Siemens 6SN1123-1AA00-0DA2 Configuration Manual page 292

05.01
Releasing the protective door
The protective door is released using contactor –K16 if the following conditions
are fulfilled:
S
S
S
S
Optional:
S
Opening the protective door
By opening the protective door, the protective door safety circuit is opened via
the actuator of the door position switch –S11 – redundantly to the position moni-
toring function of the solenoids.
Closing the protective door
The protective door must be closed. Using pushbutton –S16 – interlock protec-
tive door – contactors –K15/–K16 are de–energized (they drop–out) and the
protective door is again interlocked. The interlock circuit is again closed through
terminals 611–612/613–614 which means in the selected automatic mode, the
drives can again be released using pushbutton =4–S32 – start.
For protective doors that are infrequently opened, we recommend that the con-
trol is adapted so that each time before the drives are powered up, the position
switch function is checked by opening and again closing the door.
© Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
8.7 Circuit examples =1 to =9 with SIMODRIVE 611
Contactor –K15 is closed (energized)
Drives, delayed stop, contactors =4–K33 and =4–K36 open (de–energized).
MSD standstill signal n act < n min via relay =4–K11.
User–side interlocking circuit is closed via terminal 601–602.
External standstill monitoring closed via terminal 77–78.
The interlocking solenoid of the door position switch –S11 is energized and
the safety relay –K11 and contactors –K13/–K14 are de–energized via the
position monitoring function of the solenoid. The drives are shutdown in a
safety–relevant fashion through two channels via the interlocking circuit,
terminals 611–612/613–614. The protective door is initially just released, but
is still closed, relay –K17 is energized. Using the PLC, e.g. sub–functions of
the user–side machine control, that are still not hazardous, can be executed.
8 Important Circuit Information
8-291
8