EN / Mass Sine Ultra
8
3 OPERATION
The Mass Sine Ultra is a fully automatic inverter. It converts
a DC voltage to a pure AC sine wave voltage. Under normal
circumstances there is no need for adjustment or operation
besides switching on and off.
3.1
General
The inverter provides voltage and frequency regulated AC
power from a battery bank. Fast acting electronic circuits and
fuses protect the inverter against extreme overloads, low
and high battery voltage and overheating of the inverter.
A large momentary surge power is available for starting up
electric motors. High efficiency ensures long battery usage
between recharges. A built in energy saving feature can
reduce battery power consumption when no loads are
connected to the inverter.
3.2
Energy saving mode (selectable)
The Mass Sine Ultra has a built-in automatic energy saving
feature that reduces battery power consumption when no
load is present on the outputs. Response from idle is instant.
In most cases the operation is not noticeable. The energy
saving mode can be set by means of MasterBus or
dipswitch, refer to chapter 6, Configuration.
The Mass Sine Ultra scans the AC output with pulses of 230
V every 2½ seconds. When it detects a load that is larger
than 50 W (adjustable), it switches On the inverter
automatically. Small loads such as clocks in VCR’s or micro
waves are most likely not to work in this mode.
Figure 3-3: Front panel
3.3
Front panel
See figure 3-3. The operation of the Mass Sine Ultra is
controlled by the main On/Off switch and displayed by
means of LED indicators at the front side of the housing. If
the Mass Sine Ultra is activated and as long as none of the
red indicators are illuminated, no failure is detected and the
unit is operating normally.
3.3.1
AC Output LED
See figure 3-3 item 1. The illuminated arrow indicates that
AC Output is powered.
3.3.2
Power bar LED’s
See figure 3-3 item 2. Every LED indicates 20% of nominal
inverter power. If the upper LED illuminates red, the inverter
is in overload. On: inverting, Off: not inverting.
3.3.3
Switching On and Off
See figure 3-3 item 3. The only control on the Mass Sine
Ultra itself is the main switch on the front of the unit. This
switch controls inverter On and Off. Switching the main
switch or an optional remote control panel to the “ON”
position activates the Mass Sine Ultra. After switching On,
expect a three till five second delay before the unit is
activated.
With the main switch in position “On“, the Mass Sine Ultra
inverter can also be switched Off and On via MasterBus.
Move the main switch or the optional remote control panel to
the “Off” position to switch off the Mass Sine Ultra.
3.3.4
Battery LED
See figure 3-3 item 4. This LED illuminates red when the
voltage of the connected battery is too high or low.
3.4
Protections
The Mass Sine Ultra is protected against overload, short
circuit, overheating and under and over voltage. You can
detect failures from the front panel by means of the
indicators or from one of the (optional) remote control
panels.
CAUTION!
The Mass Sine Ultra is not protected against
reversing polarity of the DC-input, AC voltage on
the DC-input and extreme over voltage (>300
VAC ) on the AC-output.
1
AC Output LED,
section 3.3.1
2
Power bar LED’s,
section 3.3.2
3
Main switch On/Off,
section 3.3.3
4
Battery LED, section
3.3.4