Features:
- An 8-inch 640 x 480 color display carries the assigned SINUMERIK operator interface.
- The portable IP65 enclosure combines viewing, command keys, emergency stop, and enabling control.
- A 24 V DC connection supplies the terminal through the documented HT 8 connection hardware.
The machine interface displayed by Siemens 6FC5403-0AA20-0AA0 follows the connected SINUMERIK HMI rather than running as an independent controller.
Operator commands from 6FC5403-0AA20-0AA0 return through the handheld connection while the enabling and emergency-stop circuits remain part of their defined control paths.
The non-handwheel order code of 6FC5403-0AA20-0AA0 distinguishes it from the adjacent HT 8 version that adds a handwheel.
The Siemens 6FC5403-0AA20-0AA0 SINUMERIK HT 8 Handheld Operator Terminal may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6FC5403-0AA20-0AA0 SINUMERIK HT 8 Handheld Operator Terminal 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.
Portable Machine Operation
- VGA screen: The 8-inch color panel displays a 640 x 480 operator interface.
- Local commands: Handheld keys transfer operator actions to the connected SINUMERIK system.
- Mobile position: The cable-connected design lets the interface move within the documented operating area.
- Variant check: This article is the HT 8 configuration without the handwheel option.
Emergency Stop and Enabling Paths
- Emergency stop: The handheld command device must be integrated into the machine emergency-stop circuit.
- Enabling control: The enabling button provides the documented staged operator-permission signal.
- Connection box: The selected PN Basic or PN Plus hardware defines how the safety circuits are connected.
- Circuit boundary: The terminal does not replace the required external safety evaluation and wiring.
Connection Hardware and Supply
- Supply input: The HT 8 operates from a 24 V DC source delivered through its connection arrangement.
- Consumption: The complete terminal draws no more than 13 W under rated operation.
- Signal bundle: Display, key, and command-device conductors travel through the supported handheld cable path.
- Accessory match: Connection module, box, and cable selection must match the installed SINUMERIK architecture.
Handheld Operating Limits
- Housing: IP65 protection applies to the handheld terminal enclosure.
- Operation: The permitted operating-air range is 0 to 55 C.
- Transport and storage: The documented lower limit is -20 C and the upper limit is 55 C.
- Humidity: Relative humidity may reach 95 percent only when condensation and icing are excluded.