase system.
To this end, the devices must be mutually connected with RJ45 UTP cables. Standard device settings, however, are such that
each device operates in stand-alone operation. Reconfiguration of the devices is therefore required.
AES (Automatic Economy Switch)
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.
Search Mode
Instead of the AES mode, the search mode can also be chosen (with help of VEConfigure only).
If search mode is 'on', the power consumption in no-load operation is decreased by approx. 70%. In this mode the Quattro,
when operating in inverter mode, is switched off in case of no load or very low load, and switches on every two seconds for a
short period. If the output current exceeds a set level, the inverter will continue to operate. If not, the inverter will shut down
again.
The Search Mode "shut down" and "remain on" load levels can be set with VEConfigure.
The standard settings are:
Shut down: 40 Watt (linear load)
Turn on: 100 Watt (linear load)
Not adjustable with DIP switches. Applicable in stand-alone configuration only.
Ground relay (see appendix B)
With this relay (E) the neutral conductor of the AC output is grounded to the casing when the back feed safety relays in the AC-
in-1 and the AC-in-2 inputs are open. This ensures the correct operation of earth leakage circuit breakers in the outputs.
- 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.
- If required an external ground relay can be connected (for a split-phase system with a separate autotransformer).
See appendix A.
Charging characteristics
The standard setting is 'Four-stage adaptive with BatterySafe mode'. See Section 2 for a description.
This is the best charging characteristic. See the help files in the software configuration programs for other features.
'Fixed' mode can be selected with DIP switches.
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

This depends on the bulk time (adaptive charging characteristic), 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 charging characteristic, this determines
the maximum absorption time.
Storage voltage, Repeated Absorption Time, Absorption Repeat Interval
See Section 2. Not adjustable with DIP switches.

Bulk Protection

When this setting is 'on', the bulk charging time is limited to 10 hours. A longer charging time could indicate a system error (e.g.
a battery cell short-circuit). Not adjustable with DIP switches.
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