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AS-Interface Safety now included!
Folienthema/Folie 1/Jahreszahl
SAFETY AT WORK
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AS-Interface Safe - Headlines
Integration
of all binary safety-related components in AS-Interface,
such as:
Emergency stop
Protective door switch
Safety light barriers/grids
Contactor controls, etc.
operation of standard and safety-related components via the
yellow AS-i cable
Fail-safe
PLC or special master not necessary due to safety monitor
It is possible to form groups of safe signals within a network
Diagnostics via standard master/standard PLC
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Combined
Features of the system
Can
be used up to control category 4 according to EN 954 -1
Response
time max. 35 ms
Approved by BIA1 and TÜV2
Full
compatibility with all other AS components according to
EN 50 295
of the standard AS-Interface protocol
Maximum
Stop
extension of the system with 31 safe slaves
category 0 or 1 can be set
Compatable
with AS-Interface V2.1
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Use
Safety-related and standard components
in an AS-Interface network
Standard PLC and
standard master
Safety monitor
Standard
module
Safe
module
Safe light
grid
Safe
position switch
Safe light
barrier
Folienthema/Folie 4/Jahreszahl
AS-i
power unit
Safe emergency
stop button
Standard
module
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Safety Monitor
Monitor for monitoring safe slaves
1 or 2 two-channel enable circuit for safe switching
off
Several safety monitors in one AS-Interface
system are possible
Diagnostics via LED’s, configuration software and
AS-Interface/controls
Parameters can be set for the following functions:
Contactor control
Folienthema/Folie 5/Jahreszahl
Stop category 0 and 1
Restart inhibit
Local acknowledgement
Enabling switch
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Dynamic code tables guarantee
the transmission of safe data in AS-Interface
Safety monitor
Safety-related
slave
Folienthema/Folie 6/Jahreszahl
Standard PLC and
standard master
AS-i power unit
Master call
Slave responseExcellence in
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AS-Interface Safe guarantees
a maximum response time of 35 ms
35 ms
5 ms 5 ms 5 ms 5 ms
Max. uncertainty
until the start of a
complete cycle
Cycle time
Processing time
in the monitor
Relay switching
time
Cycle repeated
(an invalid code is
permitted once)
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15 ms
The output
of the safety
monitor
switches off
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The signal is
at the input
of the safe
slave
Circuit diagram:
safety monitor with one enable circuit
Enable ciruits
Signal circuit
On button optional
Feedback circuit
Folienthema/Folie 8/Jahreszahl
1.13/1.14
1.23/1.24
1.32
1.Y1
1.Y2
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Diagnostics via AS-i
With no address of the Safety-Monitor
„0000“ means Safety device OFF
„Code“ means Safety device ON
Disadvantages:- no Monitor failures are detected
- not all Device failures are detected
- no defined reason given for activation
The status of the monitor and all relevant devices can be transfered into
the PLC. A function block for the S7 is available.
Advantages: - detailed diagnostics including monitor failure, timing error
waiting for start, test neccessary, and slave address
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With an ASI address of the Safety-Monitor
LEDs
AS-Interface Safety Monitor
AS-i
L+24 V
L
K1
Meaning of Colors (1,2,3), Example
K3
Start
Start
K2
Ready
Waiting for Start
Test neccessary
open, close door
ON
all OK
Timer active
Stopcat. 1
OFF
Emergency Stop
pressed
Fault
only one channel of a
two channel device operated
correctly
K4
1.13 1.23 1.Y1
2.13 2.23 2.Y1
ASi+ ASi- 1.Y2
2.Y2
Leuze lumiflex
Siemens
AS-i
AUTO
CONFIG
SERVICE
1
2
2
1 READY
2 ON
3 OFF/FAULT
I
L+
M
1.14 1.24
K1
3
CONFIG II
K2
1.32
2.32
2.14 2.24
K3
K4
L+24 V
M/N
M
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3
1
Easy grouping of safety signals with AS-Interface
Safe
Standard-PLC and
standard-master
safety monitor
safety monitor
standard
moduel
Safe
emergency
stop button
Safe
emergency
stop button
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Safe
emergency
stop button
safe
module
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AS-i
power unit
What happens if ...
• ... the safety monitor is defective:
• The configuration data of the system is stored in the monitor and
if necessary can be directly transmitted to the new monitor. In
addition a safety check must be carried out, i.e. all safe
components must be actuated and their functioning checked by a
competent person.
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• ... a slave is defective:
• You can take an identical substitute slave. The safety monitor
accepts this as a substitute and internally adjusts to the new code
table. The safety protocol must be updated.
Can you ...
•... add a safe slave to an existing network?
•Yes! The monitor accepts additional safe slaves. The safety protocol
must then be updated.
•... run AS-Interface Safe under Version 2.1?
•All components of Safety at Work can be run under the extended AS-Interface
specification Version 2.1. Safe slaves are, however, always single slaves, as they
need a complete AS-Interface address. A mixed configuration is possible but you
must take into acccount that A and B addresses eliminate the full address from
your configuration table.
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•... remove safe slaves from an existing network?
•No! To prevent manipulation this is not possible. If a safe slave is removed, the
safety monitor switches off and will not switch on again until a new configuration
is down loaded into the monitor via a PC.
AS-Interface Safe can be configured
quickly and easily via Drag & Drop
Assignment of the slaves to the output
switching elements
Operating modes can be set:
Mode 1: Stop - Category 0 + 0
Mode 2: Stop - Category 0 + 1
Mode 3: Stop - Category 0
+ two-hand operation
Mode 4: Stop - Category 0
+ door latching
Downloading of the processed data with
password protection
Protection against manipulation of the
configuration data
Protocol of the configuration
In the case of error, monitoring of the
system status
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Available Devices
(placeable by
drag and drop to the
corresponding column)
Devices with no
direct accsess to
the safe output
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Devices with direct
access to the
safe output
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Folienthema/Folie 15/Jahreszahl
Configuration Software
Example: Configuration of an „OR“
1
2
3
5
6
Folienthema/Folie 16/Jahreszahl
4
1-6: configuration sequence
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The AS-Interface Safety concept is recognised by
TÜV and BIA
BIA : Berufsgenossenschaftliches Institut für Arbeitssicherheit
Excellence in
TÜV : Technischer Überwachungsverein
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AS-Interface Safe offers a wide range of products
Safety
modules for connecting standard sensors
Emergency
Position
Stop button for direct connection
switches for direct connection
Light
barriers for direct connection
Light
grids and light curtains for direct connection
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Safe
monitor with one or two two-channel enable circuits
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Compact Module K 45 F
safe input with
applications of category
3/4
2 safe inputs with
applications of category 2
If with applications of
category 2 only one input
is used, input 2 must be
bridged with a jumper
(MLFB......)
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1
Compact Module K 60 F
safe inputs with
applications of category 2
1 safe input with
applications of category
3/4
If with applications of
category 2 only one input
is used, input 2 must be
bridged with a jumper
(MLFB......)
In addition there are 2
non-safe standard
outputs
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2
SIGNUM 3SB3
AS-Interface Safe
Direct connection of safetyrelated switchgear to standard
AS-i
Emergency Stop control
device latches simultaneously
(EN418) with the positively
driven opening of the contact
elements (EN60947-5-1)
Folienthema/Folie 21/Jahreszahl
No conventional wiring
necessary
Approved up to category 4
according to EN954-1
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SIGUARD Light Curtains and Light Grids 3RG78
42 AS-Interface Safe
Safe direct connection to AS-Interface
Light curtains and light grids
type 4 according to EN, IEC 61496-1, 2
Category 4 according to EN 954-1
Light curtains with resolution 14, 30, 50
and 90 mm
2, 3 and 4-ray light grids
Folienthema/Folie 22/Jahreszahl
Protective field heights of 150 to 3000 mm
Max. distance 0.8 m-18 m
(0.3 m-6 m with 14 mm resolution,
60 m for light grids)
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