Description
General Information
表格
| Item | Specification |
|---|---|
| Part Number | 086318‑002, 086318‑501 |
| Manufacturer | ABB AccuRay |
| Product Family | MPRC‑HKQCS Paper Machine QCS System |
| Product Type | SRAM Memory Daughter‑Board |
| Installation | Plug‑in daughter‑board, mounted on MPRC main CPU board |
| Power Supply | 5 VDC supplied by MPRC mainboard, no external power input |
| Data Retention | Equipped with on‑board lithium backup battery for data retention during power failure |
| Status Indicator | Without on‑board LED; memory faults are reported by MPRC host controller |
| Lifecycle Status | Obsolete / End‑of‑Life. Original production discontinued, only surplus or used maintenance spare parts available |
Electrical & Interface Specifications
- Memory Type: SRAM (Static Random‑Access Memory)
- Interface: Dedicated board‑to‑board edge connector, no external field‑bus or field I/O terminals
- Main Function: Stores user control programs, system configuration parameters, sensor calibration coefficients, alarm logs and historical process data
- Battery Remarks: On‑board lithium battery is a consumable component. Program and parameter loss may occur when battery voltage drops below threshold under power‑off condition.
- Compatibility: 086318‑501 is high‑capacity version while 086318‑002 is base‑capacity version. They cannot be directly interchanged. MPRC controller firmware must support corresponding memory size before replacement.
- Operation Condition: Cannot work independently, must match MPRC main controller hardware.
Environmental Specifications
表格
| Item | Value |
|---|---|
| Operating Temperature | ‑20 °C ~ +70 °C (cabinet installation) |
| Storage Temperature | ‑40 °C ~ +85 °C |
| Relative Humidity | 5‑95 % RH, non‑condensing |
| Compliance Standard | CE, industrial automation standards |
| Protection Class | IP00, internal controller component |
| Weight | Approx. 0.11‑0.13 kg |
Main Functions
- SRAM memory expansion daughter‑board for legacy MPRC‑HKQCS paper quality control controller. On‑board backup lithium battery keeps programs, calibration data and event logs when power is lost.
- Plug onto MPRC main CPU board, works cooperatively with backplane and other daughter‑boards inside MPRC rack.
- Typical failure phenomena: memory fault alarm of controller, loss of programs and parameters after power cycle, caused by battery aging or SRAM chip damage.
- Only used as maintenance spare parts for old paper‑mill QCS equipment.
Typical Applications
- Spare‑part replacement for ABB MPRC‑HKQCS paper‑machine QCS control cabinet.
- On‑site troubleshooting for low battery alarm, program loss after power‑off, memory related fault codes.
Reviews
There are no reviews yet.