EN
02/08/22
User Manual RPS/T 20kVA 62000587_02_
13
3.
NOTES FOR USERS
3.1.
SWITCHING ON
As soon as RPS switches on, through the switch placed on the control panel of the machine, it
makes different cycles of test. In case of bad working the test stops and the machine sends the
type of alarm checked (see at the voice alarms). When the test ends RPS is set to 0 Volt in the
range 300 Volt, 50 Hertz and regulation on the output terminals (2 WIRE). After the appearing of
these indications on the host control, RPS is ready to work.
Caution: The front switch is not a security switch, It opens only the three phase power line but
the neutral stays connected. High dangerous voltages remain inside the machine.
3.2.
RANGE SETTING
The ranges on RPS allow to make use of the full power output at different voltages.
The maximum output power changes according to the nature of the connected load; in case of
resistance loads the power is nominal, in case of pure inductive loads the power increases, in case
of pure capacity loads the power decreases.
There are two different ranges that you can manage with the output voltage of the external
transformer, you have not to make modify if you have 150V or 300V. Otherwise you have to
use TV on the sense connector
When the range is changed, the output voltage goes down slowly till zero, then the output power
is switched off; after about 15 seconds the output is switched on.
3.3.
FREQUENCY
The output frequency can have two references: the first one is a inner frequency reference with a
precision of 0.01%, the second one is the frequency line.
At turn on RPS is connected to the internal reference at 50Hz.
3.3.1.
Frequency setting
The output frequency of RPS/T can change between 10 and 80 Hz, under 50Hz there is a linear
limitation of the output voltage, to prevent the saturation of the output transformers
3.4.
MODE MENU
3.4.1.
Voltage reaction
The stabilization of the output voltage coincides both on the RPS/T output terminals (2-wires) and
on a possible long distance outlet (4-wires) to eliminate the fall in voltage influence of the
connections.
To operate the long-distance stabilization first connect the SENSE terminals on the back of the
machine following the indications at the voice INSTALLATION.