Motor Power Company DUET_FL 48/10, User Manual

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Page 185
EMERGENCY OFF / EMERGENCY STOP wiring examples
Figure 8 on the next page shows a realization example for a system that comprises one or several
DUET_FL units, power supply units with a mains power connection, a control system and switching
elements to realize the EMERGENCY STOP function in accordance with EN 60204-1, stop category 1.
The system comprises the following components:
S1 Mains power switch
F1 Fuse for the 24 V logic supply
The logic supply is supplied with 230 V AC on the primary side through L1
and
N.
Q1 3-phase circuit breaker. The rating depends on the number of DUET_FL units and
on the requirements of the power supply unit.
K1 Power contactor
F2 Fuse in the +48 V power stage supply system. Every DUET_FL needs a separate
fuse.
ECS EMERGENCY STOP switching device. A safety chain is connected to this
device.
PLC An SPC or an industrial PC that is used to control the system.
Under normal operating conditions, the switching contacts in the ECS are closed. The SPC actuates
the power contactor K1 through a digital output.
Every DUET_FL unit signals to the SPC that it is ready for operation via DOUT0. Thus, every
DUET_FL unit requires one digital input at the SPC. The SPC uses a second digital output to control
the controller enabling signal DIN9 of all the connected DUET_FL units. This common enabling signal
is also fed through the ECS. In the event of an error (EMERGENCY OFF, EMERGENCY STOP), the
intermediate circuit supply and the controller enabling signal will be disconnected.
The selection of a suitable ECS depends on the actual application. In the simplest case, no ECS is
used. Instead, multipolar switching contacts are used in the safety chain.
User Manual DUET_FL „DUET_FL 48/10“ Version 1.1 Motor Power Company