Terminal Connections - Burkert 8642 Instructions De Service

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4.2.1 Connections
Fig. 4: Connection diagram of the I/O Box type 8642

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!
NOTE
• 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
60
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.
I/O-Box Type 8642 Id. Nr. 142 791