Siemens6FX1121-4BA01Servo Interface / Measuring Circuit Board — SINUMERIK 800, 20 mm Module Width

Product Description

What this part is:

Siemens 6FX1121-4BA01 servo interface board for the SINUMERIK 800 series of CNC controls (810, 820, 850 and 880). Siemens installation documentation describes the 6FX1121-4B.. family as the measuring circuit module, covering the actual-value input measuring circuit and the setpoint output measuring circuit. The board reads position feedback from the axis measuring system and issues the speed or position setpoint to the drive for one axis. Sold as one board.

Decoding the designation:

6FX — Siemens machine-tool control and drive hardware.

1121 — the measuring-circuit / servo interface board group within the SINUMERIK 800 range. Siemens documentation refers to the group as 6FX1121-4B..

-4BA01 — the specific variant. Siemens catalogue text reads “SINUMERIK 800 servo interface 20 mm (SPC)”, where 20 mm is the module width in the rack.

570 214 9201.01 — the Siemens internal board / drawing number printed on the PCB.

Specifications:

Manufacturer: Siemens AG.

Order Number: 6FX1121-4BA01.

Platform: SINUMERIK 800 series (810, 820, 850, 880).

Function: servo interface / measuring circuit, actual-value input and setpoint output.

Module Width: 20 mm.

Siemens Internal Board Number: 570 214 9201.01.

Manufacturer Status: obsolete. Siemens migration path is SINUMERIK 828D and 840D sl.

Dimensions and mounting:

Plug-in board for the SINUMERIK rack, 20 mm module width. The board is configured by jumpers and switch settings on the board for encoder type, signal scaling and drive interface selection; the tables are in the Siemens SINUMERIK 880 Installation Instructions, section 4.5 for the 6FX1121-4B.. module and sections 8.1 and 8.2 for the measuring circuits.

Compatibility and replacement:

Compatible With: Siemens SINUMERIK 800 series CNC controls — 810, 820, 850 and 880. Search forms: 6FX1121-4BA01, 6FX11214BA01, 6FX1121 4BA01, 6FX 1121-4BA01, 6FX1121-4B, 570 214 9201.01 and 5702149201.01.

Frequently asked questions:

What does the Siemens 6FX1121-4BA01 do?

It is the servo interface / measuring circuit board for one axis of a SINUMERIK 800 control: actual-value input from the axis measuring system and setpoint output to the drive.

Which controls use the 6FX1121-4BA01?

The SINUMERIK 800 series: 810, 820, 850 and 880.

What is 570 214 9201.01?

It is the Siemens internal board / drawing number printed on the PCB of the 6FX1121-4BA01.