ABB ATMB-01C Temperature Measuring Board 68908574B Overview

Brand Background

ABB is a global leader in electrification, industrial automation, motion, and robotics. Within industrial drive technology, ABB’s variable frequency drive (VFD) platforms and power conversion systems set industry standards for speed control, energy efficiency, and operational safety. ABB drive components are designed to deliver exceptional reliability, high thermal stability, and precise signal feedback in critical processing environments.

Model Overview: ATMB-01C (Part Number: 68908574B)

The ABB ATMB-01C (Part Number: 68908574B) is a specialized Temperature Measuring Board engineered for integration into ABB high-power industrial variable frequency drives (such as the ACS800 series) and power electronic modules.

Functioning as a dedicated thermal measurement and protection module, the ATMB-01C processes analog signals from temperature sensors (e.g., PT100, PTC thermistors, or thermocouples) located within motor windings, transformer cores, or power semiconductor heat sinks (IGBT modules). It converts these thermal readings into standard digital feedback signals, transmitting real-time temperature data directly to the central drive control unit to prevent thermal overload and damage.

ABB ATMB-01C Temperature Measuring Board 68908574B

Key Technical Specifications and Parameters

• Manufacturer: ABB

• Model Name / Designation: ATMB-01C

• Part / Catalog Number: 68908574B (also designated as ATMB-01)

• Product Type: Temperature Measuring Board / Thermal Sensor Interface Board

• Sensor Compatibility: Supports multiple temperature sensor inputs including PT100 RTDs, PTC thermistors, and KTY sensors

• Channel Configuration: Multi-channel temperature measurement input interface

• Power Supply Voltage: Supplied internally via the drive control backplane / power module (typically 24 VDC / 5 VDC)

• Signal Isolation: Galvanic isolation between sensor input channels and the main drive control logic for noise suppression and electrical safety

• Operating Temperature Range: Industrial standard -10°C to +60°C operating environment

• Mounting Type: Modular plug-in printed circuit board (PCB) designed for mounting inside ABB drive cubicles or power assemblies

Operating Industries

The ATMB-01C temperature measuring board is deployed across continuous-process and heavy industrial sectors where motor overheating and drive failure present severe financial or operational risks:

• Power Generation & Utilities: Boiler feed pumps, cooling tower fans, and generator auxiliary drives.

• Metals & Mining: Large grinding mills, heavy-duty conveyors, furnace blowers, and rolling mill drives.

• Oil, Gas & Petrochemicals: Crude oil pumps, high-pressure gas compressors, and offshore platform drive units.

• Pulp & Paper: Continuous paper machine drives, pulpers, refiners, and chemical recovery boilers.

• Water & Wastewater: High-capacity municipal water pumps, aeration blowers, and desalination systems.

• Marine & Offshore: Electric propulsion motors, thruster drives, and heavy winches.

Common Usage Scenarios

1. Drive Semiconductor Thermal Protection

   Monitoring the temperature of IGBT heat sinks and power modules in heavy-duty VFD cabinets to trigger automated cooling fan speed adjustments or thermal trip alarms.

2. Motor Winding & Bearing Temperature Monitoring

   Receiving PT100 temperature sensor feedback from AC induction or synchronous motor windings to guard against insulation breakdown caused by thermal overload.

3. Interlocking and Emergency Shutdown Protocols

   Interfacing with the central drive control board (such as the main control unit) to safely derate drive output or initiate automated trip sequences when pre-set temperature thresholds are exceeded.

4. Predictive Maintenance and Diagnostics

   Providing real-time thermal data over industrial fieldbus networks to SCADA or asset management systems, enabling predictive maintenance schedules before component failures occur.