The FG4S‑1200G‑90G‑NG incremental encoder has reached end-of-life, making procurement increasingly challenging for industrial operators. To maintain uninterrupted production, we provide a 1:1 custom replacement solution that precisely mirrors the original encoder’s mechanical dimensions, electrical interfaces, and functional parameters. This ensures seamless integration into existing machinery without requiring design modifications.
Widely applied in steel, metallurgical, and heavy-duty manufacturing industries, this encoder is engineered for harsh environments where vibration, high load, and temperature fluctuations are common. Its reliable incremental output supports precise speed and position feedback for drives, rolling systems, and automated equipment. Our replacement solution guarantees consistent performance, minimizing downtime and production risks associated with discontinued models.
By leveraging advanced manufacturing techniques, the custom encoder can be produced and delivered efficiently, typically within 15 working days. Optional configurations are also available to meet specific operational requirements, making it an ideal solution for companies seeking continuity and cost-effective maintenance strategies.
Technical Datasheet
Pulse rates
| Category | Value |
|---|---|
| Standard pulse rates | 500, 600, 1000, 1024, 1200, 2000, 2048, 2400, 2500 |
| Special pulse rates | 4000, 4096, 4800, 5000, 8192, 10000, 12000, 16000, 16384, 20000, 25000(further pulse rates according to customers specification) |
Connection data
| Parameter | Details |
|---|---|
| Supply voltage | 12 V … 30 V DCFor UL and CSA Class 2 supplied |
| No load-current | approx. 50 mA at 24 V |
| Outputs | Current limited, short-circuit proof push-pull line driver with integrated impedance adaptation for 30 to 140 Ω lines. |
| Pulse height (HTL) | approx. as supply voltage, output saturation voltage < 0.4 V at Iₗ 30 mA |
| Output current | max. 150 mA at 24 V (observe derating) |
| Internal resistance | 75 Ω bei 24 V |
| Slew rate | 200 V / μs with Cₗ 100 pF |
| Duty cycle | 1:1 ± 3 % for standard pulse rates1:1 ± 5 % for special pulse rates up to 25000 pulses |
| Square wave displacement 0°, 90° | 90° ± 3 % for standard pulse rates90° ± 5 % for special pulse rates up to 25000 pulses |
| Max. frequency | 200 kHz, Higher max. frequency on request |
Special output voltage 5V (TTL)
| Parameter | Details |
|---|---|
| Pulse height | 5V, RS422-compatible (TIA/EIA - Standard) |
| Supply voltage | 12 … 30 V DC (optional: 5 V DC)For UL and CSA Class 2 supplied |
