Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 | |||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Analog Input Module |
| Model Number | 07AI91 WT91 GJR5251600R4202 |
| Number of Analog Inputs | 8 (configurable in pairs) |
| Signal Types Supported | ±10 V, ±5 V, ±500 mV, ±50 mV, 0…20 mA, 4…20 mA, Pt100, Pt1000, TC (J, K, S) |
| Resolution | 12-bit + sign |
| Supply Voltage | 24 V DC |
| Current Consumption | Max. 0.15 A |
| Power Dissipation | Max. 3 W |
| Permissible Operating Temperature | 0…55 °C |
| Protection Against Reverse Polarity | Yes |
| Measuring Range (Voltage Inputs) | ±10 V, ±5 V, ±500 mV, ±50 mV |
| Input Resistance (Voltage Inputs) | > 1 MΩ |
| Measuring Range (Current Inputs) | 0…20 mA, 4…20 mA (requires external 250 Ω shunt) |
| Evaluation Range (Pt100 / Pt1000) | -50 to +400 °C |
| Evaluation Range (Thermocouples) | J: 0…1200 °C, K: 0…1372 °C, S: 0…1600 °C |
| Error (Pt100 / Pt1000) | ±0.5 % FS (Pt100), ±1.0 % FS (Pt1000) |
| Error (Thermocouples) | ±0.5 % FS |
| Update Time (per channel) | 100 ms (50/60 Hz suppression), 30 ms (no suppression), 150 ms (TC input) |
| Line Frequency Suppression | Configurable: 50 Hz, 60 Hz, or None |
| Electrical Isolation | Between CS31 system bus and analog section |
| Mounting Method | DIN rail (EN 50022-35), or 4 x M4 screws |
| Wiring Method | Removable terminal blocks with screw terminals |
| Conductor Cross-section | Max. 2.5 mm² |
| System Bus Interface | CS31, EIA RS-485 |
| Diagnostic Indicators | 17 LEDs total (Channel status and error display) |
| Module Address Configuration | DIL Switch under housing cover |
| Cooling Method | Natural convection (ensure free airflow) |
| Installation Position | Vertical (terminals facing up/down) |
| Dimensions (W x H x D) | 120 × 140 × 85 mm |
| Weight | 0.45 kg (450 g) |
FAQ
Frequently Asked Questions (FAQ)
Q1: What types of signals can the ABB 07AI91 WT91 module handle?
A1: The module supports a variety of input types including voltage signals (±10 V, ±5 V, ±500 mV, ±50 mV), current signals (0…20 mA, 4…20 mA with a 250 Ω shunt), Pt100/Pt1000 RTDs, and thermocouples of types J, K, and S.
Q2: Can I connect Pt100 and Pt1000 sensors simultaneously?
A2: Yes, Pt100 and Pt1000 sensors can be operated simultaneously by assigning one type to the upper terminal bank and the other type to the lower terminal bank.
Q3: What is the resolution of the analog input values?
A3: The input resolution is 12-bit plus sign, which ensures high accuracy for analog signal acquisition.
Q4: How is error detection performed in this module?
A4: The module includes built-in diagnostics for open circuit detection, out-of-range signals, internal errors, and transmission errors. Errors are indicated via the red LED and communicated to the central unit.
Q5: What is required to measure current signals such as 4…20 mA?
A5: An external 250 Ω shunt resistor is required between input terminals to measure 4…20 mA or 0…20 mA signals using voltage input ranges.
Q6: What kind of electrical isolation is implemented?
A6: The CS31 system bus is electrically isolated from the analog input section, ensuring signal integrity and protection.
Q7: What happens if a thermocouple wire breaks?
A7: A wire break results in the numerical value -32767 being displayed and an error message is generated and transmitted over the CS31 system bus.
Q8: What should be done with unused input channels?
A8: Unused channels must be short-circuited. For Pt100 and Pt1000 channels, it is recommended to bridge them with 120 Ω and 1200 Ω resistors respectively to avoid underflow error messages.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
