PSI302P – Instalation and Maintenance Manual
5
PSI302P-4
: Eight terminals (3A to 10A) to implementation of 4 independent Fieldbus channels and a Dip Switch with 4
switches for interlinked of the internal terminador of the
PSI302P-4
. The
Figure 4
shows a layout of device; to verify
that 4 Leds of flaw exists, one for each
PSI302P
.
PSI302P-2
: Four terminals (3A to 6A) to implementation of 2 independent Fieldbus channels and a Dip Switch with 2
switches for interlinked of the internal terminador of the
PSI302P-2
. The
Figure 3
shows a layout of device; to verify
that 2 Leds of flaw exists, one for each
PSI302P
.
Obs:
So much for the model
PSI302P-2
as for the
PSI302P-4
, the terminals and Dip Switch they are the same, even
so for the model PSI302-2 only the connections are enabled for 2 channels. The key 1 in the position ON enables the
internal terminator (BT302) for the channel 1.
The energization indication LED is of green color, should be energized while there is external 24 Vdc power supply and
the overcurrent indication LED it is red color, being just activated when it happens current excess due to short circuit in
the plant or excess of connected equipaments.
INSTALLATION
The
PSI302P –
Fieldbus Power Supply Impedance is a device specially designed for panel installation and it can not
be installed in unshetered locations, as it can not be exposed to the weather.
Due to its great thermal dissipation capacity, the device may be installed in environments where the maximum
temperature reaches up to 50 °C, without requiring cooloing facilities. Connections to the panel may be done directly
by means of screws and nuts, or by means of a DIN rail in supports supplied with the device.
It can be fixed, the
PSI302P
through the rack or for the auxiliary support (optional)(Fig. 5) with the device:
Fig 5 – Dimensional Drawing
To fixing the
PSI302P
through the rack::
1- To fix the rack in DIN rail or directly by means of screws;
2- It fits for
PSI302P
in the rack.
To fixing the
PSI302P
through the auxiliary support::
3- To fix the supplied suports directly by means of screws;
4- It fits for
PSI302P
in the auxiliary support.
MAINTENANCE
The
PSI302P -
Fieldbus Power Supply Impedance is a rugged device wich practcally requires no type of preventive
maintenace. It is simply recommended to protect it from excessive dust accumulation and from excessively humid
environments wich might affects its output impedance.
