Electrical Installation (As-I) - Burkert 8681 Guide Rapide

9.5

Electrical installation (AS-i)

WARNING!
Risk of explosion in an explosive atmosphere (Zone 2)
` See DANGER note in chapter "8.3" on page 14!
Risk of injury due to electric shock!
` Before reaching into the system (except for the Teach-In pro-
cedure in a non-explosive atmosphere) switch off the power
supply and secure it to prevent restarting! Observe the appli-
cable accident prevention and safety regulations for electrical
equipment!
Risk of injury due to improper installation!
` Installation may only be carried out by authorised specialist
personnel and using the appropriate tools.
Internal cabling work is not required for variants with multipole con-
nection. However, you will require the correspondingly packaged or
assembled cable sets with the following pin assignments.
Pin 2
Pin 3
Fig. 6: Multipole connection AS-i
The jumpers on the electronic module must also be set accordingly
to the power supply of the solenoid valves (SV) – via AS-i bus or
externally – see "9.4" on page 17.
18
Pin 1
Pin 4
english
Type 8681
AS-I design
Power supply of the solenoid valves
(via AS-i)
Pin Assignment
1 AS-i+
2 not assigned
3 AS-i-
4 not assigned
An external initiator can be connected via the 3-way terminal
strip "INI" - see Operating Instructions, chapter "Connecting an
external initiator".
(external)
Assignment Colour
AS-i+ brown
GND white
AS-i- blue
24 V+ black