9
05.01
9.4 Application examples
9-363
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
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The instantaneous output (14) of safety relay –A1 is de–energized, and the-
refore the cascading input (1) of –A2 is deactivated. –A2 behaves just the
same as when opening the protective door.
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After the selected time at –A2 has expired, the delayed output (28) switches
the cascading input (1) from –A3 to a low signal level.
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The instantaneous output (14) of –A3 switches–out (de–energizes) safety
relay –K1 via –K6. (the drive pulses are canceled and in turn the energy
feed to the motor is interrupted).
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The delayed output (28) of –A1 switches–out (de–energizes) line contactor
–K2 after the selected time.
This behavior corresponds to stop Category 1, according to EN 60204–1:2006.
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The drive must be stopped within the delay time set at –A2. If the pulses are
canceled before the drive comes to a standstill, then the drive will coast
down.
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The time at –A3 should be set as short as possible, however so that –K3
pulls in before –K4 drops out in order to avoid that line contactor –K2 drops
out.
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The delay time at –A1 should be set the same as the time of –A2.
Actuating
EMERGENCY
STOP
Secondary
conditions
9 Cabinet Design and EMC
02.12
