ASM SIPLACE 00321733 is the TDS120/25Y servo amplifier for the Y-axis drive system. Its role is at the servo-drive level, so it should not be treated as a generic axis control board or selected only because another amplifier belongs to the same TDS120 family.
This board becomes relevant when a Y-axis servo or drive problem is under investigation, such as the axis failing to enable or maintain normal motion after basic mechanical checks. These symptoms do not prove that 00321733 is defective: the Y-axis motor, position-feedback device and associated cabling belong to separate parts of the motion-control chain and should be considered before the repair is fixed at amplifier level.
That distinction matters during a machine-down event. Replacing the servo amplifier when the actual fault remains in the motor, feedback system or cable path does not restore Y-axis operation and delays production recovery. The same problem occurs when a similar-looking X-axis or DP1 amplifier is supplied in place of the Y-axis TDS120/25Y version.

00321733 Y-Axis Servo Specifications
| Part Number | 00321733; documented version includes 00321733-04 |
|---|---|
| Part Type | Servo Amplifier PC-Board |
| Amplifier Model | TDS120/25Y |
| Axis | Y-axis |
| Documented Application | Legacy ASM / Siemens SIPLACE motion systems; available records include F4 and S20 applications |
| Repair Level | Y-axis servo-drive / amplifier level |
| Main Selection Risk | Confusing TDS120-family amplifiers assigned to different axes or drive configurations |
| Core Matching Point | Complete board P/N, TDS120/25Y identification, Y-axis assignment, machine configuration and connector layout |
TDS120 Servo Board Differences
| Part Number | Documented Function |
|---|---|
| 00321732S02 | X-axis servo amplifier, TDS120/12.5X |
| 00321733-04 | Y-axis servo amplifier, TDS120/25Y |
| 00321734-02 | DP1-axis servo amplifier, TDS120/1D |
The shared TDS120 designation does not make these boards interchangeable. For a Y-axis repair, 00321733 must remain tied to the TDS120/25Y configuration; an X-axis or DP1 version will not resolve the intended Y-axis drive requirement and can extend machine downtime while the correct amplifier is sourced.
During fault isolation, keep the servo amplifier separate from the motor and position-feedback components. If another part of the Y-axis drive chain has already been confirmed serviceable, the board label, connector layout and machine configuration provide the strongest basis for matching the replacement amplifier.
If 00321733 has already been confirmed as the failed Y-axis amplifier, send the complete board label, machine model and required quantity for stock and configuration checking. Confirmed spare units can normally be dispatched within 24–48 hours, with urgent machine-down requirements prioritized so the replacement can move directly into the repair plan.
For an urgent Y-axis machine stop, use the removed 00321733 board as the primary reference and provide clear photos of the label and connectors together with the machine model. This keeps the replacement focused on the actual TDS120/25Y amplifier rather than on a generic servo-board description.