Moeller Marine XI/OC SIGNAL MODULES 05/02 AWB2725-1452GB User Manual

05/02 AWB2725-1452GB

The spring-loaded terminal block has the same basic design as the 
screw terminal block. The difference lies in the way the cable is 
connected.

Table 3:

Cable connection

• The diodes that are connected in antiparallel to the input 

circuits of the module enable operation of the inputs from either 
+24 V DC or –24 V DC (see „Internal circuit“ on Page 24).

• When an ON signal is applied to all inputs, the current drawn 

via the input contacts is typically 6.9 mA (XIOC-8DI) or 4 mA 
(XIOC-16DI).

• Sensors, such as proximity sensors or photoelectric switches, 

can be directly attached, provided that they are current-sinking 
types (open-collector). Sensors that have a voltage output must 
be connected to the inputs via transistors.

• Use cables with a maximum length of 30 metres.

Figure 9:

Wiring up the screw terminal block

h

Please observe the following notes:

• All terminals have M3 screws.
• Tighten up the screws to a torque of 0.49 to 0.78 Nm.
• If cable lugs are to be used, then they must have a 

maximum outside diameter of 6 mm.

• Do not attach more than 2 cable lugs to one terminal.
• Use a cable with a maximum conductor cross-section 

of 0.75 mm

2

, or 0.5 mm

2 

if two cable lugs are going to 

be fixed to the same terminal.

solid core

0.5 to 2.5 mm

2

0.34 to 1.0 mm

2

stranded, with 
bootlace ferrule

0.5 to 1.5 mm

2

0.14 to 1.0 mm

2

Figure 10:

Example of external wiring for the DC input XIOC-8DI/
16DI (here 16 DI)

a Proximity switch

24 V 

H

a

1

2

3

4

7

C