The FG4S-250G-90G-NG encoder has been discontinued, leaving many customers struggling to source reliable alternatives. We provide a dedicated replacement solution with 1:1 customization to replicate the original encoder’s parameters exactly. This ensures compatibility with existing systems and avoids the costly need for redesigns or changes in machinery. With a streamlined production process, we can complete custom orders within 15 working days, helping customers overcome procurement challenges and reduce downtime in their operations.
In the metallurgical and steel sectors, the FG4S-250G-90G-NG was frequently applied in heavy-duty equipment where resilience and precision were essential. Its incremental encoder design offered dependable feedback for controlling drives, conveyors, and rolling mills under harsh working conditions. Operators trusted this model for its durability in environments involving vibration, dust, and high mechanical stress. Even though it is no longer in production, our custom replacement encoders ensure the same operational performance and support ongoing industrial use.
Replacement solution reference image.
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
| Параметр | Деталі |
|---|---|
| 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)
| Параметр | Деталі |
|---|---|
| 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 |
