Overview
Configured for overspeed detection and thrust wear monitoring in Symphony Plus and Infi 90 systems, the ABB SPTPS02 (SPTPS02 Turbine Protection Slave Module) provides direct physical interface to magnetic pick-ups and eddy-current probes for real-time turbine safeguarding.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model Brand | ABB SPTPS02 |
| Origin | Sweden |
| Weight | 0.4 kg |
| Dimensions | 17.8 x 5.1 x 33.0 cm |
| Operating Temp | -25 to +70 degC (rack air) |
| Storage Temp | -40 to +85 degC |
| Humidity | 5 to 95 % RH non-condensing |
| Power Supply | 24 V DC +/-20 %, 6 VA |
| Overspeed Inputs | 3 x magnetic pick-up |
| Thrust Wear Inputs | 2 x eddy-current probes |
| Temperature Inputs | 8 x TC/RTD/mA |
| Valve Position Inputs | 4-20 mA |
| Analog Inputs | 8 isolated, 16-bit |
| Digital Inputs | 8 x 24 V DC |
| Analog Outputs | 2 x 4-20 mA |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The module interfaces with the Symphony Plus and Infi 90 backplane bus using deterministic cyclic data exchange. Firmware revisions must match the host rack controller configuration to ensure consistent I/O mapping. Channel scaling is performed via firmware-resident lookup tables, maintaining signal integrity during hot-swap events without requiring recalibration.
Frequently Asked Questions
Q: Does the SPTPS02 support hot-swap replacement without powering down the rack?
A: Yes, provided the rack’s power budget supports inrush current and firmware versions are identical.
Q: What is the analog input isolation rating between channels?
A: All eight analog inputs are galvanically isolated from each other and from the backplane.
Q: Can the temperature inputs be freely mixed between TC and RTD types?
A: Yes, per-channel software configuration allows independent assignment of TC, RTD, or mA modes.
Field Installation Guidelines
Mount the module directly onto the DIN-rail compatible subrack with secure latching. Ensure shield terminations of all analog and probe cables connect to the rack ground at a single point to prevent ground loops. Maintain separation of 24 V DC power wiring from signal cabling to minimize EMI coupling. Verify torque specifications on terminal screws to avoid contact resistance drift over thermal cycles.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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