Burkert Type 8642 - Manual (Page 13)

8642/142 791 - 11
english
Terminal connections
• Terminals A and E:
Connection for the PROFIBUS-PA field bus
Any polarity can be used between terminal 1 and 2
Max. permissible torque for the bus connections (Weidmüller): 5 Nm
• Terminals with designation Valve 1 to Valve 4
Connection of the Bürkert piezo-valve Type 6115 (6520)
Observe the polarity!
• Terminals with designation Sensor 1.1 to Sensor 4.2
Connection of the above-mentioned sensors
Observe the polarity!
• Two sensors are allocated to each valve.
Sensor messages:
- limit position of the connected process valve
- other values
NOTE Please observe the instructions of the Conformity Certificate
PTB No. EX-97.D.2089X for the supply of the valve. More
information regarding the operation and installation of the Type
6115 (6520) valve can be found in the operating instructions
for these valves.
4.2.1 Connections
Fig. 4: Connection diagram of the I/O Box type 8642