Burkert Type 8642 - Manual (Page 2)

tended purpose
rve the notes in these operating instructions
the conditions of use and permitted data that are
the rating plate in order that the device will
ectly and remain operable for a long time.
r-vance of these notes and unauthorized
with the device, we will refuse all liability and the
device and accessories will become void!
serves exclusively to drive process valves of
nd 6521 NAMUR. Any different use or use going
s considered improper use. Bürkert is not liable
resulting from such use. The risk is carried solely
STRUCTIONS TECHNICAL DATA
Technical data
INSTALLATION AND COMMISSIONING
Installation and Commissioning
INSTALLATION AND COMMISSIONING INSTALLATION AND COMMISSIONING
Measures to be taken before installation Terminal connections
Electrical connection
ription
and operation in potentially explosive environments,
evant national regulations. (in Germany: VDE 0165)
ves exclusively to drive process valves of types
NAMUR
ur type 6520/6521valves (PTB n° Ex-97.D.2089x)
of two sensors per valve (see table)
nce to the sensors and valves shall be not more than
ax. cable length of 30 m.
ed cable for connecting the sensors and valves.
he screening must be connected, e.g. at the front
using.
e capacity and inductance are specified in the
ficate. Please observe the instructions of the
tificate PTB Nr. EX-97.D.2089X for the supply of the
ormation regarding the operation and installation of
6520) valve can be found in the operating
these valves.
pection Certificates are to be found in the Operating
the CD.
We reserve the right to make technical changes without notice!
Preferred fitting position: Attachment screws pointing
downwards!
If EMV screwed fittings are used, position the screens
according to manufacturer's instructions!
On using a Weidmüller plugged connector for PROFIBUS PA,
the following configuration applies:
Positioning dimensions
n.c.
A S
B
On the front panel threads to M20 and M16 are provided; on
the side a thread to M16.
The terminals may only be removed when not under voltage!
The front panel is designed for a maximum of 5 changes.
The fixing screws of the front panel may be tightened with a
maximum of 1.5 Nm.
View onto pin base and pins:
Check the connections, voltage and operating pressure!
Ensure that the max. operating data (see name plate) is not
exceeded!
This device complies with the European Community EMC
guideline No. 89/336/EWG.
Observe the installation instructions in order to fulfil the
regulations of this guideline. Connect the screw terminal
TE (technical earth) to the earth potential using a cable that
is as short as possible, or take suitable measures to
prevent undesired electro-magnetic interference affecting
the device.
Connecting cable for TE (technical earth):
- minimal diameter: 2.5 mm²
- maximum length: 30 cm
Fig.: I/O-Box Type 8642 NAMUR with PROFIBUS PA circuit
Pin Colour PROFIBUS PA
A blue PA-
S black screen
B brown PA+
n.c. not connected
Terminals A (exit) and
E (entry):
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.
Field bus interface according to IEC 1158-2
Communication device following the FISCO model
Electrical data
Permitted operating voltage 9 - 24 V
Permitted operating voltage,
intrinsically safe: referring to power
supply device with
– trapezoidal characteristic curve
– linear characteristic curve
9 - 15 V
9 - 17,5 V
Operating current 16.5 mA ± 6 %
Maximum current in case of a fault < 22.5 mA
max. permissible power of the
power supply with intrinsically safe
bus supply
2 W
Operating conditions
Permissible temperature range -25 to 60 °C
Climatic test
DIN IEC Part 2 - 38
exposure 10 cycles à 24 h
Insulation class 3
Protection class of housing
IP 65
(when using corres-
ponding screwed fittings)
Explosion protection to
EN 50020 and EN 50014
II 2 (1) G EEx ia IIC T6
Conditions of the EMC law fulfilled
Resistance to interference EN 50052-2
Transmitted interference EN 50081-2