ABB PFVI401
ABB PFVI401 - Image 2

ABB PFVI401

Product Brief:​ The PFVI401 is a local panel-mount or DIN-rail mounted tension indicator and setpoint display​ that receives the conditioned tension signal (0–10 V / 4–20 mA) from a PFSA140 or PFTL301E amplifier/transmitter and displays the actual web tension in engineering units (N, kN, lbf). It may also provide setpoint comparison​ (actual vs. target) and alarm relay outputs for hi/lo tension deviation — useful on operator stations distant from the amplifier. Some versions include a simple keypad to adjust the reference setpoint which is fed back to the tension controller or drive PID.

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Category: SKU: ABB PFVI401

Description

ABB PFVI401

  • Technical Specifications (typical):
    • Input Signal: 0–10 V DC, 0/4–20 mA (selectable)
    • Display: 4–5 digit 7-segment LED, ±19999 count; selectable decimal point
    • Engineering Units: Programmable — N, kN, lbf, kgf (via DIP or menu)
    • Setpoint Function: 1 or 2 setpoints (Hi / Lo) with relay outputs (SPDT 250 V AC 2 A typical)
    • Power Supply: 100–240 V AC or 24 V DC (model dependent)
    • Accuracy: ±0.2 % of FSD + input accuracy
    • Mounting: Panel cutout (96 × 48 mm DIN 43700) or DIN rail with bezel
    • Operating Temp.: –10 °C to +50 °C
    • Dimensions (behind panel): ≈90 × 45 × 110 mm
  • Functional Features:
    • Large bright LED for operator visibility on line
    • Alarm relays can trigger slack-web alarm (Lo) or web break / over-tension (Hi) → stop machine or reduce speed
    • Trend indication via bar graph (on some versions)
    • Can be daisy-chained — multiple PFVI units on same analog signal for distributed readouts
  • Application Scenarios:
    • Operator display at unwind / rewind stand showing current tension
    • Tension deviation alarm — e.g., Lo alarm → “Web Slack” → initiate re-thread sequence
    • Companion to PFSA140 in older tension cabinets where digital display not on amplifier
  • Material & Structure / Working Principle / Installation / Precautions:
    • Mount in operator panel cutout; wire analog input from PFSA140/PFTL301E output; wire relay contacts to machine PLC/alarm annunciator
    • Set display range & units to match transducer rated load (e.g., 0–5000 N for 5 kN PFRL)
    • Adjust Hi/Lo setpoint pots or via keypad if version allows
    • Precaution:​ If used with alarm relays — test Hi/Lo function during commissioning; ensure alarm logic in PLC matches relay NO/NC wiring (typically NC for fault-safe — alarm contact closes on fault; verify per machine safety requirement)

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