Siemens Sinamics S120 Function Manual page 18

Fundamental safety instructions
1.2 Fundamental safety instructions for Safety Integrated
Regulations from E N 60204-1
The Emergency Stop function must bring the machine to a standstill according to stop
category 0 or 1 (STO or SS1).
The machine must not restart automatically after EMERGENCY STOP.
When individual safety functions (Extended Functions) are deactivated, an automatic
restart is permitted under certain circumstances depending on the risk analysis (except
when Emergency Stop is reset). An automatic start is permitted when a protective door is
closed, for example.
S y stem power-up and drive activation after c hanging or replacing hardware and/or software
After hardware and/or software components have been modified or replaced, it is only
permissible for the system to run up and the drives to be activated with the protective
devices closed. Personnel shall not be present within the danger zone.
It may be necessary to carry out a partial or complete acceptance test or a simplified
functional test after having made certain changes or replacements.
Before personnel may re-enter the hazardous area, the drives should be tested to ensure
that they exhibit stable control behavior by briefly moving them in both the plus and minus
directions (+/–).
P lease note the following during s witch-on:
The Safety Integrated functions are only available and can only be selected after the
system has completely powered up.
Danger to life when the drive coasts down for an STO or STOP A
The category 0 stop function in accordance with EN 60204-1 (STO or STOP A to Safety
Integrated) means that the drives are not decelerated but instead coast to standstill (the
time required to coast to standstill depends on the kinetic energy).
• Carefully take this response into account when designing the protective door
• For safety without encoder, you must apply other measures to ensure that the protective
18
WA RNING
WA RNING
WA RNING
interlocking logic.
door remains locked until the drive has come to a standstill.
Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Safety Integrated