I. Basic Information

Model: JANCD-GSC01B

Brand: Yaskawa (Yaskawa)

Series: YASNAC 2000G / 3000G CNC

Type: Sequence Control Board (built-in PLC control board)

Original Part Number: DF7000067

Slot: Slot 4 (fixed)

Compatible with main controller:

✅ GMM11 (4-axis)

✅ GMM12 (6-axis)

Status: Out of production, mainly second-hand / refurbished

Weight / Size: Approximately 0.75kg, standard industrial board card

II. Core Specifications (16-bit PLC)

CPU: 16-bit

Program Memory: 64KB (Ladder Diagram)

Data Memory: 16KB

Scan Cycle: ≈ 8ms

I/O Points: Maximum 16 inputs / 16 outputs

Power Supply: Backplane DC5V, approximately 12W

Operating Temperature: 0℃~+55℃

Backup Battery: Built-in lithium battery (life approximately 5 years)

III. Differences from GSC01/GSC02 Table

Model CPU Memory Scan Cycle Number of Compatible Axes Features

GSC01 16-bit 64KB 8ms Only 4 axes (GMM11) Basic version, susceptible to interference

GSC01B 16-bit 64KB 8ms 4/6 axes universal Strong anti-interference, good compatibility

GSC02 32-bit 128KB 2ms Only 8 axes (GMM22) High performance, 4 times faster

V. Interfaces and Indicators

CN1: System Bus → Connects GMM11/GMM12

CN2: I/O Bus → Connects GRS01 or extended I/O

CN3: Panel Bus → Connects GRT01 operation panel

Indicators:

PWR: Power always on

RUN: Run flashes (normal 1Hz)

ALM: Alarm always on (program/hardware failure)

VI. Standard Pairing (Slot 4 is unique)

✅ 4-axis system: GMM11 + GMR11 + GRS01 + GSC01B

✅ 6-axis system: GMM12 + GMR12 + GRS01 + GSC01B

❌ 8-axis system: Not available, must use GSC02

VII. Common Faults and Troubleshooting

ALM always on: ladder diagram error, I/O short circuit, battery voltage low

RUN does not flash: program lost, CN1 communication disconnected, main control GMM abnormal

Panel no response: CN3 contact不良， GRT01 version mismatch

Battery alarm： onboard lithium battery exhausted (rebackup program required after replacement)

VIII. Key Points for Model Identification

Soldering： JANCD-GSC01B (digit 0， not letter O)

Label： DF7000067， version (e.g. Rev A)

PCB color： green， component layout more regular than GSC01