WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | A03B-0819-C152 |
| Module Type | AOD08D (Digital Output Module) |
| Number of Points | 8 points (8 points/common) |
| Output Type | Source current (positive switching) |
| Rated Load Voltage | 12–24 V DC (+20%, −15%) |
| Maximum Load Current | 2 A per module (4 A max with fuse protection) |
| Maximum Voltage Drop (ON) | 1.2 V at rated load (≈ 0.6 Ω internal resistance) |
| Response Time | Typical < 1 ms (per FANUC I/O Unit MODEL A specs) |
| Isolation | Internal isolation between field and logic (per I/O Unit architecture) |
| Mounting | I/O Unit MODEL A subrack; 34-pin flat cable or terminal block variants |
| Wiring Size | AWG 22–18 (0.3–0.75 mm²) recommended |
| Power Supply | 24 V DC ±10% for module logic (via I/O Unit backplane) |
| Dimensions (approx.) | 13.4 × 3.96 × 13.4 cm (varies by listing) |
| Weight | ~0.32 kg (0.70 lbs) |
| Platform | FANUC Series 15i, 16i, 18i, 20i, 21i CNC; I/O Link slaves |
| Replaces | A03B-0807-C152 (earlier AOD08D revision) |
Product Introduction
The FANUC A03B-0819-C152 (AOD08D) is an 8-point 24 VDC digital output module used in FANUC I/O Unit MODEL A and Series 16i/18i/21i CNC systems. It switches positive (source-type) outputs for solenoids, contactors, indicator lamps, and other DC loads in machine tool and automation applications.
This module is chosen for its compact 8-point density, 2 A total current capacity, and proven compatibility with legacy FANUC CNC controllers where replacement availability is critical. The AOD08D design supports 12–24 VDC loads with built-in output protection and is a direct replacement for earlier A03B-0807-C152 units.
A03B-0819-C152
A03B-0819-C152
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs on power-up | I/O Unit backplane power or 24 VDC supply failure | ❌ Low | Measure 24 V DC at I/O Unit power terminals (CP32/CP1) with multimeter | Check PSU, fuses, and backplane power distribution before replacing module |
| All outputs stuck OFF | I/O Link communication fault or master error | ⚠️ Medium | Check I/O Link status on CNC diagnostic screen; verify JD1A/JD1B cabling | Issue is likely at I/O Link or master, not the AOD08D itself |
| Single output won’t turn ON | Field wiring open, blown fuse, or load failure | ❌ Low | Measure voltage at output terminal with load commanded ON; check fuse | Repair field wiring or replace load/fuse; module likely OK |
| Output turns ON but load doesn’t energize | Voltage drop or insufficient current capacity | ⚠️ Medium | Measure terminal voltage under load; compare to load nameplate current | Verify load current ≤ 2 A/module; reduce load or add parallel module if needed |
| ERR or I/O alarm on CNC | Module not recognized or configuration mismatch | ✅ High | Read I/O configuration and alarm logs in CNC parameter/PMC screen | Usually requires module replacement or I/O Link address check |
| Module fails after swap | Wrong module type (AOD vs AID) or revision mismatch | ✅ High | Compare old module label (AOD08D, part number suffix) before removal | Match exact part number and module type on replacement |
If you’re stuck, send photos of the module label, I/O Unit slot, and any CNC alarm screens. We’ll review them before you commit to a swap.
Frequently Asked Questions (FAQ)
Q: Is the A03B-0819-C152 () hot-swappable?
A: No. FANUC I/O Unit MODEL A modules are not designed for hot-swap. Pulling or inserting them under power can damage the backplane or adjacent modules. Follow your plant’s approved procedure—usually this means taking the CNC or I/O Unit offline before swapping.
Q: What’s the difference between A03B-0819-C152 and A03B-0807-C152?
A: Both are 8-point 24 VDC output modules. The A03B-0819-C152 is the newer revision in the A03B-0819 series and directly replaces the older A03B-0807-C152. Electrically, they handle the same 12–24 VDC, 2 A loads.
Q: Can I use this module in non-FANUC PLC systems?
A: No. The is built for FANUC I/O Unit MODEL A backplanes and I/O Link architecture. It won’t work in Allen-Bradley, Siemens, Mitsubishi, or other vendor racks.
Q: Will my PMC ladder and I/O mapping survive a module swap?
A: Yes. The I/O addresses and ladder logic live in the CNC/PMC memory, not on the output module itself. As long as you replace it with the same type and keep wiring identical, the I/O map remains valid. Always back up your PMC parameters before hardware changes.
Q: Why is this cheaper than buying direct from FANUC?
A: This is new surplus or inspected stock from decommissioned systems and authorized distributors. It’s genuine FANUC hardware, function-tested, but sold as surplus rather than factory-direct new. That’s why the price is lower while still carrying a 1-year replacement warranty.
Q: What condition is the unit in—new, used, or refurbished?
A: We list each unit explicitly: “New Original / New Surplus” means factory-sealed or unused surplus with original packaging; “Refurbished (tested)” means cleaned, electrically tested, and verified functional on a FANUC I/O Unit MODEL A test rig. The product page or quote will state which applies.
Q: Do you provide test reports or power-up videos?
A: Yes. For refurbished units, we can supply a basic functional test report (power-on self-test, I/O Link handshake, sample output channel verification with dummy loads) and short power-up video on request. Just ask before purchase.
