Burkert Type 6521 - Handbuch (Seite 6)

Installation of Type 6521 EEx i Malfunctions in Type 6521 EEx i
r
FIBUS ®
common
such as
ally safe
ed using
Installation position: random;
Magnet system mounted in the upper
position prevents deposits settling in
the core chamber and increases the
service life
Before installation, clean the connecting fl ange and pipework
of any soiling
To protect against malfunctions use a dirt trap if necessary
Make certain that the performance data for the device
corresponds to the operating conditions!
Observe the pin assignment for pressure and exhaust air,
in particular the exception for the 3/2-way Namur version
(see table).
Electrical Connection of Type 6521 EEx i
Loosen both screws (1 and 2) on the terminal box
Connect the wires to the correct terminals on the terminal
block (the polarity is indicated on the housing)
WARNING!
All of the other screws in the terminal box may only
be accessed by authorised personnel.
Maintenance Type 6521 EEx i
In the event of malfunctions
Check Line connections
Working pressure
Power supply
The device
If the solenoid still does not pick up, the following could be
the cause:
- Short circuit
- Interruption in power supply
- Blown fuse in the device
- Core or core chamber soiling
WARNING!
Work on the valve may only be carried out by specialist
personnel using appropriate tools!
screws (1 and 2)
Terminal box
Flat fi llister-head
screws
The device is maintenance-free when operated under normal
conditions.
WARNING!
Pneumatic amplifi er and terminal box must not be
disassembled in the fi eld!
The valve may only be repaired in the factory!
ude
Pneumatic
amplifi er
Coding pen
Installation Electrical Connection Maintenance Malfunctions
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