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English safety setting for bus failure, Electrical connection – Burkert Type 1066 User Manual

Page 27

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1066 - 25

I

NSTALLATION

AND

C

OMMISSIONING

english

Safety setting for bus failure

In case of a bus failure, the setting of the last data byte of the bus outputs will be retained as long as
power is connected.

Drop line lengths

Electrical connection

The bus line is a 4-pole cable with an additional screen that must correspond to the DeviceNet
specifications and over which both information (data) and power (power supply for the low-power actuators
and sensors) will be transmitted.

Bus connection (round plug M12, 5-pole)

Plug viewed from the front looking at the pins (not at the solder side).

The Type 1066 control head has a 5-pole Micro-style M12 round plug. The following pin configuration
corresponds to the DeviceNet specification:

Termination circuit for DeviceNet systems

When installing a DeviceNet system, attention must be paid to the correct termination circuit for the data
lines. This circuit prevents interference arising from signal reflection on the data lines. The main line must
therefore be terminated as both ends, as shown, with resistors of 120

Ω with 1/4 W power rating.

Baud rate

Maximum length of a drop line

Max. accumulated length in the network

125 kBaud

6 m

156 m

250 kBaud

6 m

78 m

500 kBaud

6 m

39 m

Pin

Signal

Colour

1

Screen

not used

2

V+

red

3

V-

black

4

CAN_H

white

5

CAN_L

blue

CAN_H
white

Data
lines

CAN_L
blue

Drain (screen)
not used

V-
black

V+
red

Voltage supply
11 ... 25 V DC

max. power 5 W, if all
valves switched
(3 x Type 6510 with 1 W each)