The FG4S‑150G‑90G‑NG incremental encoder is a legacy industrial model widely used in heavy-duty applications such as steel rolling mills, metallurgical drives, and automated production lines. As this model has been discontinued, sourcing the original unit has become challenging. To address this, we offer a 1:1 custom replacement solution, replicating all mechanical dimensions, electrical characteristics, and pulse output, ensuring seamless integration into existing systems without requiring modifications.
Our replacement encoders are manufactured using industrial-grade materials with reinforced housings and bearings, providing durable performance, high vibration resistance, and precise incremental feedback. The design supports rapid delivery, typically within 15 working days, allowing operators to maintain production continuity and reduce downtime.
This engineered alternative has been successfully implemented in multiple regions, including Southeast Asia, Russia, and the Middle East, meeting demanding operational standards while extending the service life of equipment previously reliant on the discontinued encoder. Customized options can be tailored to match specific installation or environmental requirements.
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 |
