Description
General Information
表格
| Item | Specification |
|---|---|
| Part Number | DO880‑1, 3BSE028588R1 |
| Manufacturer | ABB |
| Product Family | AC 800M, S800 I/O System |
| Product Type | 8‑Channel Relay Digital Output Module |
| Installation | Mounted on S800 I/O backplane, matching terminal base TU880‑1 |
| Power Supply | Module bus power, field power supplied via terminal base |
| Lifecycle Status | Obsolete / End‑of‑Life. OEM manufacturing discontinued. Only new‑old‑stock, refurbished and field‑pulled used maintenance spare parts available; no brand‑new factory‑built units can be ordered. |
| ESD Handling Requirement | Digital relay output electronics assembly; anti‑static wrist‑strap and anti‑static workstation required for installation and replacement operations. |
Electrical & Interface Specifications
- Backplane Interface: S800 internal module bus, communicates with AC800M controller via CI840A communication interface.
- Field Terminals: Connected through TU880‑1 terminal base unit.
- Channel Configuration: 8‑channel independent relay contact outputs.
- Output Rating: Relay dry contact, resistive load.
- Contact Rating: Max 250 VAC / 30 VDC per channel.
- Isolation: Galvanic isolation between each relay channel and internal control logic.
- On‑Board Circuitry: Relay drive circuit, module self‑diagnosis circuit, multi‑channel LED status indicators for power, channel status and fault.
- Power Consumption: Typical 4.2 W.
- Operation Limitation: Cannot operate standalone. Must work with AC800M controller and S800 I/O rack.
- Compatibility Matrix
‑ Compatible System: ABB AC800M, S800 I/O
‑ Matching Terminal Unit: TU880‑1
‑ Hot‑swap: Supported. Module can be plugged / pulled under powered rack condition.
Environmental Specifications
表格
| Item | Value |
|---|---|
| Operating Temperature | ‑40 °C ~ +70 °C inside control cabinet |
| Storage / Transport Temperature | ‑40 °C ~ +85 °C for long‑term spare‑part preservation |
| Relative Humidity | 5 %‑95 % RH, non‑condensing; avoid condensation to prevent circuit corrosion. |
| Compliance Standard | CE certification, complies with industrial EMC requirements. |
| Protection Class | IP20 module body; installed inside protected cabinet. |
| Dimension | Standard S800 module form‑factor |
| Net Weight | Approx. 0.28 kg |
| Vibration Resistance | Complies with IEC 60068‑2‑6 industrial cabinet vibration criteria. |
Main Functions
- DO880‑1 (3BSE028588R1) is 8‑channel dry‑contact relay output module for ABB S800 I/O system under AC800M controller. It converts controller logic commands into relay contact signals for field equipment control.
- 8 independent relay dry‑contact channels, each channel provides galvanic isolation. Suitable for switching different voltage‑level signals, including AC and DC loads, for actuators, alarm lamps and interlock circuits.
- Front‑panel LED indicators reflect power status, module fault and each output channel status for on‑site inspection and troubleshooting. Built‑in self‑diagnosis reports module abnormal status to AC800M controller.
- Typical field failure symptoms
‑ No output action after receiving controller command
‑ Relay contact burnout, cannot close or open
‑ Module communication failure with S800 bus
‑ Individual channel damage caused by field overload or surge voltage
Common root causes: field overload or surge current damaging relay contacts, poor contact of backplane or terminal base connector, dust and moisture contamination on circuit board, relay mechanical wear‑out after long‑term operation.
- Pure maintenance‑oriented spare‑part component, only for repair and replacement of existing legacy AC800M installations; not suitable for new‑project engineering deployment.
Typical Applications
- Spare‑part replacement for DO880‑1 digital output module (3BSE028588R1) in S800 I/O rack.
- Troubleshooting scenarios: field device switching control failure, alarm output malfunction, module bus communication breakdown.
- Preventive‑maintenance spare‑part inventory for power, chemical, pulp‑paper sites equipped with AC800M DCS system.
- Hardware refurbishment for decommissioned S800 I/O assemblies.
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