Siemens ISI EN 50295 Brochure page 124

AS-Interface Slaves
SIGNUM pushbuttons and indicator lights
AS-Interface customized enclosures
and front panel modules
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Overview
Customized solutions for linking command devices to
AS-Interface permit the configuration of command devices to be
selected as required. In addition to the enclosures, the AS-Inter-
face front panel module provides a solution for SIGNUM 3SB3
Command Devices mounted in front panels.
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AS-Interface front panel module
AS-Interface enclosure
6/124 Siemens IK PI · 2004
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Design
AS-Interface enclosure
The enclosures with two, three, four and six command points are
equipped with a 4I/4O slave. Up to four inputs (switch contacts)
and four outputs (lamp holders) can therefore be connected to
them. A second slave can be mounted on enclosures for four
and six command points. Addressing is via the AS-Interface
connections or via the built-in addressing socket. An external
supply voltage is not required.
For enclosures with EMERGENCY STOP, the EMERGENCY
STOP actuator can be wired conventionally or alternatively using
the AS-Interface F adaptor.
With conventional wiring, interrogation can be performed via AS-
Interface. In this case, a second slave cannot be mounted on the
enclosure for four command points.
In the case of conventional wiring of the EMERGENCY STOP, up
to three switch contacts can be selected for the EMERGENCY
STOP; if the EMERGENCY STOP is scanned via AS-Interface,
two contacts are possible.
If the EMERGENCY STOP is wired via the F adaptor, the safe
module is mounted above or to the right. The AS-Interface cable
is then looped through to supply the non-safe command devices
of the enclosure. EMERGENCY STOP via an F adaptor is only
possible for enclosures for three, four or six command points.
The following methods can be used for connecting the AS-Inter-
face cable:
• Terminal for shaped AS-Interface cable. Contact is made with
the cable using the insulation piercing method and it is routed
externally past the enclosure.
• Cable gland for the shaped AS-Interface cable or round cable.
The cable is inserted into the enclosure.
• Connection via M12 connectors
• In the case of enclosures with EMERGENCY-STOP via the AS-
Interface F adaptor, the cable is connected using the terminals
mounted on the F adaptor for the shaped AS-Interface cable.
The cable is routed externally past the enclosure.
Typical connections
If not all the inputs and outputs of the slave built into an enclo-
sure are used, the spare inputs and outputs can be routed to the
outside via an M12 socket at the top and bottom of the enclo-
sure. The pin assignment required for the M12 socket must then
be specified on the order supplement (see section Options).