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AS Interface - Design
11.7. Electrical installation, AS interface
Internal cabling work is not required for any of the AS Interface designs with multi-pole connection, which makes
installation and start-up on site considerably easier and quicker, reducing the risk of leaks.
However, you will require the correspondingly assembled cable sets with the following pin assignments. Likewise,
the jumpers on the electronics module must be set correspondingly (see figures below).
NOTE!
Use of the control head in explosive atmosphere
• Only use cables and cable glands which are approved for the respective application area and fit the cable
glands according to the respective operating instructions!
• Close all unnecessary openings with lock screws/plugs approved for explosions area!
AS interface bus connection
(power supply via bus / external power supply)
M12 x 1 circular plug, 4-pole, male (according to IEC 61076-2-101)
(view onto the plug installed in the head, from the front onto the pins)
Pin 2: NC
Pin 3: ASI -
Pin 1: ASI +
Pin 4: NC
Bus connection
power supply via bus
Pin 2: GND
Pin 3: ASI -
Pin 1: ASI +
Pin 4: 24 V +
Bus connection
with external power supply
Fig. 19:
AS interface bus connection (power supply via bus / external power supply)
Pin
Configuration
(supply via bus)
Configuration
(external power supply)
Wire color
1
AS interface, ASI+
AS interface - ASI +
brown
2
Not used
GND
white
3
AS interface, ASI
-
AS interface - ASI
-
blue
4
Not used
24 V +
black
Power supply to the valves via the bus
External power supply to the valves
Jumper
Jumper
Fig. 20:
Jumper setting on AS interface electronics module: Power supply to the valves via the bus or externally
The cable with multi-pole connection variant is especially suited for direct and flexible connection to the AS interface
cable harness using the ribbon cable terminal that is optionally available.
english