Bus Error / Safety Position Of The Solenoid Valves - Burkert 8681 Guide Rapide

Variants with multipole connection:
No internal cabling work is not required for the electrical installation
for variants with multipole connection (see chapter "13.2"). However,
you will require the correspondingly packaged or assembled cable
sets with the following pin assignment in accordance with Port
Class A or B:
Port Class A Pin Designation Assignment (IO-Link mode)
1 L+
2 DIO / 2L+
3 L-
4 Q/C
Port Class B Pin Designation Assignment (IO-Link mode)
1 L+
2 DIO / 2L+
3 L-
4 Q/C
5 2M
Variants with cable gland (without multipole connection):
The electrical installation for variants without multipole connection
is carried out as described in more detail in chapter "8.3 Electrical
installation (24 V DC)" on page 14 considering "Fig. 12" and the
pin assignments stated above.
Type 8681
IO-Link design
24 V DC
not connected
0 V (GND)
IO-Link
24 V DC (Power 1)
24 V DC (Power 2)
0 V (GND - Power 1)
IO-Link
0 V (GND - Power 2)
Connection
with status LED for
solenoid valve V1
Connection L+, L-
(Power 1)
Connections C/Q
and Power 2
büS service
interface (micro
USB connector)
Fig. 12: Electronic module (IO-Link)
An external initiator can be connected via a terminal strip - see
"Fig. 12" or Operating Instructions, chapter "Connecting an external
initiator".
13.5 Bus error / Safety position of the
solenoid valves
Bus failure or bus error are indicated via the central multi-colour device
status display (Top LED). Bus errors can be caused, for example, by
communication problems with the IO-Link master or PLC.
Safety position of the solenoid valves in the event of a bus error
If the bus fails, the solenoid valves are switched to a programmable
safety position (default: The solenoid valves are in the power-off
english
Teach-In
buttons T1-3
Connections
with status LED
for solenoid
valves V2, V3
Terminal strip for
external initiator
33