ABB PFTL201C 10KN 3BSE007913R10

ABB PFTL201C 10KN 3BSE007913R10

Product Brief:​

The PFTL201C is a passive sensor​ (no electronics inside) based on the magnetoelastic (Villari) effect: a ferromagnetic core inside the cell is wound with an excitation coil (primary) and a measurement coil (secondary). When an AC excitation voltage (typically 5–10 V rms @ 2–5 kHz) is applied, the core’s magnetic permeability changes proportionally to applied compressive force → induces a secondary voltage proportional to force × excitation. This low-level AC signal (≈0–30 mV) is conditioned by the PFEA111/113 amplifier which supplies the excitation and performs demodulation, linearization, tare, scaling to 4–20 mA / ±10 V.

Request Quote
Category:

Description

ABB PFTL201C 10KN 3BSE007913R10

  • Working Principle (Magnetoelastic / Villari Effect):
    1. AC excitation (V_exc, typically 10 V rms @ 2–5 kHz) applied to primary winding from PFEA amplifier → establishes alternating magnetic flux in ferromagnetic core
    2. Applied compressive force F along cell axis → alters domain alignment → changes magnetic permeability μ(F) → induces proportional secondary voltage V_sig(F) in measurement winding (V_sig ∝ μ(F) × V_exc)
    3. PFEA amplifier measures V_sig (synchronously demodulated) → linearizes per stored calibration (Sensitivity S in mV/V) → computes Force = (V_sig / V_exc) × (Rated Force / S)
    4. Tare (zero) subtracts no-load offset (recorded with web slack / roll lifted)
    5. Scaled output (4–20 mA, ±10 V) sent to DCS / tension controller; alarm relays evaluate web-break (<Break % FS for >Break Time) & overload (>Overload % FS)
  • Installation Requirements:
    1. Prepare Mounting Seats:​ Top & bottom reaction plates (or load shoes) must be flat (≤0.02 mm/mm flatness), parallel, free of burrs / weld spatter. Surface hardness ≥HB 200 (mild steel OK).
    2. Position Cell:​ Place PFTL201C between seats — align dowel pins on cell with matching holes in seats — tighten set screws / clamp plates to specified torque (AB doc — typically just enough to prevent slip; do NOT overtighten — cell must be free to compress axially)
      • Important: The cell is loaded only through its end faces​ — dowel pins locate but do NOT carry load; body must not contact surrounding structure (clearance ≥1 mm)
    3. Connect Cable:​ Run shielded twisted pair (Excite+/–, Sig+/–) + shield drain wire → terminate in PFEA amplifier:
      • Excite+ → PFEA Excite+
      • Excite– → PFEA Excite–
      • Sig+ → PFEA Sig+
      • Sig– → PFEA Sig–
      • Shield → PFEA Shield terminal → bond to panel PE bus (star ground — one end only, at PFEA side)
    4. Verify Excitation Match:​ In PFEA menu select excitation voltage / frequency matching cell spec (typically 10 V rms / 2.5 kHz for PFTL201C — check nameplate / cert)
    5. Power Up PFEA:​ Check Signal Level bar graph on PFEA — with no load should read near zero (after tare) or small offset (record as tare value)
    6. Perform Tare:​ With web cut / roll lifted (zero tension on cell) → press Tare on PFEA → stores offset. Verify reading = 0 (or near 0 within noise)
    7. Calibrate Full Scale:​ Either enter known FS (10 kN) in PFEA — or if a known calibrated weight / dead-weight can be hung / rolled across → verify mA output corresponds (e.g., 5 kN → 12 mA for 4–20 mA = 0–10 kN)
    8. Set Alarms:​ Web Break LoLo (e.g., <5 % FS for >0.2 s) → Web Break relay; Overload HiHi (e.g., >110 % FS) → Overload relay
    9. Document:​ Record cell Serial #, Calibration Sensitivity (mV/V), FS value (10 kN), tare reading, install date — keep Calibration Certificate on file
  • Use & Precautions:
  • Pure Axial Loading Only:​ Side loads, bending moments, torque on cell → error & possible damage. Use proper seats & dowel pins. Never restrain the cell body laterally.
  • No Preload via Clamping:​ Clamping bolts / plates locate the cell — they must NOT apply compressive preload. Preload is introduced only by the process force (web tension / press force).
  • Shield Grounding:​ Single-point ground at PFEA — if frame is also grounded (usual) do NOT ground shield at cell end (may already be capacitively coupled via frame — fine, but do NOT add second drain wire bond at cell). Check for ground loops if noisy — lift shield at PFEA briefly to see if noise changes.
  • Cable Care:​ Strain-relieve cable — do NOT let weight hang on connector / cable gland. Minimum bend radius ≥5× cable diameter. Protect from hot surfaces / moving parts.
  • Tare at True Zero:​ Only tare with web slack / roll removed / no strip tension — if continuous line cannot cut web → use calculated tare from known empty roll weight minus roll weight in PFEA — re-verify at first opportunity.
  • Overload:​ Occasional 150 % FS safe — but avoid repeated shocks >150 % FS; if overloaded beyond mechanical limit → check zero shift by comparing pre/post load cal (apply small known weight → should read correctly; if zero shifted >0.5 % FS consider recal or replace)
  • Spare Policy:​ PFTL201C is mechanical — failure rare if properly installed; keep spare if long lead time / critical line; store in original box upright (no load on cell). Keep PFEA amplifier (electronic) as spare — far more likely to fail (caps, relays).
  • Replacement:​ After swapping cell → re-enter FS value & sensitivity (if PFEA asks — usually only FS needed; sensitivity auto-used from PFEA library for PFTL201C family but verify) → re-tare → verify with partial load.

Related products