Technical Specifications Control‑system‑side signal interface, drive‑side signal interface. Auxiliary DC module power supply. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Galvanic isolation between two signal sides.
Functional Features Provides electrical isolation between automation control system and external drive equipment. Completes level conversion for binary control command and status feedback signals. Front‑panel LED indicators show module power‑on and signal transmission status. Suppresses interference signal from drive side to protect control‑system circuit.
Application Scenarios Spare drive signal isolation interface module for industrial automation cabinet. Used for PLC‑to‑drive signal matching and isolation processing.
Performance Parameters Stable binary signal transmission performance. High‑isolation voltage withstand capability. Reliable industrial anti‑interference characteristic.
Material Composition Flame‑retardant plastic DIN‑rail module housing. Multilayer glass‑fiber epoxy printed circuit board. Isolation assembly, signal conditioning and driving circuit. Screw‑type wiring terminals and DIN‑rail mounting buckle.
Structural Characteristics Compact DIN‑rail module structure. Two sides equipped with screw‑type wiring terminals for control‑system side and drive‑side connection. Rear side has DIN‑rail fixing buckle. Status LED indicators arranged on module front surface.
Working Principle SDN‑DRI‑025 obtains auxiliary working power. Control commands from automation system pass through isolation circuit and are transmitted to drive equipment. Status feedback signals from drive side go through isolation and are sent back to control‑system input channel. Galvanic isolation blocks interference and ground loop.
Installation Requirements Disconnect module auxiliary power and related signal circuits before replacement. Snap SDN‑DRI‑025 onto standard DIN‑rail inside cabinet. Complete control‑system‑side wiring and drive‑side wiring. Restore auxiliary power supply, verify bidirectional signal transmission function.
Usage Notes Signal wiring polarity must comply with terminal definition. Hot‑plug under powered condition is prohibited. Confirm isolation rating matches site environment requirement.
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