Technical Specifications Model: CMA126 System Compatibility: ABB Synpol D control rack Signal Type: Multi‑channel analog input and analog output Signal Level: Standard industrial millivolt and voltage analog signals Power Supply: Supplied by Synpol D rack internal back‑plane Operating Temperature: 0 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Mounting Type: Synpol D rack plug‑in circuit board Protection Class: IP20 Certifications: CE
Functional Features Completes amplification, filtering and galvanic isolation for field‑site analog input signals. Converts internal control logic signals into standard analog output signals for field‑site actuators. Built‑in surge‑protection circuit for each analog signal channel. Realizes signal electrical isolation between field‑site side and control‑rack internal logic circuit, eliminates ground‑loop interference. Supports on‑board signal test points for on‑site maintenance and signal measurement. Plug‑in rack‑mount board structure facilitates spare‑part replacement inside Synpol D rack.
Application Scenarios Synpol D turbine control system analog signal interface board spare‑part replacement. Power‑plant steam‑turbine auxiliary control cabinet analog signal acquisition and output signal processing.
Installation Requirements Align CMA126 circuit‑board with Synpol D rack slot guide‑rail, insert board in place and lock board‑edge locking mechanism. Connect field‑site analog‑signal cable to front‑side signal connector. Complete cabinet protective earthing complying with Synpol D system grounding specifications. Separate analog‑signal cables and high‑power power‑cables. Reserve ventilation‑heat‑dissipation space around rack slot. Ambient operating temperature must stay within 0 ℃ ~ +60 ℃ without condensation.
Usage Notes Do not apply analog‑input signal exceeding rated‑range limit to signal channels. Periodically clear cabinet dust accumulation to guarantee back‑plane connector contact reliability.
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