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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | A413171 |
| Manufacturer | Valmet Automation |
| Module Type | PIC Binary Output Module |
| Function | Binary (digital) output on PIC bus |
| Known Revision | Model 03 appears in listings |
| Product Category | PLC/Add-On PC Board |
| Weight | 0.44 lbs (0.20 kg) |
| Typical Condition | Used with reconditioned options |
| Availability | Limited stock, surplus market |
| Warranty (common) | 3 months return base (reconditioned) |
| Warranty (new) | 12 months return base (new) |
| Shipping | Worldwide delivery available |
Product Introduction
Valmet A413171 is a PIC binary output module used in Neles Metso Valmet automation systems. It provides binary output signals on the PIC bus for control of actuators, valves, and other discrete devices in industrial processes.radwell+1
This part is typically sourced as used or reconditioned surplus since it is an older legacy board. Market listings show Model 03 revisions in stock, so match the revision and verify rack compatibility before installation.rivercityindustrial+1
- A413171
- A413171
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Output point stays off | Module fault or no power to loop | ✅ High | Measure 24V at output terminal, check module supply rail | Replace module if power is present but no output |
| Output point stays on | Stuck driver or shorted load | ✅ High | Disconnect load, measure voltage at terminal | Replace module if point stays on with load removed |
| Multiple outputs dead | Backplane power or bus fault | ❌ Medium | Check supply voltage on rack, test adjacent modules | Check rack PSU before replacing the module |
| LED error flashing | Internal fault or configuration mismatch | ✅ High | Read PLC diagnostic buffer, compare module revision | Replace with exact Model 03 if available |
| No comms on PIC bus | Bus termination or wiring fault | ❌ Medium | Check bus cable continuity, verify termination resistors | Fix bus wiring before blaming the output module |
| Module overheats | Shorted output or overcurrent | ✅ High | Measure output current, inspect load for shorts | Replace module and correct the load issue |
| Random output glitches | EMI or ground problem | ❌ Low | Check shield grounding, verify single-ended ground | Recheck cable routing and grounding before replacement |
Contact technical support with photos of the front label, revision tag, output terminal wiring, and PLC diagnostic log if you cannot isolate the fault.
Frequently Asked Questions
Q: Is Valmet A413171 still available from the factory?A: No. It is an obsolete legacy part. You will find it only through surplus dealers as used, reconditioned, or new-no-box stock.
Q: I see Model 03 listed—is that the only revision?A: Model 03 is the revision most commonly on the market now. Other revisions may exist, but do not assume cross-compatibility. Match the revision on your installed unit.
Q: Can I hot-swap this module?A: No. Do not pull this live. Kill power to the rack before removal. Hot-swapping can damage the backplane or the module.
Q: Will configuration be lost when I swap it?A: The module itself usually does not hold user logic. Your PLC program stays in the controller, but you should verify the node address and output mapping after the swap.
Q: What condition should I expect for this part?A: Most listings are used or reconditioned. Some sellers offer “new no box” surplus. Reconditioned units often carry a 3-month warranty, new surplus may carry 12 months.
Q: Why is it cheaper than ordering from the OEM?A: Because the OEM does not actively stock it anymore. You are buying from decommissioned systems or excess inventory, which drives the price down but adds verification responsibilities.
Q: What typically fails on this module?A: Output drivers can short or stick, especially if the load has surges or shorts. Backplane power issues and bus faults can also look like module failure, so check power and wiring first.
Q: Is this a direct replacement for every A413171?A: The model number is the right first check, but you must match the revision and verify your rack and controller firmware are compatible. Do not assume plug-and-play without that check.
