EN
02/08/22
User Manual RPS/T 20kVA 62000587_02_
14
The choice of the kind of long-distance stabilization can be operated by means of the mode 4
wires and 2 wires at the voice SENSE.
Notice that RPS/T corrects falls in voltage on the connections until 5% of the set-up voltage to
avoid possible overheating of the line; after exceeding this limit RPS/T doesn
’
t guarantee that the
value of the output voltage is equal to the set-up voltage and an error signal appears (see at
voltage alarms).
3.4.2.
Output type
The present outputs are SINGLE-PHASE and THREE-PHASE, the SINGLE-PHASE output is available
only in the 3 single-phase transformers configuration.
The output power is variable with the type of the load, for resistive loads the output power is the
nominal power, for inductor load is greater than the nominal power, for capacitor load is less than
the nominal power. When the type of output is changed, the output voltage goes down slowly till
zero, then the output is switched off; after about 15 seconds the output is switched on again
Caution: The single phase configuration connects together the three phase output, so if you
select the single phase configuration there is voltage on the three phase output connectors.
3.4.3.
Output Relay
The command MOUT you can turn-on or turn-off the output relay. Before the turn-off, the output
voltage is set to 0V so the relay switch with low current. Also the turn-on is at 0V and after the
voltage goes to the setting value with an internal ramp.
The turn off of the output relay does not allow operations on the connection of the load because
is not a security disconnection.
3.4.4.
Continuous or INRUSH mode
It changes the limit of peak and rms current. The change is available while the machine is running
by remote.
3.5.
ALARMS
3.5.1.
Supply alarms
RPS/T can work with network voltage variations of
10%, if these limits are exceeded RPS/T stops
and the led concerning the occurred alarm blinks, in this case RPS/T can be unblocked by means of
the button HARDWARE RESET or switching off and switching on the machine.
If the network voltage is too low RPS/T stops and the alarm
UNDERVOLTAGE
is on.
If the network voltage is too high RPS/T stops and the alarm
OVERVOLTAGE
is on.