Siemens Servo Motor Brake 8661108T01

No official detailed technical parameters or product information of Siemens Servo Motor Brake 8661108T01 has been found so far. This model has no clear records in Siemens’ official product catalogs, technical documents, or authorized dealer channels.

Analysis of Possible Scenarios

1.  Non-standard Model: This model may be a project-specific customized product, a special batch product, or a regional product that is not included in Siemens’ standard product lineup.
2.  Spare Part or Replacement Part: It may be a component or repair spare part of the servo motor brake system, rather than a complete product sold independently.
3.  Model Nomenclature Discrepancy:

– Standard Siemens servo motor brakes are usually bound to the motor model instead of having independent part numbers.

– Standard naming example: 1FK7084-2AC71-1AA0 (with brake), distinguished by the suffix letters of the order number.

– Some brake components may adopt “Z + numbers” as option codes, e.g., “-ZF70” (with brake).

General Characteristics of Siemens Servo Motor Brake Systems

Working Principle

– Electromagnetic brake, released when energized and engaged when de-energized.

– Prevents unintended movement of the motor caused by gravity or external forces after power-off.

– Commonly used in applications with high safety requirements such as vertical axes and lifting mechanisms.

Typical Parameters

– Operating Voltage: Normally 24V DC (±10%)

– Operating Current: ≤0.6A

– Holding Torque: ≥12Nm (varies with motor specifications)

– Response Time: Adjustable via the drive parameter (p1216)

Wiring Method

V90 Series: The brake interface (X7) is integrated on the front panel of the drive.

Other Series: Connected to the drive via a dedicated connector.