As-Interface; Connection Techniques; Fig. 2-9: As-I Interface; Fig. 2-10: Contacting The As-I Cables - Siemens Ecofast 3RK1 323-2AS54-1AA0 Manual

Wiring and interfaces
2.7

AS-Interface

2.7.1

Connection techniques

The following AS-i cables are used:
• Yellow AS-i cable for AS-i communication and non-switched 24 V DC auxiliary
power for supplying sensors and electronics
• Black AUX PWR AS-i cable for switched 24 V DC auxiliary power for supplying
actuators (PELV - must be grounded!).
Schematic arrangement
The diagram below shows the position and coding of the AS-i cables on the
motor starter:
Motor Starter
AS-i (+)
AS-i (–)
AUX PWR (+)
AUX PWR (–)

Fig. 2-9: AS-i interface

Contacting
The AS-i cables are contacted automatically using the insulation piercing
method when the AS-i cover is screwed on.

Fig. 2-10: Contacting the AS-i cables

2-14
AS-i cover
AS-i cover
AUX PWR
AS-i
AS-i cable
Communication and
non-switched auxiliary power
Switched auxiliary power
ECOFAST Motor Starters
GWA 4NEB 950 5221-12 DS 01