Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | VIPA 331-7KF01 |
| Manufacturer | VIPA (Yaskawa Europe) |
| Product Type | Analog Input Module (SM 331) |
| Series | VIPA System 300S |
| Number of Inputs | 8 channels, configurable in 4 groups of 2 channels |
| Resolution | 12 bits (temperature measurement: 14 bits) |
| Measurement Principle | Sigma-Delta |
| Voltage Input Ranges | ±80 mV, ±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, ±10 V, +1…5 V |
| Current Input Ranges | ±3.2 mA, ±10 mA, ±20 mA, 0…20 mA, 4…20 mA |
| Resistance Input Ranges | 0…150 Ω, 0…300 Ω, 0…600 Ω |
| RTD Inputs (Resistance Thermometers) | Pt100, Ni100 |
| Thermocouple Types (TC) | J, K, N, L, E, T, S, B, C, R |
| Input Resistance (Voltage Range) | Min. 100 kΩ |
| Input Resistance (Current Range) | Max. 85 Ω |
| Basic Conversion Time | 4 ms, 18 ms, 22 ms, 68 ms per channel (configurable) |
| Noise Suppression Frequency | 60/50 Hz |
| Cable Length, Shielded | Max. 50 m |
| Rated Load Voltage | DC 24 V |
| Current Consumption (Backplane Bus) | 95 mA |
| Current Consumption (Load Voltage L+) | 100 mA (without load) |
| Power Loss | 3 W |
| Isolation | Electrical isolation between the channels and backplane bus; test voltage 500 V DC |
| Status Indicators | Group error red SF LED; per-channel red error LEDs |
| Front Connector | 20-pin |
| Dimensions (W×H×D) | 40 × 125 × 120 mm |
| Weight | Approx. 240 g |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -25 °C to +70 °C |
| Protection Class | IP20 (cabinet installation only) |
| Approvals | UL, KC |
Main Features and Advantages
Flexible and Universal Input Capabilities: The VIPA 331-7KF01 can handle almost any analog signal found in industrial environments. Whether it’s a 4-20 mA current loop from a pressure transmitter, a 0-10 V signal from a potentiometer, a Pt100 RTD for temperature, or thermocouple types B, C, J, K, L, N, R, S, T, and E , the module can be configured accordingly. All configuration is performed via software, eliminating the need for mechanical jumpers or range plugs, which reduces setup time and potential hardware errors . This universal design makes the VIPA 331-7KF01 a single solution for a wide range of field signal types, simplifying spare parts management.
Software Configuration and Diagnostics: The complete parameterization of the VIPA 331-7KF01 is done through the hardware configuration software. Users can set up diagnostic and process interrupts, enabling the PLC to react immediately to events like wire breaks or out-of-range signals . The module provides comprehensive diagnostics with a red SF (group error) LED and individual channel error LEDs (F0 to F7), which help maintenance teams quickly pinpoint which channel is experiencing an issue, such as an overflow or a missing external supply voltage . This feature streamlines troubleshooting and minimizes downtime, as the cause of a fault can be visually identified on the VIPA 331-7KF01 itself.
High Precision and Resolution: The VIPA 331-7KF01 utilizes a Sigma-Delta conversion principle and delivers a resolution of up to 14 bits for temperature measurements . This allows it to capture minute variations in sensor signals, making it suitable for precision control applications. The module’s basic error limits are highly competitive: ±0.4% to ±0.7% for voltage ranges, ±0.5% for current and resistance ranges, and ±0.7% to ±1.0% for thermocouple ranges . This level of accuracy, combined with configurable integration times that provide noise suppression for common frequencies (like 50/60 Hz), ensures that the VIPA 331-7KF01 delivers reliable and stable data in electrically noisy industrial settings .
Compatibility and Seamless Integration: The VIPA 331-7KF01 is designed to be a drop-in replacement for Siemens S7-300 analog modules in many aspects, offering pin and function compatibility . This means it can be integrated into existing Siemens-based systems with minimal engineering effort. For VIPA’s SPEED7 systems, the VIPA 331-7KF01 leverages the high-speed backplane bus for rapid data exchange with the CPU . This combination of compatibility and enhanced performance makes the VIPA 331-7KF01 an excellent choice for expanding or upgrading existing automation systems, offering a cost-effective alternative without compromising on quality.
