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Technical Specifications and Module Design
This analog input module interfaces with field sensors for ABB AC500 PLC systems. The ABB 1SAP250300R0001 converts voltage and current signals into digital values for the CPU. You can mount this module directly onto a standard DIN rail in your cabinet. Its compact design requires no additional rack or backplane hardware. The module weighs approximately 0.16 kilograms. Its dimensions measure 9.5 cm in height, 6 cm in width, and 7 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 1SAP250300R0001 |
| Category | Analog Input Module / Signal Converter Unit |
| Weight | 0.16 kg |
| Height | 9.5 cm |
| Width | 6 cm |
| Depth | 7 cm |
| Number of Inputs | 4 differential channels |
| Input Voltage Range | 0-10V DC, ±10V DC (selectable) |
| Input Current Range | 0-20 mA, 4-20 mA (selectable) |
| Input Impedance | 100 kΩ (voltage), 250 Ω (current) |
| Resolution | 14-bit (0.0006V or 0.0012 mA) |
| Accuracy | ±0.1% of full scale at 25°C |
| Conversion Time | 4 milliseconds per channel |
| Common Mode Rejection | 80 dB at 50/60 Hz |
| Isolation Voltage | 500V DC between channels and logic |
| Energy Storage | None (no battery) |
| Component Count | Single PCB with ADC, amplifiers, and optocouplers |
Signal Processing and Input Conditioning
Each channel accepts either voltage or current signals independently. You can select the input type using the configuration software. The ABB 1SAP250300R0001 provides programmable gain amplification for low-level signals. Built-in anti-aliasing filters remove high-frequency noise from input signals. The module converts all four channels sequentially with automatic channel scanning. A green LED indicates when each channel is active during scanning. The inputs tolerate overvoltage up to ±30V without damage.
Wiring and Group Isolation
The module uses a front-panel screw terminal strip for field wiring connections. This terminal strip accepts wire sizes from 0.2 to 1.5 square millimeters. The ABB 1SAP250300R0001 provides 500V isolation between input channels and the backplane. Consequently, ground loops will not affect measurement accuracy. Each input includes overvoltage protection up to 220V AC. The module connects to adjacent units through integrated side connectors. You can mix voltage and current inputs across the four channels freely.
Installation and Operational Guidelines
You must clip this module onto a standard 35 mm DIN rail securely. The module connects to the CPU or bus coupler through side connectors. The ABB 1SAP250300R0001 draws its power from the bus coupler or CPU. It requires no separate external power supply for operation. You must use shielded twisted-pair cables for all analog input connections. This practice prevents electrical noise from corrupting low-level signals. The module stores no configuration data independently. Therefore, the CPU retains all scaling and calibration values. The operating temperature ranges from -20°C to +60°C.