INIM Electronics Previdia MAX IFM4IO Manuel D'installation page 7

Installation manual
2. Position the module in such a way that it is on level with the desired connector on the bar hen insert it in
place by pushing it carefully to the left.
3. Affix the module to one of the holes on the grounding bar using one of the supplied screws.
4. Complete the wiring on the internal module.
4 Wiring
Each of the 4 IN/OUT channels of the IFM4IO module (paragraph 2 - [C]) must be configured as:
• supervised output
• input
• conventional zone
• 4-20m gas input
Cables:
2 wire shielded cable
Proper section (minimum 0.5mm², maximum 2.5 mm²)
Compliant with local laws and regulations in force
Connection of polarized devices (sounders, etc.) to channels configured as outputs
Refer to Figure 1 - OUT - a, page 22.
The polarities refer to the active status of the output, the polarities invert for stand-by status.
Connection of non-polarized devices (relays, etc.) to channels configured as outputs
Refer to Figure 2 - OUT - b, page 22.
The polarities refer to the active status of the output, the polarities invert for stand-by status.
Connection of devices with an alarm output to channels configured as input
Refer to Figure 3 - IN - a, page 22.
The wiring diagram illustrates a connection made to one of the channels of the IFM4IO module [A], configured
as input. The connected device [B] is equipped with a normally open output for alarm signalling [C].
Connection of devices with alarm and fault outputs to channels configured as input
Refer to Figure 4 - IN - b, page 22.
The wiring diagram illustrates a connection made to one of the channels of the IFM4IO module [A], configured
as input. The connected device [B] is equipped with a normally closed fault signalling output [C] and a normally
open alarm signalling output [D].
Connection of devices with alarm, early warning and fault outputs to channels configured as input
Refer to Figure 5 - IN - c, page 22.
The wiring diagram illustrates a connection made to one of the channels of the IFM4IO module [A], configured
as input. The connected device [B] is equipped with a normally-closed fault signalling output [C], a normally-
open alarm signalling output [D] and a normally-open early warning signalling output [E].
Connection to channels configured as conventional line
Refer to Figure 6 - IN - conv, page 23.
Connection to channels configured as 4-20mA gas input
Refer to Figure 7 - IN - gas, page 23.
The wiring diagram illustrates a connection made to one of the channels of the IFM4IO module [A], configured
as gas output inclusive of a generic device with a 4-20mA output [B]powered from a 24V source [C].
Wiring 7