User guide

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English



The system is live. Working on the unit involves acute risk of injury.
Always switch off the power supply before starting work!
Observe all applicable accident prevention and safety regulations for electrical equipment.

The 4-pin round plug for the power supply has the following pin assignment:
Electronics Electronics
Outputs
24 V DC (1) Outputs
24 V DC (2)
Logic
G
ND ()
Logic
GND (4) Outputs
PIN 1
+24 V
driver (outputs)
PIN 4
GND
driver
PIN 2
+24 V
Logic
P
IN 
GND
Logic
Illustration: Power supply M12 – Fieldbus module PROFIBUSPROFIBUS
®

• Protect pin 1 of the power supply with a 4 A (medium time-lag) fuse and pin 2 with a 1
A (medium time-lag) fuse.
• In order to ensure the electromagnetic compatibility (EMC) , connect screw termi-
nal FE (functional earthing) to earth potential using the shortest possible cable
(0 cm).

®
  
The M12 plug-in system is used for the fieldbus connection. In order to avoid confusion between bus and
power supply slot, use the reserve key encoding here.

  
1 VP Power supply plus (P5V)
2 RxDx/TxD-N Transmit / receive data N, A line
 DGND Data transmission potential (reference potential to VO)
4 RxDx/TxD-P Transmit / receive data P, B line
5 Screen Screen or protective earthing
Thread Screen Screen or protective earthing