Description
METSO D201138
Technical Specifications: Mixed digital input and output channels; input supports passive dry‑contact signal; output channel rated 24 VDC, 200 mA per channel; power supply from rack backplane; rack plug‑in installation; operating temperature range 0 ℃‑+55 ℃; each channel independent LED state indicator; channel electrical isolation; protection class IP20.
Functional Features: Integrated discrete‑signal acquisition and switching‑output function; hardware over‑current protection for output loop; loop fault diagnosis; single‑channel fault isolation; module self‑diagnosis; upload status data and fault‑alarm information to DCS host monitoring workstation.
Application Scenarios: Pulp and paper mill workshop equipment local‑control cabinet; thermal power plant auxiliary valve control cabinet; chemical plant on‑site valve local‑control unit; water‑treatment plant pump‑valve combined‑control cabinet.
Performance Parameters: Fast signal response speed; strong surge‑resistance capacity for input‑output loops; stable performance under rated load; satisfy industrial EMC anti‑interference requirement; support 7×24 hours long‑term continuous operation.
Material Composition: Fiberglass epoxy multilayer printed circuit board; optoelectronic isolation chips; power drive semiconductor components; gold‑plated edge connector; metal front baffle; circuit‑board surface coated with three‑proof conformal coating.
Structural Features: Standard rack plug‑in modular card‑type structure; front panel integrates LED indicators for power‑on, running, input‑channel status and output‑channel fault; rear gold‑plated edge connector connects to rack backplane bus; internal input‑circuit area and output‑circuit area are physically separated; mechanical anti‑loose locking buckle installed on front panel.
Working Principle: Field switching feedback signals transmit to D201138 input terminals. Internal isolation circuit converts contact state into digital‑logic signal and transmits to DPU controller. When receiving control command from upper system, internal drive component acts and outputs switching signal to drive field actuators. Module monitors each channel‑loop condition real‑time and triggers alarm when abnormality appears.
Installation Requirements: Insert D201138 module into designated slot of Damatic XD I/O rack and cooperate with matched terminal base. Adopt shielded cables for input‑output signal wiring. Signal cables and high‑power power cables are laid in separate cable trunking. Cabinet protective‑grounding terminal must connect reliably. Keep enough surrounding ventilation space for heat dissipation.
Precautions for Use: Strictly match field signal voltage level before power‑on. Do not exceed rated current load of output channel. Cut off rack backplane power and field load power before wiring maintenance. Wear anti‑static wrist strap during operation. Inspect wiring‑terminal tightness periodically. Prevent dust accumulation and cabinet internal condensation.
