Configuration and Connection Examples
12.2010
6SE7087-6QX70 (Version AM) Siemens AG
2-26
Compendium Motion Control
SIMOVERT MASTERDRIVES
2.4.5 Application
examples
The basic principle of the safety-oriented circuit is essentially identical
on all MASTERDRIVES units. However, the terminal designations and
connection locations may differ according to the unit type. The circuit
examples given below can be adapted for application on all types of
MASTERDRIVES converter. The specifications for performance level
verification can remain valid.
Power contactors with mirror contacts and contactor relays with
positively driven contacts are employed in the examples below. In the
interests of simplicity, the mirror contacts of the power contactors are
referred to throughout as "positively driven" contacts.
2.4.5.1
Emergency Stop on a converter
→
STO
The drive must be switched off safely by the supplementary safety
function Emergency Stop.
The Emergency Stop button is actuated 1x per month.
As a result of the risk assessment, the required performance level for
the safety function has been defined as PLr = d.
Requirement
Assumption
