ABB CMA136 3DDE300416 Digital Input Terminal Board

Technical Specifications Part Number: 3DDE300416 Model: CMA136 Channel Quantity: Multi‑group digital‑input channels Input Signal Type: Field‑site contact‑type switch‑state discrete signal Galvanic Isolation: Optocoupler isolation between field‑side and control‑logic‑side 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 terminal board Protection Class: IP20 Certifications: CE

Functional Features Multi‑channel design for batch collection of field‑site switch‑contact status signals. Each input channel adopts optocoupler galvanic‑isolation structure to restrain field‑site ground‑loop interference. Built‑in RC filter circuit eliminates switch‑contact bounce and high‑frequency interference pulse. Converts field‑site switch‑state signal into internal logic‑level signal and transmits to Synpol D main control board. Front‑panel multi‑group LED indicators display real‑time on‑off status of each input channel. Plug‑in rack‑mount mechanical‑structure supports convenient on‑site spare‑part replacement.

Application Scenarios Synpol D turbine control system multi‑channel digital‑input terminal‑board spare‑part replacement. Power‑plant steam‑turbine auxiliary‑machine group mass‑discrete‑signal acquisition control cabinet.

Installation Requirements Align CMA136 board with Synpol D rack slot guide‑rail, insert board in place and lock board‑edge locking buckle. Connect field‑site multi‑channel switch‑contact signal cables to front‑side screw‑type terminals, tighten terminals to specified torque value. Complete cabinet protective earthing complying with Synpol D system grounding specifications. Separate digital‑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 input voltage exceeding rated‑input range to each digital‑input channel. Periodically inspect front‑side multi‑group wiring‑terminal fastening status and clear cabinet dust accumulation.