The FGH4K-2828G-90G-NG/20P incremental encoder is typically deployed in heavy-duty industrial systems where stable speed and position feedback is required under continuous load conditions. Applications often include metallurgical equipment, material handling systems, and large drive assemblies. When original units become difficult to source, maintaining operational consistency becomes a critical concern.
Our 1:1 custom replacement solution is developed based on the original mechanical envelope and signal specifications. The replacement encoder preserves the same flange dimensions, shaft interface, pulse resolution (2828 PPR), and electrical output characteristics, allowing seamless integration into existing control architectures without software or hardware changes.
Each replacement unit undergoes functional verification for signal integrity, rotational accuracy, and environmental durability. Custom options such as connector type, cable exit direction, and voltage level can be adapted to site-specific requirements. This solution provides a reliable path to extend equipment service life while minimizing downtime and retrofit risk.
Technical Datasheet
| Parameter | Value |
| Pulse rates | |
| 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, 40000, 50000 (further pulse rates according to customers specification) |
| Connection data | |
| Supply voltage | 12 V ... 30 V DC (For 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 $I_L$ 30 mA |
| Output current | max. 150 mA at 24 V (observe derating) |
| Internal resistance | 75 Ω at 24 V |
| Slew rate | 200 V / µs with $C_L$ 100 pF |
| Duty cycle | 1 : 1 ± 3 % for standard pulse rates 1 : 1 ± 5 % for special pulse rates up to 25000 pulses |
| Square wave displacement 0°, 90° | 90° ± 3 % for standard pulse rates 90° ± 5 % or special pulse rates up to 25000 pulses |
| Max. frequency | 200 kHz, Higher max. frequency on request |
| Special output voltage 5V (TTL) | |
| 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 |
