The FG4S-1000G-90G-NG encoder is an older heavy-duty incremental encoder model that has now been discontinued. For many customers in the metallurgical and steel industry, this has created procurement challenges since the original part is no longer available through standard channels. To resolve this issue, we provide a customized replacement solution designed as a 1:1 parameter match. This ensures that the replacement encoder can be seamlessly integrated into the same applications without requiring major system modifications. By focusing on precision engineering and strict quality control, our replacement encoders reproduce the original specifications and deliver the same level of reliability in demanding environments. Furthermore, with a fast production cycle of just 15 working days, we help customers minimize downtime and quickly restore their operations.
In terms of application, the FG4S-1000G-90G-NG was widely used in heavy-duty industrial systems, particularly in steel rolling mills, metallurgical machinery, and other large-scale equipment where robust and precise feedback was required. Its incremental signal output made it suitable for position and speed monitoring in harsh conditions where vibrations, dust, and high temperatures were common. Many customers relied on this encoder because of its long operational life and stable performance, but since it has been discontinued, operators now face the challenge of sourcing compatible replacements. Our solution directly addresses this issue by replicating the key features of the original design while ensuring availability through non-standard custom manufacturing.
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
| Parametr | Szczegóły |
|---|---|
| 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)
| Parametr | Szczegóły |
|---|---|
| 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 |
