The FGH4KK-2000G-90G-NG/20P incremental encoder is typically deployed in heavy industrial environments where moderate resolution and high mechanical robustness are required. With 2000 pulses per revolution, this model is often selected for metallurgical equipment, bulk material handling systems, and large drive assemblies that prioritize signal stability and durability over ultra-high resolution.
In real maintenance scenarios, users may encounter long lead times or sourcing difficulties for the original unit. To ensure uninterrupted operation, a 1:1 custom replacement solution has been developed based on field-proven specifications. The alternative encoder follows the same mechanical footprint, shaft interface, mounting pattern, and electrical output logic, allowing direct installation without changes to the control program or wiring layout.
From a design standpoint, the replacement focuses on structural strength and long-term reliability. The reinforced housing and industrial-grade internal components are suited for continuous operation under vibration, dust, and temperature fluctuations. Each encoder undergoes functional verification, including pulse accuracy and signal integrity testing, before delivery.
This replacement approach helps operators maintain existing equipment efficiently, reduce unplanned downtime, and secure a stable spare parts strategy for legacy heavy-duty systems.
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 |
