I. Basic Information

Model: JANCD-GSC01 (often written as GSC01)

Brand: Yaskawa

Series: YASNAC 2000G / 3000G CNC

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

Original Part Number: DF7000066

Slot: Slot 4 (fixed, cannot be mixed with display card)

Compatible with Controller: GMM11 (4-axis) / GMM12 (6-axis)

Status:停产， only second-hand / refurbished circulation

Weight / Size： Approximately 0.8kg， full-length industrial board

II. Core Functions

✅ Built-in PLC operation： Execute machine tool ladder diagrams (M/S/T， interlock， safety circuits)

✅ I/O logic transfer： Connect with GRS01 (Slot 3)， handle 16 inputs / 16 outputs

✅ Panel signal processing： Operation panel / MDI button logic， mode switching

✅ Alarm generation： PLC side alarm (emergency stop， limit， door open) uploaded to GMM

✅ Spindle / Cooling control： Start/stop， ratio， pump logic

❌ No motion control： No interpolation， no drive servo (GMM is responsible)

❌ No graphic display： Not responsible for CRT/VGA (GMR/GRT is responsible)

III. Hardware Specifications (Standard Version of GSC01)

CPU： 16-bit

Program Memory： 64KB (ladder diagram capacity)

Scan Cycle： ≈8ms

Power Supply： Backplane DC5V， approximately 12W

Temperature： Working 0℃~+55℃； Storage **−25℃~+85℃**

Backup Battery： Built-in lithium battery (life approximately 5 years， program retained during power loss)

IV. Interface Definitions (CN1 to CN3)

CN1： System bus → Connect GMM (data + power)

CN2： I/O bus → Connect GRS01 (16 inputs / 16 outputs)

CN3： Panel bus → Connect GRT01 or directly operate the panel Indicator light

PWR: Normal power supply (always on)

RUN: PLC running (1Hz flashing)

ALM: PLC alarm (always on: ladder diagram error, I/O failure, low battery)

VII. Model Differences (GSC01 vs GSC01B vs GSC02)

GSC01 (Basic version): 16-bit / 64KB / 8ms, compatible with GMM11 (4 axes)

GSC01B (Improved version): Same as GSC01, enhanced anti-interference, compatible with GMM11/GMM12

GSC02 (High-performance version): 32-bit / 128KB / 2ms, compatible with GMM22 (8 axes)

VI. Standard Pairing (Must be strictly matched)

✅ 2000G (4 axes): GMM11 + GMR22 + GRS01 + GSC01

✅ 3000G (6 axes): GMM12 + GMR22 + GRS01 + GSC01B

❌ GMM22 (8 axes): Not compatible with GSC01, must be paired with GSC02

❌ Slot4 is unique: Cannot be mixed with GMR/GRT/GRS

VII. Common Faults and Troubleshooting

PWR does not light up: Backplane 5V power supply abnormal, CN1 loose, board short circuit

RUN does not flash: Ladder diagram program lost / damaged, CN1 communication failure, CPU failure

ALM always on: Ladder diagram syntax error, external I/O short circuit, low battery voltage

Panel no response: CN3 contact不良， GSC01 and GRT01 versions incompatible

Program lost： Backup battery failure (replace with lithium battery and re-download ladder diagram)