Burkert 8681 Démarrage Rapide page 9

Process data 2 static input assemblies
(Input: from the control head to the
DeviceNet Master/Scanner)
1 static output assembly
Inputs 3 discrete feedback signals of the posi-
tion measuring system (pos. S1 - S3)
1 discrete feedback signal of the
external initiators (S4)
1 analog position signal in mm
Supply via DeviceNet string
(11 to 25 V DC)
Switch level high signal  5 V
Switch level low signal  1,5 V
Outputs 3 solenoid valves
Power consumption
from the bus: max. 5 W, (3 valves with each 0,8 W)
11.3. Length of the Bus line
The maximum total line length (sum of trunk lines and drop
lines) of a network depends on the baud rate.
The maximum total line length (according to DeviceNet
specifi cation) is for:
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Input current 1 signal:
Input voltage 1 signal:
Input current 0 signal:
Input voltage 0 signal:
Inputs (from master perspective) / binary or analog
feedback signals:
The recovery of the 3 valve positions reported back binarily
or of the analog position signalis described in the manual,
chapter "Position Mesuring System".
Outputs (from master perspective) / solenoid valves:
max. switching capacity 1.0 W
typ. continuous output
Output reduction
pull-in current
Holding current
Operating mode
Valve types
Central display of the switching states:
Power consumption from
DeviceNet at 24 V DC
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All manuals and user guides at all-guides.com
I > 6.5 mA, limited
Sensor
internally to 10 mA
U > 10 V
Sensor
I < 4 mA
Sensor
U < 5 V
sensor
0.8 W
integrated via DeviceNet
interface electronics
120 mA typ. / 200 ms
(3 valves)
100 mA typ. at 24 V DC
(3 valves)
Long-term operation
(100 % operation)
6524
42 mA with 24 V DC power
Baud rate Thick Cable
125 500 m
250 250 m
500 100 m
The maximum drop line length is for:
Baud rate Drop Line
125 6 m
250 6 m
500 6 m
11.4. Electrical Data
Electrical power supply:
Max. power consumption: 200 mA at 24 V DC
Input / proximity switches (external initiator: S4 in):
Power supply:
Current carrying capacity
sensor power supply:
Short-circuit protection
Design:
11.5. Electrical Installation (DVN)
WARNING!
Risk of injury due to electrical shock!
• Before reaching into the system (except for the
Teach-In procedure in a non-explosive atmosphere)
switch off the power supply and secure it to prevent
restarting!
• Observe applicable accident prevention and safety
regulations for electrical equipment!
Risk of injury from improper installation!
• Installation may be carried out by authorized techni-
cians only and with the appropriate tools!
No internal cabling work is required for any of the Devi-
ceNet designs.
However, you will require the correspondingly assembled
cable sets with the pin assignments described below:
Type 8681
Thin Cable
100 m
100 m
100 m
Sum (in Network)
156 m
78 m
39 m
11 to 25 V DC (according to
specifi cation)
via DeviceNet power
supply - 10 %
max. 30 mA
DC 2- and 3-conductor,
NO contact, PNP output
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supply per illuminated display
shown; Color switching see
in the manual, chapter "LED -
Color Assignments"
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