Electrical Data; Safety Position If The Bus Fails - Burkert 8681 Operating Instructions Manual

12.4.

Electrical data

Connections:
"Multi-pole":
Power supply:
Max. power consumption:
Input / proximity switches (external initiator: S4 in):
Power supply:
Current carrying capacity sensor
supply:
Short-circuit protection
Design:
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 in binary format or the analog position signal is described in
Chapter "16" on page 75.
Outputs (from master perspective) / solenoid valves:
Max. switching capacity:
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:
12.5.

Safety position if the bus fails

If the bus fails, the solenoid valve is switched to a programmable safety position (default: solenoid valve not ener-
gized). For configuration data see Chapter "12.12.1. Configuration of the safety position of solenoid valves during
a bus error".
54
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 - connection option for external initiator
(sealed with dummy plug, remove these before use)
11 ... 25 V DC (according to specification)
200 mA at 24 V DC
via DeviceNet power supply - 10%
max. 30 mA
DC 2- and 3-wire,
Normally open contact, PNP output
I > 6.5 mA, limited internally to 10 mA
Sensor
U > 10 V
Sensor
I < 4 mA
Sensor
U < 5 V
Sensor
1.0 W (per solenoid valve)
0.6 W (per solenoid valve)
via DeviceNet interface - electronics integrated
120 mA typ. / 200 ms (3 valves)
100 mA typ. at 24 V DC (3 valves)
Long-term operation (100% ED)
6524
42 mA with a power supply of 24 V DC per illuminated display;
color switching see Chapter "17. LED Color Assignments" on page 81
English
Control Head Type 8681
DeviceNet-Design