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Subject to technical modififications; no responsibility is accepted for the accuracy of this information
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AS-i Safety Relay Output Module with Diagnostic Slave
1 EDM- and 2/1 safety inputs
Product Description
4.
Product Description
This chapter is intended to inform the reader about the special characteristics of
the AS-i Safety Relay Output Module with Diagnostic Slave. It describes the de-
sign and the functionality of the devices.
4.1
AS-i Safety at Work
AS-i Safety at Work combines safe and non-safe data on a bus system. The clas-
sification AS-i Safety at Work identifies the safe data transfer that enables the in-
tegration of safety procedures in an AS-i network.
The components of AS-i Safety at Work conform to EN 50295 and are compatible
with all other AS-i components. Therefore, existing AS-i applications can easily
be extended with safety-relevant functions.
AS-i Safety at Work always requires a Safety Monitor (as a stand-alone device or
integrated into a Gateway), that evaluates the safe signals on the bus, and a safe
AS-Interface bus connection, that enables the transfer of safe signals from safe-
ty-relevant components (AS-i SaW input).
Additionally, decentralized safe AS-I SaW outputs can be added. Controlled by
the Safety Monitor these outputs can be used to safely switch off safe actuators.
Several Safety Monitors and safe input and output slaves can be used on an
AS-i system. At the same time, the Safety Monitors can be parameterized and,
thus, be checked through AS-i and the configuration software.
In order to satisfy the requirements of these safety categories, all peripheral com-
ponents, for instance the Safety Monitors, all safe bus connections, and all con-
nected sensors must satisfy these standards.
4.1.1
Special characteristics of the AS-i Safety Output
•
2 series connected positive-opening relays
•
2 parallel connected galvanically isolated contacts sets
•
Connection option for 2 safety potential-free contacts. The contacts are mon-
itored for cross-connections
•
Inputs supplied by 24 V auxiliary voltage
•
Programming jack
•
2 switches for mode selection
Warning!
This chapter must be read before installation and operation of the device in conjunction
with other safety components on protected machinery.
Information!
By utilizing AS-i Safety at Work safety requirements up to category 4 according to
EN 954-1 and additionally performance level "e" according to EN 13 849 as well as SIL
3 according to EN 62 061 can be satisfied.
Summary of Contents for BWU2236
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