VEGA PLICSRADIO T62 Wireless emitting unit - Manual (Page 18)

18
5 Connecting to power supply
PLICSRADIO T62 • Wireless emitting unit (multiple channel)
32624-EN-130228
PLICSRADIO T62 offers connection options for max. three continu-
ous sensors and two switching instruments.
Individual instruments with switching output can be used. The output
can be a relay, NAMUR or transistor output (Open Collector)
Up to three HART sensors in multidrop mode can be connected to the
HART input (terminals 3/4) (input 1 … 3 corresponds to HART addr.
1 … 3). If in addition the 4 … 20 mA input (terminals 1/2) is used, only
two sensors can be operated on the HART input (HART addr. 1 … 2).
If HART addr. 3 is used and a current is detected on the 4 … 20 mA
input, a failure message is triggered.
Information:
Two-wire or four-wire instruments can be connected. In the menu you
can switch over between active (standard setting) and passive opera-
tion of the measuring data input. The connection assignment is the
same for both modes.
•
In active mode, PLICSRADIO T62 provides the voltage supply for
the connected sensors. This mode is for connection of pressure
transmitters without separate operating voltage (sensors in two-
wire version).
•
In the passive mode, the sensors are not powered - only the meas-
ured value is transmitted. This input is for sensors with their own,
separate operating voltage (sensors in four-wire version). On a
PLICSRADIO T62 in Ex version, the passive input is not available
for approval/technical reasons.
1
1 2
L
( + )
N
( - )
Fig. 11: Connection of the voltage supply in the electronics housing
1 Voltage supply
Digital inputs
Continuous inputs
Wiring plan, voltage sup-
ply in electronics housing