00196044-05 - sg x und x4i fse_en.pdf - 第187页
Energy and Compressed Air Supply Safety and Signaling Circuit Power supply S tudent Guide (FSE) SIPL ACE X Series and X4I Edition 01/2009 EN Energy and Compressed Air Supply 187 5.2.8 Safety and Signaling Circuit 5.2.8.1…
Energy and Compressed Air Supply
Power supply DC/DC Converter Vision Section 2
Student Guide (FSE) SIPLACE X Series and X4I
Energy and Compressed Air Supply Edition 01/2009 EN
186
5.2.7.2 Voltage Supply for Hood Fans
The increase in placement performance, optimization of travel paths, rotated gantry and the overlapping
of individual axes leads to increased heat generation inside the machine. This heat can affect the
placement accuracy and the MTBF times. For this reason, each machine hood has been equipped with
four fans for cooling the processing areas.
5-13: Voltage Supply for Hood Fans
The fans are supplied with 24V from the computer unit by the DC/DC converter and are switched via the
safety circuit.
Energy and Compressed Air Supply
Safety and Signaling Circuit Power supply
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN Energy and Compressed Air Supply
187
5.2.8 Safety and Signaling Circuit
5.2.8.1 Emergency STOP Circuit (Safety Circuit)
Following contacts are switched in serial and build the safety loop:
4 protective cover switches (main cover).
conveyor cover switch.
Contact on changeover table
The emergency STOP button may not be pressed (input and output conveyors)
5-14: Safety loop
Description of emergency STOP circuit:
When the emergency STOP circuit is closed, there is 24 V present at K5, contact 3. A further 24 V signal
is sent as
EMERGENCY STOP loop OK
Sent to each CAN I/O module, indicating that the covers are
all closed and that the changeover tables are connected.
Energy and Compressed Air Supply
Power supply Safety and Signaling Circuit
Student Guide (FSE) SIPLACE X Series and X4I
Energy and Compressed Air Supply Edition 01/2009 EN
188
5.2.8.2 Control Loops
Changeover Table Loop
5-15: Changeover table loop
The 4 component tables are switched in parallel mode. If one or more tables are not connected, the
contact will close and 24 V will be present at the input of the CAN I/O module in sector 2 or 4.
Cover Control Loop
5-16: Cover Control Loop
The cover control loop consists of 6 contacts (2 main covers, each with 2 contacts and 2 covers on the
conveyors (input and output)), which are switched in parallel mode. If 1 or more covers are open, the
contact will close and the 24 V will be present at the input of the CAN I/O module in sector 4. The same
applies to sector 2. This shows that one of the covers is open.