Victron energy MultiPlus-II 48/3000/35-50 120V Manual página 15

5. CONFIGURATION
This section is intended mainly for stand-alone applications
For grid connected Energy Storage Systems (ESS) please see
Settings may only be changed by a qualified electrical engineer.
•
Read the instructions thoroughly before implementing changes.
•
• During setting of the charger, the AC input must be removed.
5.1 Standard settings: ready for use
On delivery, the MultiPlus-II is set to standard factory values. In general, these settings are suitable for single-unit operation.
Warning: Possibly, the standard battery charging voltage is not suitable for your batteries! Refer to the manufacturer's
documentation, or to your battery supplier!
Standard MultiPlus-II 2x120 V factory settings
Inverter frequency
Input frequency range
Input voltage range
Inverter voltage
Stand-alone / parallel / 3-phase
AES (Automatic Economy Switch)
Ground relay
Charger on/ off
Battery charge curve
Charging current
Battery type
Automatic equalisation charging
Absorption voltage
Absorption time
Float voltage
Storage voltage
Repeated absorption time
Absorption repeat interval
Bulk protection
AC input current limit
UPS feature
Dynamic current limiter
WeakAC
BoostFactor
Programmable relay
PowerAssist
5.2 Explanation of settings
Settings that are not self-explanatory are described briefly below. For further information, please refer to the help files in the software
configuration programs (see Section 5.3).
Inverter frequency
Output frequency if no AC is present at the input.
Adjustability: 50 Hz; 60 Hz
Input frequency range
Input frequency range accepted by the MultiPlus-II. The MultiPlus-II synchronises within this range with the AC input frequency. The
output frequency is then equal to the input frequency.
Adjustability: 45 – 65 Hz; 45 – 55 Hz; 55 – 65 Hz
Input voltage range
Voltage range accepted by the MultiPlus-II. The MultiPlus-II synchronises within this range with the AC input. The output voltage is then
equal to the input voltage.
Adjustability: Lower limit: 90 – 120 V
Upper limit: 120 – 140 V
Note: the standard lower limit setting of 90 V is intended for connection to a weak mains supply, or to a generator with unstable AC
output. This setting may result in a system shut down when connected to a "brushless, self excited, externally voltage regulated,
synchronous AC generator" (synchronous AVR generator). Most generators rated at 10 kVA or more are synchronous AVR generators.
The shut down is initiated when the generator is stopped and revs down while the AVR simultaneously "tries" to keep the output voltage
of the generator at 120 V
The solution is to increase the lower limit setting to 110 V (the output of AVR generators is generally very stable), or to disconnect the
MultiPlus-II from the generator when a generator stop signal is given (with help of an AC contactor installed in series with the generator).
https://www.victronenergy.com/live/ess:start
60 Hz
45 – 65 Hz
90 – 140 VAC
120 VAC
stand-alone
off
on
on
four-stage adaptive with BatterySafe mode
100 % of the maximum charging current
Victron Gel Deep Discharge (also suitable for Victron AGM Deep Discharge)
off
57,6 V
up to 8 hours (depending on bulk time)
55,2 V
52,8 V (not adjustable)
1 hour
7 days
on
50 A (= adjustable current limit for PowerControl and PowerAssist functions)
on
off
off
2
alarm function
on
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