Siemens Simatic Manual page 18

Fail-safe function blocks for storage and retrieval machines. distributed safety/tia safety advanced.

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Table Of Contents

Table of Contents

Fail-safe function blocks for storage and retrieval machines

Requirements according to EN528:2008 Table C.2

Con-

secutive

Safety function

No..

Function to stop travel motion at

the end of a travel route (e.g. end

of the aisle), when the power fails,

for collisions, if more than one unit

is traveling on the same rails.

Function with additional brake and

velocity reduction, if the vehicle

must travel around curves with a

reduced velocity

Function of the additional brake

and velocity reduction, if the end

buffers are not configured so that

the unit can approach them with

at least 70 % of the rated velocity

Function to prevent the load and

the load suspension device from

colliding with the rack

Load suspension device –

interlocks

Load suspension device –

Interlocks

Load suspension device –

rack compartment occupied

Load suspension device –

load position monitoring

Function of control devices for

dangerous motion (manual open-

loop control)

Interlocking function with imple-

mentation devices

Function, which only permits a

slow velocity when a person is

located on the emergency control

station

Function to stop the unit when it is

necessary to gain access through

emergency exits and covers

S7-Distributed Safety/SIMATIC Safety - fail-safe function blocks for storage and retrieval machines

Covered by the ASRS

Section

5.5.1.1

Yes

5.5.1.2

5.5.3

5.5.1.2 a)

Yes

5.5.2

5.5.1.2 b)

Yes

5.5.2

5.4.6.6

Yes

5.6.2

5.6.3

5.6.5

5.6.7

5.6.8.2

5.10.7.1

5.6.5 a), b)

Yes

5.6.5 c)

Yes

5.6.5 d)