Electrical data, Safety position if the bus fails, Electrical data 12.4 – Burkert Type 8681 User Manual
Page 49: Safety position if the bus fails 12.5
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DeviceNet - Design
electrical data
12.4.
connections:
"Multi-pole"
1 x M16 x 1.5 cable gland / SW22 with multi-pole connection
(M12 plug according to IEC 61076-2-101, 5-pole on a cable of 80 cm
length ) for DeviceNet bus and power supply
1 x M16 x 1.5 cable gland / SW19 for external initiator
clamping area 3 to6 mm, with dummy plugs
with screw terminals for cable cross-sections 0.14 to 1.5 mm²
electrical power supply:
11 to 25 V DC (according to specification)
Max. power consumption:
200 mA at 24 V DC
input / proximity switches (external initiator: s4 in):
Power supply:
via DeviceNet power supply - 10 %
Current carrying capacity sensor
power supply:
max. 30 mA
Short-circuit protection
Design:
DC 2- and 3-conductor,
Normally open contact, PNP output
Input current 1 signal:
I
Sensor
> 6.5 mA, limited internally to 10 mA
Input voltage 1 signal:
U
Sensor
> 10 V
Input current 0 signal:
I
Sensor
< 4 mA
Input voltage 0 signal:
U
sensor
< 5 V
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
chapter
15. Position Measuring System.
Outputs (from master perspective) / solenoid valves:
max. switching capacity
1.0 W
typ. continuous output
0.8 W
Output reduction
via DeviceNet interface - electronics integrated
pull-in current
120 mA typ. / 200 ms (3 valves)
Holding current
100 mA typ. at 24 V DC (3 valves)
Operating mode
Long-term operation (100 % ED)
Valve types
6524
central display of the switching states:
Power consumption from DeviceNet
at 24 V DC
42 mA with 24 V DC power supply per illuminated display shown;
Color switching see chapter
safety position if the Bus fails
12.5.
If the bus fails, the solenoid valve is switched to a programmable safety position (default: solenoid valve is in power-
off-state). For configuration data see chapter "
12.12.1. Configuration of the Safety Position of Solenoid Valves if
english
Control Head Type 8681