The FG4S-1024G-90G-NG encoder has been discontinued and is no longer supplied through standard channels, creating significant sourcing difficulties for users who continue to depend on this model. We provide a dedicated 1:1 customized replacement solution that ensures complete compatibility with the original encoder’s specifications. This tailored approach enables customers to integrate the replacement directly into existing machinery without further modification. To minimize downtime and help businesses resolve urgent procurement challenges, our production cycle is optimized to deliver custom replacements within 15 working days.
In terms of application, the FG4S-1024G-90G-NG was commonly used in metallurgical environments, particularly in rolling mills, steel production lines, and heavy-duty drives where precision and durability were required. Its incremental output and rugged design made it reliable under extreme operating conditions such as vibration, dust, and heat. Operators valued its stability in providing accurate position and speed feedback, which is critical for process control in steel plants. With our replacement solutions, users can maintain this same level of dependability while avoiding the risks of system failure due to obsolete parts.
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
Parametre | Detaylar |
---|---|
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)
Parametre | Detaylar |
---|---|
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 |