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Overview
The DI821 (Article Number: 3BSE008550R1) is an 8-channel digital input module designed for the S800 I/O system. It handles 230 V a.c. and 220 V d.c. inputs with individually isolated channels. Each input is equipped with current limiting components, EMC protection, input state indication LEDs, optical isolation barriers, and analog filtering. Channels 1 and 8 provide voltage supervision for other input groups, ensuring the reliability of field input power.
Key Features & Benefits
- 8 Channels for 230 V a.c. / 220 V d.c. inputs
- Individually isolated channels for improved safety and performance
- Voltage supervision for channels 2-4 (via Channel 1) and 5-7 (via Channel 8)
- Signal filtering options for better noise reduction (2, 4, 8, 16 ms)
- Input status indicators for easy monitoring of each channel’s health
- Error detection when voltage disappears on channels 1 or 8, with corresponding warning LED
Technical Specifications
| Feature | Value |
|---|---|
| Input Voltage Range | 0-50 V a.c. (0-40 V d.c.) for “0” |
| 164-264 V a.c. (175-275 V d.c.) for “1” | |
| Input Impedance | 21 kΩ (a.c.) / 134 kΩ (d.c.) |
| Filter Times | 2, 4, 8, 16 ms |
| Analog Filter Delay | 5 ms (on), 28 ms (off) |
| Input Frequency Range | 47-63 Hz |
| Maximum Cable Length | 200 meters (219 yards) for a.c., 600 meters (656 yards) for d.c. |
| Rated Insulation Voltage | 250 V |
| Dielectric Test Voltage | 2000 V a.c. |
| Power Dissipation | Typ. 2.8 W |
| Current Consumption (5 V ModuleBus) | 50 mA |
| Current Consumption (24 V ModuleBus) | 0 mA |
| Current Consumption (24 V External) | 0 mA |
Diagnostics
- Front LEDs: Fault (F), Run (R), Warning (W), Channel 1-8 Status
- Supervision: Channels 1 and 8 supervise the voltage for groups of channels
- Error Indication: Module Error, Module Warning, Channel Error
Environmental & Certification
- CE Mark: Yes
- Electrical Safety: EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201
- Temperature (Operating): 0 to +55 °C (+32 to +131 °F)
- Temperature (Storage): -40 to +70 °C (-40 to +158 °F)
- Pollution Degree: Degree 2, IEC 60664-1
- Corrosion Protection: ISA-S71.04: G3
- Relative Humidity: 5 to 95 %, non-condensing
- Protection Class: IP20 according to IEC 60529
- EMC Compliance: EN 61000-6-4, EN 61000-6-2
- Overvoltage Categories: IEC/EN 60664-1, EN 50178
- Equipment Class: Class I according to IEC 61140 (earth protected)
- RoHS Compliance: DIRECTIVE/2011/65/EU (EN 50581:2012)
- WEEE Compliance: DIRECTIVE/2012/19/EU
Compatibility
- Use with MTU: TU811, TU813, TU831, TU839, TU851
- Keying Code: AC
Dimensions
- Width: 45 mm (1.77”)
- Depth: 102 mm (4.01”), 111 mm (4.37”) including connector
- Height: 119 mm (4.7”)
- Weight: 0.18 kg (0.4 lbs.)
About Us
Meloauto – Your Trusted Supplier for Original, Brand-New PLC and DCS Parts Meloauto offer a vast selection of products from globally recognized brands, including Allen Bradley, Bently Nevada, Honeywell, ABB, GE Fanuc, Siemens, Invensys Triconex, ICS Triplex, Foxboro, Yokogawa, Schneider, and Hima, among others. With tens of thousands of new parts ready to ship, Meloauto has successfully served customers across over 50 countries worldwide. We focus on supplying discontinued and hard-to-find items, ensuring each product is in brand-new, original condition.Contact Us
- Phone: +86-15915488782
- Email: [email protected]
- WhatsApp: +8615915488782
- Business Hours: 24/7 service
- Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China
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