We developed a custom solution for the POG10 D 100 I + FSL encoder, intended for heavy-duty drive systems where 100 PPR HTL feedback and mechanical speed switching must remain stable under vibration, terminal-box wiring, high temperature, and EMC noise. This is a D-output POG10 configuration with FSL, so it provides K1 / K2 incremental feedback plus a centrifugal force switch, not K0 index feedback.
Typical production lead time: 15 working days.
Model reading is direct:
- D = K1, K2 output signals
- 100 = 100 pulses per revolution
- I = 9–30 VDC, HTL output with inverted signals
- + FSL = centrifugal force switch
- POG10 = Ø11 mm shaft, EURO flange B10, terminal-box heavy-duty encoder body
At 100 PPR, the first weak point is not counter frequency. The feedback side usually fails at grounding, shielding, loose terminal wiring, or low-speed pulse stability. The FSL side fails when the factory-defined switching speed does not match the real protection point of the drive.
Where the System Fails First
Low PPR reduces counter load, but it also means each pulse carries more weight in speed calculation. Under vibration, weak grounding, or poor shielding, speed feedback can jump even when the encoder body is mechanically normal.
For the FSL section, the critical point is the selected switching speed. The datasheet states that the switching speed must be specified when ordering. If the switching value is wrong, the FSL contact may trip too early, too late, or fail to protect the machine at the intended overspeed point.
Typical failure points:
- Wrong FSL switching speed → protection logic becomes invalid
- Poor terminal grounding → false HTL edges
- Shield interruption → unstable low-speed feedback
- Loose terminal wiring → intermittent counting
- Rigid coupling → torsional shock into the Ø11 mm shaft
- Wrong K1/K2 phase reading → reversed direction
Because this is a D version, do not add K0 reference logic. Use a separate home signal if index referencing is required.
Mechanical and Switch Boundary
The POG10 + FSL version has tighter mechanical limits than standard POG10. With FSL, vibration resistance is 10 g, shock resistance is 100 g / 6 ms, rotor inertia is 220 gcm², and weight is about 2.3 kg. The allowable operating speed is tied to the selected switching speed: n ≤ 1.25 × ns.
The FSL switching range is 850–4900 rpm, with contact capacity 0.05–6 A / 230 VAC or 0.05–1 A / 125 VDC. Treat it as a mechanical protection element, not as a second encoder output.
Installation Notes
- Keep the model format as POG10 D 100 I + FSL
- Do not add K0 logic; D = K1 / K2 only
- Specify the correct FSL switching speed before production
- Keep terminal-box grounding continuous
- Separate encoder wiring from inverter and motor power cables
- Test both HTL feedback and FSL switch contacts during commissioning
- Use a flexible coupling suitable for Ø11 mm shaft
- Check grounding and switch threshold before replacing the encoder
Key Data
- Model: POG10 D 100 I + FSL
- Type: Heavy-duty incremental encoder with centrifugal switch
- Resolution: 100 PPR
- Output: HTL with inverted signals
- Signals: K1, K2 + inverted
- Supply voltage: 9–30 VDC
- Output frequency: ≤120 kHz
- FSL switching range: 850–4900 rpm
- FSL switching capacity: 0.05–6 A / 230 VAC; 0.05–1 A / 125 VDC
- Shaft: Ø11 mm stainless steel
- Flange: EURO flange B10
- Protection: IP66
- Operating temperature: -40 °C to +100 °C
- Optional low temperature: down to -50 °C
- Shaft load: ≤300 N axial / ≤450 N radial
- Vibration with FSL: 10 g
- Shock with FSL: 100 g / 6 ms
- Connection: Terminal box
- Weight with FSL: Approx. 2.3 kg
