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Phone: +86 16626708626Description
Product Core Brief
- Model: 1MRK000508-CDr09
- Brand: ABB
- Series: Relion Protection & Control (BIM)
- Core Function: 16-channel binary input module
- Product Type: Digital input card for relays
- Key Specs: 220-250 VDC, 50 mA per input
- Condition: New Surplus
Key Technical Specifications
- Inputs: 16 isolated binary inputs
- Voltage range: 220-250 VDC operating
- Input current: 50 mA typical per channel
- Operating temperature: -20°C to +70°C
- Storage temperature: -40°C to +85°C
- Humidity: 5% to 95% RH non-condensing
- Vibration: 5 g continuous
- Isolation: 2.5 kV channel-to-channel
- Power consumption: <3 W total module
- Dimensions: 160 x 100 x 55 mm (4U case fit)
- Weight: 0.41 kgquad-industry+2
Product Introduction
ABB 1MRK000508-CDr09 is a 16-channel binary input module for Relion series protection relays like REG670/RET670. Reads high-voltage DC status from circuit breakers, E-stops, and auxiliary contacts via isolated opto inputs.
-r09 revision adds extended diagnostics over base CDR03 for SIL2 apps. Installs in relay case slot B5-B7; scans at 4 kHz with debouncing. Field units monitor 69 kV breakers in substations—needs 250 VDC external wetting. Verify firmware match with PCM600 before rack-up.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| All inputs read false (0) | 220 VDC <180 V or fuse chain open | ✅ High | Measure channel 1+ to COM >200 VDC with Fluke 87 | Check external fuses 100 mA; verify polarity + to IN |
| Channel 3+ stuck high | Stuck opto or crosstalk from adjacent | ✅ High | Force ground to input; multimeter <2 V pull-low | Clean optical slot; isolation test 2.5 kV megohmmeter |
| Intermittent drops at 50 Hz | Common mode noise >150 V or ground lift | ✅ Medium | Scope common mode on inputs >100 Vp-p | Single-point ground; add 0.1 µF/1kΩ snubbers per ch |
| No module detect in PCM600 | Slot address conflict or backplane | ✅ Low | Relay HMI shows empty slot B6; reseat 3x | Power cycle relay; clear config cache in PCM600 |
| Overheat alarm at 60°C | Blocked case vents or 3 W draw | ❌ Low | IR probe >65°C on PCB; airflow test | Vertical mount 19″ rack; clean dust filter yearly |
Dump input status buffer (%BD001-016) before reset. BIM cards fail from surges 80%—add MOVs on field side. Photo LEDs for support.
- 1MRK000508-CDr09
Frequently Asked Questions (FAQ)
Input voltage exactly 220-250 VDC?
Yes, no AC—high-level DC only. Below 180 V drops out; add buffer relay for 24/48 V field contacts.
-r09 vs -r03—what upgrades?
Extended debouncing (0.25-250 ms per channel), SIL2 diagnostics, faster scan. Read label; PCM600 v2.8+ required.
Max cable run from CTVT cabinet?
500 m twisted pair 0.75 mm²; longer needs repeaters. Shield one end; route >30 cm from power cables.
Hot-swappable in live relay?
No—live extract arcs backplane. Full shutdown rack; ESD strap mandatory. Latch clicks firm or reseat.
❗ Common wiring trap?
❗ COM terminal floating—inputs float high randomly. Hard ground COM to station earth. Chased false trips 6 hours once.
Condition and test process?
New Surplus: OEM stock, full 250 VDC wet test all 16 channels + isolation hi-pot. Debounce verified; no dead optos. Reports ready.
Warranty, lead time?
1-year DOA. In stock, ships post burn-in cycle. Same-day if before noon.
