FAST-PS-M – User’s Manual
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Table 4:
FAST-PS Output Power
where
P
N
is the rated nominal output power of the power supply unit, as
indicated in the technical specifications.
DCCT Not OK
The current transducer which is acting as the sensor unit for the feedback digital
loop is constantly monitored and if any problem in connections is recognized, this fault
will arise turning off the power supply.
OVerTemperature - OVT
Internal monitoring of temperature is performed in different places inside the
FAST-PS-M power supply. If a pre-defined threshold is exceeded by any of these
internal sensors, an OVT condition is generated, thus shutting off the power unit.
The threshold value [°C] can be set by experienced users. A reset fault operation
needs to be executed on the status register of the FAST-PS-M before turning the output
off again.
DC-Link Undervoltage
The FAST-PS-M is composed internally by a power AC-DC section cascaded
with a DC-DC stage. The voltage generated by the AC-DC section is also called DC-
Link and it is proportional to the maximum rated voltage for the specific model. Usually
the DC-Link voltage is about 20% higher than the rated output of the FAST-PS-M.
A continuous monitoring of the DC-Link voltage is performed in order to
always guarantee the capability of obtaining the maximum voltage from the power
supply. If the DC-Link drops below a certain threshold, the power supply unit could not
be able to regulate correctly or some faulty conditions have arisen so that a fault
conditions is generated.
It is necessary to reset the status register and to get rid of the fault cause before
turning the power supply back on again.
2.5
Waveform
The FAST-PS is able to act as a waveform generator both in current and in
voltage regulation modes.