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Wago 857-531
Short description:This threshold value switch for analog signals monitors standard analog signals and reports signals exceeding a preset threshold.Configurable digital switching output:GND switching:…
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Description
Short description:This threshold value switch for analog signals monitors standard analog signals and reports signals exceeding a preset threshold.Configurable digital switching output:GND switching: The digital output (DO) is switched to “GND” for all input values that are smaller than the lower switching threshold or greater than the upper switching threshold.Us switching: For all input values that are smaller than the lower switching threshold or greater than the upper switching threshold, the digital output (DO) adopts the value of the supply voltage. The preset switching thresholds are 0% and 100% (±0.25 V / ±0.5 mA) of the input measurement range. The switching thresholds can be adjusted via the interface configuration software. Features:PC configuration interfaceChangeover relay outputCalibrated measurement range switchingThreshold value configuration via DIP switch and teach-in function via push/slide switch3-way electrical isolation with 3 kV test voltage
Specification
Notes
| Safety Information | The input and digital output must be safely isolated from hazardous live parts! |
|---|---|
| Note | Use shielded signal cables!Only use shielded signal cables for analog input and output signals.This ensures the device maintains its specified accuracy and immunity to interference, even when external disturbances affect the signal cable., Additional setting options via the WAGO Interface Configuration Software |
Technical data - Configuration
| Configuration options | DIP switch, WAGO Interface Configuration Software, Push/slide switch |
|---|
Technical data - Input
| Input signal type | Voltage, Current |
|---|---|
| Input signal (voltage) | ±10 V, 0 … 30 V |
| Input signal (current) | ±20 mA |
| Input resistance (current input) | ≤ 200 Ω |
| Input resistance (voltage input) | ≥ 100 kΩ |
| Input current (max.) | 22 mA |
| Input voltage (max.) | 31 V |
Technical data - Output (digital)
| Switching voltage (DO) max. | Supply voltage applied |
|---|---|
| Continuous current (DO) max. | 100 mA (no internal restriction) |
| Number of switching thresholds (DO) | 2 (adjustable) |
Technical data - Output (relay)
| Number of changeover/switchover contacts | 1 |
|---|---|
| Switching Voltage, Max. | 250 VAC |
| Switching power (resistive) max. | AC 1500 VA; DC (see load limit curve) |
| Drop-out time (typ.) | 4 ms |
| Number of switching thresholds (relay) | 1 or 2 (adjustable) |
| Configurable rise/fall delay time (relay) | 0 … 30 s (via software) |
| Continuous current (max.) | 6 A |
Technical data - Signal processing
| Hysteresis | Adjustable via DIP switch or software (valid for relays and DO) |
|---|---|
| Step response (typ.) | 16 ms |
Technical data - Measurement error
| Transmission error (typ.) | ≤ 0.1 % of upper-range value |
|---|---|
| Temperature coefficient | ≤ 0.01 %/K |
Technical data - Power supply
| Power supply type | 24 VDC (SELV) |
|---|---|
| Nominal supply voltage U<sub>S</sub> | 24 VDC |
| Supply voltage range | ±30 % |
| Current consumption at nominal supply voltage | ≤ 25 mA (+ IDO) |
Safety and protection
| Rated voltage | 300 V |
|---|---|
| Protection type | IP20 |
Safety and protection - Test voltage
| Test voltage (input/relay output/supply) | 3 kVAC; 50 Hz; 1 min |
|---|
Safety and protection - Insulation coordination
| Overvoltage category | II |
|---|---|
| Pollution degree | 2 |
| Insulation type (input/supply) | Reinforced insulation (safe isolation) |
| Insulation type (relay) | Reinforced insulation (safe isolation) |
| Insulation type (adjacent devices) | Reinforced insulation (safe isolation) |
Connection data
| Connection technology | Push-in CAGE CLAMP® |
|---|---|
| Solid conductor | 0.08 … 2.5 mm² / 28 … 14 AWG |
| Fine-stranded conductor | 0.34 … 2.5 mm² / 22 … 14 AWG |
| Strip length | 9 … 10 mm / 0.35 … 0.39 inches |
Physical data
| Width | 6 mm / 0.236 inches |
|---|---|
| Height | 94 mm / 3.701 inches |
| Depth from upper-edge of DIN-rail | 97.8 mm / 3.85 inches |
Mechanical data
| Mounting type | DIN-35 rail |
|---|
Material data
| Insulation material (main housing) | Polyamide (PA66) |
|---|---|
| Flammability class per UL94 | V0 |
| Fire load | 0.013 MJ |
| Weight | 38.6 g |
Environmental requirements
| Ambient temperature (operation) | -25 … +70 °C |
|---|---|
| Ambient temperature (storage) | -40 … +85 °C |
| Temperature range of connection cable | ≥ (Tambient + 35 K) |
| Relative humidity | 5 … 85 % (no condensation permissible) |
| Operating altitude (max.) | 2000 m |
Standards and specifications
| Conformity marking | CE |
|---|---|
| EMC immunity to interference | EN 61000-6-2; EN 61131-2; EN 61326-1; EN 50121-3-2 |
| EMC emission of interference | EN 61000-6-4; EN 61131-2; EN 61326-1; EN 50121-3-2 |
| Standards/specifications | EN 61373 |
Commercial data
| Product Group | 6 (INTERFACE ELECTRONIC) |
|---|---|
| PU (SPU) | 1 pcs |
| Packaging type | bag |
| Country of origin | DE |
| GTIN | 4066966662375 |
| Customs tariff number | 90303370000 |
Product Classification
| UNSPSC | 39122331 |
|---|---|
| eCl@ss 10.0 | 27-21-01-20 |
| eCl@ss 9.0 | 27-21-01-20 |
| ETIM 9.0 | EC002653 |
| ETIM 10.0 | EC002653 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| CAS-No. | 1303-86-2, 1317-36-8, 7439-92-1, 75980-60-8, 79-94-7, 80-05-7 |
|---|---|
| REACH Candidate List Substance | 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol, 4,4'-isopropylidenediphenol, Diboron trioxide, Lead, Lead monoxide, Phosphine oxide, diphenyl(2,4,6-trimethylbenzoyl)- |
| RoHS Compliance Status | Compliant,With Exemption |
| RoHS Exemption | 6(c), 7(a), 7(c)-I, 7(c)-II |
| SCIP notification number (Bulgaria) | 70c9867b-9228-49b1-8871-0ff4880135a1 |
| SCIP notification number (Czech Republic) | 475d917f-e72d-4462-a17f-b1550a3b1393 |
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