Installation and Programming manual
Functions and features
13
4.2
Controlling the outputs via the Inputs
Outputs OUT1, OUT2 and OUT3 are controlled respectively by inputs B1, B2 and B3.
The inputs are normally open (standby status), therefore, activation occurs when they are short-circuited
to GND.
4.3
How to use the power supply station
4.3.1
Stand-alone
In this operating mode the power-supply station is self-controlled, therefore, the outputs are managed via
the inputs. Fault conditions are signaled through the fault relay (FAULT output), which switches from
standby status to active status when faults occur.
4.3.2
Combined with an INIM Fire detection panel
There are two ways of connecting power supplies to INIM Fire detection panels, via:
• Loop connection
• RS485 BUS connection
Loop connection
This connection method allows the fire-defection panel to manage the power-supply outputs and fault
signals. The power-supply stations must be connected to the loop via one or more input/output modules
located inside the power supply station enclosure. The details of fault events can be viewed on the power
supply station display.
The following wiring diagram shows a loop connection using an input/output module of the INIM Electronics
ENEA series.
Figure 5 - Wiring diagram of a loop connection using a EM312SR module
Connecting the power supply station to an RS485 BUS
SmartLevel power-supply units are equipped with terminals which allow direct connection to the RS485
BUS of INIM fire detection panels. If any other devices are connected to the RS485 BUS, the power
supplies must be connected in parallel to them. The INIM fire detection panel will communicate with the
power supplies using a noise-immune communication protocol.
This connection method is designed to keep the control panel voltage isolated from the power-supply
station voltage.
The INIM fire-detection panel can enroll the power supply station, control its outputs as described in the
Table in paragraph
4.1 Controlling the Outputs
and monitor its status (output and fault status). For details
regarding the respective wiring refer to paragraph
7.2 RS485 BUS wiring
.
Note:
If the power supply station is the last device on the BUS, you must insert the jumper JP3 in the EOL
position.
RED
RED
ORANGE
GOLD
