Mastervolt AC Power Analyser Betriebsanleitung Seite 6

HOW IT WORKS
3 HOW IT WORKS
The AC Power Analyser is an AC measuring device
that sends the data to the MasterBus network for
monitoring, control and alarm functions. It is able to
switch a relay and to communicate with an inverter.
During first MasterBus set up, there is a choice
between three modes to use the AC Power Analyser:
1. Shore power,
2. Generator power,
3. Inverter power.
Depending on the mode, the AC Power Analyser
shows a selection of next measurements
(chapter 6 shows an overview of the measurements
for each mode):
• AC voltage
• AC current (by means of a separate current coil,
included!)
• Frequency
• Power (VA)
• Cos phi
• MasterBus voltage (V), after login
• Device temperature (°C), after login
• Generator power factor, in generator mode after login
• Generator power (W), in generator mode after login
• Inverter power factor, in inverter mode after login
• Inverter power (W), in inverter mode after login
6
Measurements are performed this way, using the AC
Power Analyser:
• The AC voltage is measured via the first connector
(refer to figure 1, point 1);
• The AC current is measured indirectly via a current
coil (figure 1, point 2). The number of primary
coil windings (ratio) is selectable in MasterBus
configuration (refer to section 6.1);
• A maximum 5A 250V relay can be controlled via the
potential free contact (see point 3 in figure 1 and 10);
• An RJ12 connector (figure 1, point 4 ) ensures
communication with your Mass Sine inverter;
• Two MasterBus connectors (figure 1, point 5) ensure
communication with other MasterBus equipment, for
example your monitoring displays.
February 2011 / AC Power Analyser / EN