1 pc for used ABB Excitation Sampling Card 1MRK000157-AA#LYQ007
1 pc for used ABB Excitation Sampling Card 1MRK000157-AA#LYQ007
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Part Number | 1MRK000157-AA |
| Product Type | Excitation Sampling Card (Analog Input Module) |
| Application | UNITROL® 6000/6800 Series Excitation Systems |
| Input Channels | Multi-channel analog inputs for voltage/current sampling |
| Input Type | Voltage: -2.5 V…+2.5 V; -5 V…+5 V (bipolar)
|
| Resolution | 12 bits (including sign for bipolar ranges) |
| Accuracy | ±0.7% F.S. (4–20 mA, @+25°C)
|
| Input Filter Time Constant | 300 μs (voltage/current inputs) |
| A/D Conversion Time | Typ. 500 μs per channel |
| Input Impedance | Voltage: >1 MΩ
|
| Overvoltage Protection | Up to 30 V DC (voltage inputs only) |
| Operating Voltage | 24 V DC (system bus) |
| Operating Temperature | 0°C to +60°C |
| Isolation | Channel-to-channel, channel-to-system (per ABB safety standards) |
| Communication Interface | Backplane bus (compatible with UNITROL® 6000 main CPU) |
| Mounting | DIN rail or rack mounting (excitation control cabinet) |
| Dimensions | Standard ABB control card form factor |
| Weight | Approx. 0.5 kg |
| Certifications | CE, IEC 61131-2, relevant power generation standards |
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