L0520
RH0271.001
23/24
ABB SACE
SACE PR212
3.2. User interface
In its front part, the unit has three pushbuttons, four LEDs and two terminal boxes.
3.2.1. Optic signals
·
The signals indicated in the table are intended with Vaux present
·
For further details regarding possible malfunctioning conditions see par.3.4
3.2.2. Terminal boxes
·
Connections 1 18
: inputs and outputs of the PR212/T unit (see par.3.3.2)
3.3. Putting into service
3.3.1.
Assembly instructions
Assembly on standard 35 mm guide (DIN EN50022 type TS 35 x 15mm).
For the front removable connectors, use cables with wire cross-section between 0.5 and 2.5
mm
2
(AWG 22 ... 12).
Earthing of the metallic enclosure must be carried out by means of connection, with 4 mm
2
cross-section wire with eyelet terminal, to the special M4 screw located on the rear of
the enclosure itself.
Special earthing terminals are available on the front connectors, to connect the electronic
circuit to the installation earth. These terminals must not be connected to the earthing
screw of the metallic box.
Dielectric Resistance tests are not allowed on the inputs and outputs of the PR212/T. For
further information (positioning of the communication device, maximum distance from
the circuit-breaker ), please consult the documents mentioned in par.1.
