Fuji NV1F-HC1 High-speed Counter Card

Precision Pulse Counting for Motion Feedback

This counter card captures high-frequency pulses from encoders and sensors. The Fuji NV1F-HC1 provides one high-speed counter channel for your MICREX-SX system. It accepts input frequencies up to 100 kHz for accurate position tracking. A built‑in comparator triggers outputs when the count reaches preset values. Consequently, this module suits length measurement, cut-to-length, and rotary encoder applications.

Counter Specifications & Operating Modes

The Fuji NV1F-HC1 operates in up-count, down-count, or quadrature modes. You can connect incremental encoders with A/B phase signals for direction sensing. A programmable preset value allows automatic output activation at specific counts. The card also features a latch input for capturing instantaneous position values. Therefore, this high-speed counter handles demanding motion control tasks without CPU intervention.

Parameter	Detailed Specification
Operating Temperature	0°C to +55°C
Storage Temperature	-25°C to +70°C
Humidity Range	20% to 95% RH (no condensation)
Number of Channels	1 high-speed counter
Input Frequency	100 kHz maximum
Input Type	5V DC differential (RS-422) or 24V DC
Counter Modes	Up, down, quadrature (x1, x2, x4)
Counter Resolution	32-bit (0 to 4,294,967,295)
Preset Values	1 (user-programmable)
Comparator Outputs	1 (24V DC, 0.1A)
Latch Input	1 (external trigger)
Status LEDs	3 (POWER, COUNT, OUTPUT)
Compatible Rack	MICREX-SX (any slot)
Power Supply	24V DC via backplane
Current Draw	150 mA typical
Energy Storage	None (count value in CPU memory)

Installation & Encoder Wiring

You insert the Fuji NV1F-HC1 into any available slot of your MICREX-SX rack. Connect your encoder to the dedicated 5V differential or 24V input terminals. For quadrature counting, wire both A and B phase signals accordingly. The CPU reads the current count value from dedicated memory registers. Your ladder program then compares the count against machine setpoints.

Operational Advantages & Real-Time Counting

The Fuji NV1F-HC1 counts pulses independently of the CPU scan time. This approach prevents missed pulses during fast machine operation. You can reset the counter to zero using a program instruction or external signal. The comparator output activates within microseconds of reaching the preset value. Therefore, this high-speed card delivers precise length control for shearing and slitting lines.