Overview
Manuals
DC Measurement
Terminal Wiring
Commissioning
Features:
- Uses two resistor chains to reduce the motor armature DC voltage for measurement through the drive's AI3 input.
- Connects positive armature voltage to X1, negative armature voltage to X2 and the reduced measurement output from X3 to XAI: AI3.
- Supports external voltage measurement where a DC breaker or US-style DC contactor, EMF feedback and dynamic braking are used together.
SDCS-UCM-1-COAT 3ADT220090R0008 is an ABB resistor board for external DC voltage measurement. ABB's DCS880 instruction places the SDCS-UCM-1 outside the converter module and routes its reduced output to AI3.
Confirm the complete material number, board label, revision, coating requirement, DCS880 frame size and motor nominal voltage before replacement. The measurement board, wiring and firmware scaling must be treated as one engineered function.
The official lifecycle status of SDCS-UCM-1-COAT 3ADT220090R0008 was not independently confirmed in the cited ABB instruction. Moore Automated confirms the offered board identity, revision, coating, condition and test scope in the written quotation.
ABB SDCS-UCM-1-COAT 3ADT220090R0008 product reference links
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.
Use the board only in the documented external armature-voltage measurement arrangement; verify that the application conditions and DCS880 frame size match the engineering design.
Connect C1 to X1, D1 to X2 and X3 to XAI: AI3. Select the X1/X2 terminal positions according to nominal motor voltage and observe the dangerous DC potential.
Verify AI3 polarity and scaling against EMF and armature voltage in both directions before setting parameter 95.37 to the external scaled measurement.
