Features:
- The PPU 260.2 combines SINUMERIK 828D CNC hardware with a vertical operator-facing panel.
- A 24 V DC input supplies the complete unit, with documented buffering for short input interruptions.
- The closed front reaches IP65 while the rear electronics remain IP20 and UL open type.
The vertical construction lets the PPU front occupy the machine-panel opening while the electronics project into the protected enclosure.
Front and rear operating temperatures are specified separately because the two sides experience different thermal conditions.
Power continuity depends on the supply arrangement: the extended buffering figure applies only with the stated SITOP smart source.
The Siemens 6FC5370-6AA20-0AA0 SINUMERIK 828D PPU 260.2 may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6FC5370-6AA20-0AA0 SINUMERIK 828D PPU 260.2 Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Relating the 24 V input to ride-through time
- Input boundary: The PPU accepts the specified tolerance around its 24 V DC rated supply.
- Unit demand: The complete panel processing unit is designed around a maximum 60 W power requirement.
- Standard buffering: Without the named auxiliary supply arrangement, the documented mains buffering time is three milliseconds.
- SITOP condition: Twenty milliseconds applies when the PPU is operated with the specified SITOP smart power supply.
Separating front and rear temperature limits
- Operator side: The front section is rated for operation from 0 to +45 °C.
- Cabinet side: The rear section extends to +55 °C when the enclosure maintains the required conditions.
- Storage state: The non-operating storage range is distinct from both operating zones.
- Humidity control: Operating, storage and transport each have their own relative-humidity boundary.
Applying protection to the correct face
- Closed front: IP65 applies to the operator face only while the front flap is closed.
- Rear electronics: The cabinet-facing side is IP20 and UL open type.
- Panel opening: The machine enclosure must protect the rear rather than extending the front rating to the whole PPU.
- Access flap: Opening the front flap removes the condition under which the documented IP65 front rating is stated.
Keeping the PPU in its documented orientation
- Device position: Both the PPU mounting direction and operator-panel orientation are vertical.
- Panel cutout: The front sits at the machine surface while the electronic depth remains behind the panel.
- Ventilation path: Cabinet airflow must serve the rear electronics within their higher operating-temperature limit.
- Mechanical check: The mounting surface must accommodate the complete panel dimensions and rear clearance.