Yaskawa DF9200733-B0 (JANCD-MFC03-2) Absolute Encoder Board
May 29, 2026

Yaskawa DF9200733-B0 (JANCD-MFC03-2) Absolute Encoder Board

The DF9200733-B0, marked JANCD-MFC03-2 Rev B0, is a dedicated absolute encoder interface board designed for Yaskawa Motoman MRC and XRC robot controllers. It adopts natural convection cooling inside the control cabinet, processing encoder signals from all servo axes and retaining position data via backup battery after power-off. Featuring stable circuit design and reliable signal transmission, it is ideal for high-precision robot systems that require position memory and no repeated homing.

Description

Model Definition

DF9200733: Base part number of MFC03 series absolute encoder board
B0: Standard hardware revision with reliable circuit layout
JANCD-MFC03-2: Official Yaskawa model designation
Applicable System: Matches Motoman MRC and XRC robot controller platforms

Technical Specifications

Electrical Parameters

Internal supply voltage: 5 V DC, powered by controller main power
Backup power supply: 3.6 V lithium battery for position data retention
Working current: Approximately 800 mA
Signal type: Differential encoder signal and system bus signal
Battery service life: 2 to 5 years under normal operating conditions

Mechanical & Environmental Parameters

Cooling method: Natural convection cooling inside controller cabinet
Protection class: IP20 for cabinet internal installation
Operating temperature: 0 °C to +55 °C
Storage temperature: -20 °C to +70 °C
Relative humidity: 30% to 95% RH, non-condensing
Dimensions (W×H×D): 230 mm × 160 mm × 30 mm
Weight: Approximately 0.7 kg

Interface and Communication Configuration

Encoder interface: Dedicated port for servo motor absolute encoder signal reception
System bus interface: Connect to controller main CPU board for data interaction
Battery socket: External 3.6 V backup battery installation position
Status indicators: LED lights for power, signal and fault status

Core Functions

Receive and decode absolute encoder signals from each robot servo axis.
Store and protect axis absolute position data via backup battery after power loss.
Realize data backup, restoration and synchronization of all motion axes.
Support real-time data interaction with main control board to ensure motion accuracy.
Integrate multiple protection circuits for abnormal signal and low battery voltage detection.
Trigger corresponding system alarms and fault prompts when encoder or battery fails.
Compatible with extended axes to satisfy multi-axis robot control demands.

Application Scenarios

Standard six-axis industrial robots of Motoman MRC and XRC series
Robot workstations for welding, handling, spraying and assembly processes
High-precision automation equipment requiring no repeated axis homing
Controller maintenance, board replacement and system retrofit projects
Multi-axis robot systems with extended servo axes

Usage and Maintenance

Use ESD protection tools during board disassembly, installation and replacement.
Replace backup battery while the controller is powered on to avoid position data loss.
Check battery voltage and LED status indicators periodically.
Clean board surface and connectors every six months to remove dust and oxide.
Back up absolute position data before replacing related controller boards.
Inspect encoder wiring and connectors regularly to prevent signal interruption.
Replace aging lithium batteries in time to avoid data loss and system alarms.


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