Description:
The 086370-001 is a printed wiring assembly (PWA) from ABB, catalogued under the HKQCS PARTS ON LINE designation with the description “PWA, ECPSR, R.O. +15V, –15”. It belongs to ABB’s Accuray heritage line — the measurement and control platform that originated with Industrial Nucleonics, entered ABB in 1990, and became the dominant quality control system (QCS) for paper, board, plastics, rubber, textiles and metals, measuring basis weight, moisture, caliper, coat weight, opacity and component content.
Functionally, 086370-001 is the ECPSR board: the power regulation and environmental control stage inside the Accuray Smart Processing Center (ASPC) electronics enclosure. It takes the incoming DC supply and generates the regulated +15 V and –15 V rails (alongside the system’s +5 V) that the sensor interfaces, signal-processing boards and analog circuitry in the QCS cabinet depend on, while monitoring the internal environment and raising a Disable condition if a critical rail such as –12 V falls out of tolerance. Status is reported on-board: DC IN, DISABLE, and individual +15 V, –15 V and +5 V LEDs, with rail tolerance typically held to about ±0.4 V on the 15 V lines.
Application Scenarios:
A paper mill runs an Accuray Smart Platform scanning system on a board machine, measuring basis weight and moisture across a trim width of several metres. The scanner traverses continuously, the sensors feed the ASPC, and the QCS closes the loop on the stock valve and the steam boxes. One shift, operators notice the measurement drifting — moisture readings wandering, occasional scanner nuisance alarms, a sensor fault that clears itself and returns. Production keeps running, but on-spec yield is slipping and nobody can find a gauging fault.
The cause is usually not the sensor. In a QCS cabinet the analog signal chain is only as stable as its supply rails, and the 086370-001 is what holds those rails. A board whose –15 V output has drifted outside tolerance produces exactly this pattern: not a clean shutdown, but soft, intermittent, expensive-to-diagnose measurement error that looks like a sensor problem. The decisive clue is on the board itself — if the DISABLE LED is lit, or if one of the +15 V / –15 V / +5 V indicators is out while DC IN is healthy, the fault is in the power and environmental control stage, not in the gauging.
That diagnostic path matters because of what is at stake downstream. Off-spec basis weight is sold as seconds or rewound; off-spec moisture means energy wasted in the dryer section or a customer claim. For a mill running an otherwise healthy QCS installation, 086370-001 is one board standing between a same-week repair and a prolonged loss of measurement capability — and because the platform has passed into legacy status, that board now comes from service stock rather than from a build-to-order line.
Parameter:
| Parameter | Value / Description |
|---|---|
| Product Model | 086370-001 (also referenced as 086370-501; service form Y086370-001) |
| Manufacturer | ABB — Accuray heritage product line (ASEA Brown Boveri), country of origin Sweden / USA |
| Product Category | Printed wiring assembly (PWA) — ECPSR power regulation and environmental control board |
| ABB Type Designation | HKQCS PARTS ON LINE; catalog description “PWA, ECPSR, R.O. +15V, –15” (R.O. = Regulated Output) |
| System Family | ABB Accuray Smart Platform / Smart Platform 1200 (SP1200) quality control systems; paper machine QCS |
| Regulated Outputs | +15 V and –15 V dual-polarity DC, feeding the analog circuitry, sensor interfaces and signal-processing boards; rail LEDs confirm each voltage is within tolerance (typically ±0.4 V on the 15 V lines) |
| Primary Functions | DC power distribution to the ASPC, sensors and accessories; regulation of the ±15 V and +5 V rails; internal environmental monitoring of the electronics chassis; Disable logic that protects the system when a critical rail (notably –12 V) goes out of specification |
| Diagnostics & Indication | Front-panel status LEDs: DC IN (24 VDC main power present), DISABLE (lit when the –12 V supply is out of specification, causing module shutdown), and +15 V / –15 V / +5 V rail indicators |
| Backplane Interface | Works with the system backplane (e.g. part number 086345-004) to interface external safety devices such as air-flow switches and paper-break detectors |
| Power Input | Fed from the rack DC supply; board-level logic operates from a low-voltage DC range (5–15 VDC class), with the 24 VDC main power monitored by the DC IN indicator |
| Physical & Mechanical | Rack-mount printed wiring assembly; approximate dimensions 3.5 × 12.2 × 39.5 cm, net weight approximately 1.5 kg (shipping listings commonly cite 0.48 kg for the board alone); IP20 for installation inside the QCS electronics enclosure |
| Environmental & Compliance | Industrial electronics-enclosure service; standard platform design up to 50 °C, with a Severe Environment Enclosure required above that; customs tariff 85340019 (printed circuits) / 8537101190; WEEE category: product not in WEEE scope |
| Lifecycle Status | Discontinued by the manufacturer — supplied as new, new-surplus, repair-and-return or verified legacy stock |
