marposs P1 - Machine Logic I;O Connection

Instruction Manual
28
P1
– Instruction Manual
6.4 I/O connection to machine logic unit
Connect the I/O to the machine logic as shown in the following figures:
Use the connector provided to connect the I/O. The maximum power cable cross section compatible with this
connector is 0.5 mm
2
[
NOTE
The “SINK current” input is driven by a switch or limit switch connected between the input itself
and the positive pole of the machine I/O power supply. The SOURCE input is driven by a switch
or limit switch connected between the input itself and the negative pole of the machine I/O power
supply.
SOURCE current output /SINK current input connections
Figure 9 Example showing Source Current Output/Sink Current Input connections
I/O with SINK current inputs and SOURCE current outputs
Input circuits (SINK current 24 V d.c.)
I
I
(at 24 V)
7 mA typ.
V
I
(ON)
(15 - 30) V (I
I
= 4 - 10mA)
V
I
(OFF)
(−3 - 5) V
Output circuits (SOURCE current 24 V d.c.)
30 V d. c max.
I
O
(ON)
50mA max. with resistive load
Vdropout(ON)
3 V typ. (Io = 50 mA)
I
LEAKAGE
(OFF)
100µA max
[
NOTE
The SINK current type inputs connection features specifications that are compatible with the
"TYPE 1" digital inputs as defined in the Standard EN61131-2.