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AS-Interface Emergency-Stop Slave
Safety at Work
Preface
The AS-Interface Emergency stop slave is a safety slave for the
Fieldbus system AS-Interface (standard address mode). Up to 30 slaves
can be connected to one AS-Interface line; the 31st connection is a
safety monitor. The four inputs serve for the safe transmission of the
switching status of the E-STOP. The digital output*
control of external pilot lights, annunciators or for the illumination of
the E-Stop. It is not a safety-related output.
The AS-Interface E-STOP can only fulfill its safety function
acc. to the relevant standards in interaction with the
AS-Interface safety monitor!
The safety slave can be combined with different E-STOP actuators
(refer to "Models and Accessories"), which are operated by pushing
and reset by twisting the upper part. By the foolproof trigger function,
which is realised by power storing and a snap mechanism, the
switching-off function (open + latching) is proceeded in a defined
manner.
The AS-Interface E-STOP may only be used by persons
with the appropriate specialised knowledge. It is not
intended for sales to the general public.
A third contact*
in the slave ensures permanent monitoring and
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safety shutdown in case of unintentional separation of the E-STOP
actuator (patent applied).
Failure Probability according to IEC 61508
For calculating the failure probability of the whole system, the ASi slave
provides a component with the following characteristic numbers:
PFH:
1.03*10-10
PFD:
1.808 *10-5
Together with the failure probability of the other components used in the
safety system (e. g. safety monitor), the allover failure probability can be
determined. With the result computed from this, a classification into the
appropriate safety level can be made according to IEC61508.
Reliability Parameters according to EN ISO 13849-1
The parameters referred to the reliability acc. to EN ISO 13849-1 are as follows:
MTTFd: 100 years
DC
: 99 %
avg
Maintenance and Repair
It is recommended to activate the E-STOP at least once a year in order to
examine the proper function of the safety switching system.
As the annual maintenance means a safety-related procedure it
has to be carried out by the safety officer who is responsible for
the application.
Repairs, particularly the opening of the housing, may be made only by the
manufacturer or by a person authorised by the manufacturer.
Shutdown / Waste Disposal
When decommissioning the E-STOP must be dismantled / removed. The AS-
Interface E-STOP does not contain batteries, which would have to be
removed before disposal. Electronic trash is hazardous waste, so, please
consider the local regulations for disposal.
Connection Assignment
A+, A-:
Connection to the AS-Interface network
Using IDC technology, the connections are set up via the
2-pole connector (ref. no.: "ASI_SB2AWG18, ASI_SB2AWG22",
"ASI_K2"). The single conductors are pressed into the IDC
connector by means of the tool "ASI_MRT" (refer to the
accessories)
LED+, LED-:
Connection for digital output*
2-pole connector to connect an external pilot light, or for the illumination of
the E-Stop, via the connection cable (ref. no.: "VK_JST025BKL", "BK_JST034",
refer to the accessories).
For the output of the external connection a cable of 10 cm max.
length may be used. This cable may not be connected with
the GND of the plant.. *
Georg Schlegel GmbH & Co. KG
Kapellenweg 4
D-88525 Dürmentingen
can be used for the
1
SFF:
99.53 %
Category: 4
PL: e
1
1)
Tel.: 0 73 71 / 502 – 0
Fax: 0 73 71 / 502 – 49
e-mail: info@schlegel.biz
ASI_SAW16A, ASI_SAW16E
ASI_SAW22A, ASI_SAW22E
Starting Up
The AS-Interface E-STOP is being delivered with the address 0. Within the AS-
Interface network each standard slave must have an address from 1 to 31.
No address may occur more than once. Moreover, it is not permitted to
operate a standard slave and a slave with extended address mode with the
same address (e.g. slave 17 and slave 17A or 17B) in the same network.
Addressing with Adressing Device
Before installation in the AS-Interface netework the desired address is
adjusted by means of the addressing device which is connected via
the addressing cable "ASI_PK500M12" to the connections A+
and A- (refer to the description of the addressing device).
The optional addressing jack*
slaves (the slave is separated from the network).
Adressing via the AS-Interface Master
Optionally, the AS-Interface E-STOP can be connected to the AS-Interface
network and addressed accordingly via the AS-Interface Master (in the
configuration mode). It must be observed, however, that always one slave
with the address 0 is existing in the network.
Parameterising:
As the starting-up operation means a safety-related procedure
it has to be carried out by the safety officer who is responsible
for the application.
Installation of the Network
The AS-Interface network is a PELV network. The relevant rules for the
installation are to be considered.
Configuration of the Safety Network
The AS-Interface E-STOP can only fulfill its safety function acc. to the relevant
standards in interaction with the AS-Interface safety monitor. For starting up
the safety monitor must be configurated accordingly (please refer to the
operating instructions of the safety monitor). After installation a functional
check must be carried out.
Failure Probability on demand acc. to IEC61508
For the calculation of the failure probability of the whole system the AS-
Interface EMERGENCY-STOP slave supplies one component.
Technical Data
Communication
AS-Interface specification
SIL: 3
Slave profile
Standby delay time
Input delay
Connection
Ambient Conditions
Operating temperature:
Degree of protection:
Humidity:
max. vibration (temporary):
max. shock resistance:
Electrical Data
Operating voltage:
Total power consumption:
Reverse polarity protection:
Contacts:
Safety category/integr.level
Output (not safe):*
- rated voltage:
- max. current drain:
- short circuit/overload:
- connection cable:
Norms and Standards
AS-i certificates:
TÜV Type Approval Certificate:
Data Bits
Output *
2)
*
Data
(Interface
Bit
D0
*1) refers only to the types ASI_SAW16A, ASI_SAW22A
*2) refers only to the types ASI_SAW16A, ASI_SAW22A (with additional addressing jack)
SachNr.: BetrAnl_SAWxxx_E_V10_200828.doc
V10, 28.08.2020, Ref.No. 615408100
www.schlegel.biz
serves to address already integrated
2
is not intended.
V 3.0
ASI_SAWxxA
ASI_SAWxxE:
< 1s
< 5ms
Via 2-pole IDC connector
-25 ... +70 °C
IP20
max. 95%, non-condensing
1.5mm amplitude (10..55Hz)
10g
26.5...31.6 V, through the AS-
Interface line
ASI_SAWxxA:
ASI_SAWxxE:
available
Two positive opening contacts acc.
to IEC60947-5-5
Kat 4 / SIL 3 / PL e
For the control of a LED
1
24 V DC (+10%)
approx. 15mA
LED output
Ref.no.: VK_JST025BKL,VK_JST034
IEC62026-2:2008 modif., EN 60204-
1:2018, IEC61508-1:2010, EN ISO
13850:2015, DIN EN 60947-5-5:2017-
08,EN ISO 13849-1:2015
62801, 62802
available
1
Info
Data
state
Bit
3)
0
off
D0...D3
1
on
Seite 1 von 2
S-7.B.E
S-0.B.E
60 mA
50 mA
Inputs
Info
state
(Interface 3)
acc. to profile
S-7.B.E*
, S-0.B.E
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