Burkert Type 8645 - Manual (Page 67)

ConfiGuraTion anD funCTion of The moDules
English
8645 - 67
Electrical connections
Safety Precautions
cAuTION!
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.
Power supply M12
The 4-pin round plug for the power supply has the following pin assignments:
Electronics Inputs Outputs
24 V DC (1) Outputs
24 V DC (2)
Logik
GND ()
Logik
GND (4) Outputs
PIN 1
+24 V
driver (outputs)
PIN 4
GND
driver
PIN 2
+24 V
Logic
PIN
GND
Logic
Illustration: Power supply M12 - Fieldbus module DeviceNet
cAuTION!
The slots for bus and voltage supply can be confused.
If these slots are confused, you risk destroying the device.
Use only a 4-pin M12 connector for connecting the voltage supply.
NOTE!
• Protect pin 1 of the power supply with 4 A (medium time-lag) fuse and pin 2 with 1 A
(medium time-lag) fuse.
• In order to ensure the electromagnetic compatibility (EMC) , connect screw
terminal FE (functional earthing) to the earth potential with the shortest possible
cable (0 cm) .
deviceNet M12 Fieldbus connection
The M12 plug-in system is used for the fieldbus connection.
pin Allocation
pin No. Signal Meaning
1 Screen Screen or protective earth
2 n. c. Lines are looped through BUS IN to BUS OUT, Current bearing
capacity max. 4 A
GND Data transmission potential (refererence potential DeviceNet)
4 CAN High CAN High line
5 CAN Low CAN Low line
Thread Screen Screen or protective earth