JANCD-FC500
Description
1. General Description
2. Basic Specifications
Applicable system: YASNAC I80 / I80M (works with FC250 or FC251 CPU board)
Backplane: JANCD-FC001 (1 full slot, same as I/O boards)
Board size: Full-length (≈267 × 140 mm, matches FC4xx series)
Power supply: DC 24V ±10%, approx. 1.5 A (15W power consumption)
Operating temperature: 0 to +45°C
Storage temperature: −20 to +60°C
Memory:
Integrated load memory: 8 MB
Integrated work memory: 8 MB
Retentive bit memory: Up to 16384 bytes (adjustable)
3. Core Functions
A. High-Speed Ladder Logic Execution
Program capacity: Up to 8190 data blocks (DBs), 24 organization blocks (OBs)
Max block size: 64 KB (OB/FB/DB)
Execution speed: ≤0.1 ms/step (high-speed sequence control for 5–6 axis machines)
Nesting depth: 16 levels (per priority class)
B. I/O Management
Directly controls FC400–FC440 I/O boards (up to 320 I/O points total)
Signal processing: DC 24V sink/source compatible (NPN/PNP)
Response time: ≤0.8 ms (fast I/O sampling for safety interlocks)
C. Communication Interfaces
CN50: High-speed bus (to FC250/FC251 CPU, CNC-PLC data exchange)
CN20: I/O bus (to FC4xx I/O boards)
Optional: PROFIBUS-DP, DeviceNet (for peripheral device communication)
4. System Compatibility & Combinations
Mandatory Pairing
CPU board: JANCD-FC250 (standard) or FC251 (high-grade, recommended)
Backplane: JANCD-FC001 (1 full slot)
Recommended Configurations
Standard I80 setup: FC250 + FC500 + FC400 (32IN/32OUT)
High-density setup: FC251 + FC500 + FC430 (128IN/128OUT)
Max I/O setup: FC251 + FC500 + FC440 (160IN/160OUT)
Limitations
1 board per I80 system maximum (dedicated PLC slot on FC001)
Cannot replace CPU board (FC250/FC251) – separate roles for motion vs. PLC control
5. FC500 vs. FC4xx (I/O Boards)
| Item | FC500 (PLC Processor) | FC4xx (I/O Boards: FC400–FC440) |
|---|---|---|
| Role | Sequence control, logic execution, communication | Physical input/output (sensors/actuators) |
| I/O points | No direct I/O | 32–160 IN/OUT (varies by model) |
| Core function | Ladder logic, CNC-PLC data exchange | Signal sampling/driving, wiring terminal |
| Slot usage | 1 full slot | 1 full/half slot |
| Dependency | Works with FC250/FC251 + FC4xx | Controlled by FC500 |
6. Common Faults & Alarms
A.500 PLC bus error: CN50 loose, FC250/FC251 communication failure, bus chip fault
Ladder logic timeout: Program loop error, excessive nesting, memory overflow
I/O communication loss: CN20 loose, FC4xx board failure, backplane contact issue
All LEDs off: 24V supply missing, internal main fuse blown, backplane fault
Memory error: Corrupted program, faulty memory chip, insufficient retentive space
7. Applications
5-axis/6-axis machining centers (complex sequence control for clamps, pallets, tools)
Multi-station transfer lines (synchronized I/O processing for automated production)
Fully automated production cells (machine + material handling + inspection integration)
High-end multi-spindle turn-mill centers (dual spindle + multiple turrets + B/C axes)
Legacy I80 system upgrades (replace faulty PLC core without full CNC replacement)
Get a Quote