Siemens ISI EN 50295 - Manual (Page 143)

Siemens IK PI · 2004 6/143
AS-Interface
Transmission media
AS-Interface shaped cable
6
■
Overview
The actuator-sensor interface, the networking system for the low-
est field level, is characterized by easy assembly and installa-
tion. A new connection technique has been specially developed
for the AS-Interface.
The network stations are interconnected via the the AS-Interface
cable. This two-core cable has a trapezoidal profile which pre-
vents polarity reversal.
Connection is made with the cable using the insulation penetra-
tion technique. Blade contacts penetrate the AS-Interface
shaped cable and make reliable contact with the two cores.
Cutting and stripping of cores is not necessary. This technique
allows AS-Interface stations (e.g. I/O modules, intelligent de-
vices) to be connected in the shortest possible time. Devices
can also be replaced in an instant.
The AS-Interface cable is offered in various materials (rubber,
TPE, PUR) to suit applications in a wide range of environmental
conditions (e.g. in an atmosphere saturated with oil particles).
It is also possible to use a round cable for special applications.
In the case of AS-Interface, data and a 24 V DC auxiliary supply
voltage can be connected for the sensors (e.g. BERO proximity
switches) and actuators (e.g. LEDs) via the yellow AS-Interface
cable.
For 24 V DC actuators (e.g. solenoid valves) that have a high
current requirement or that are integrated into EMERGENCY
STOP circuits, the black AS-Interface cable must be used.
■
Technical specifications
EPDM
(rubber) TPE
(special PVC compound) TPE special version
acc. to UL Class 2 PUR
(Polyurethane)
Operating temperature range
• Stationary in °C -40 to +85 -40 to +105 -30 to + 90 -50 to +90
• Moving in °C -25 to +85 -30 to +105 -20 to + 90 -50 to +90
Color of cores Brown, blue Brown, blue Brown, blue Brown, blue
Flexibility Very Good Good Good Good
Behavior in fire flammable flame-retardant acc. to
IEC 60332-1
VDE 0482 T. 265-2-1
UL 1581 sec. 1061 cable
flame
UL 1581 sec. 1060 CSA
FT1 flame-retardant acc. to
IEC 60332-1
VDE 0482 T. 265-2-1
UL 1581 sec. 1061 cable
flame
UL 1685 CSA FT4 flame-retardant acc. to
IEC 60332-1
VDE 0482 T. 265-2-1
Halogen-free (PVC-free) Yes No No Yes
Silicone emission free Yes Yes Yes Yes
Ozone and weather resistant Conditionally resisting Resisting Resisting Resisting
Oil resistance Conditionally resisting Resisting Resisting Resisting
Smallest permissible bending
radius acc. to DIN VDE 0298,
Part 300, in mm
• Fixed in place 12 12 12 12
• Flexible 24 24 24 24
$6,QWHUIDFH