FUJI NV1F-SP2 PLC Module | 2 Channels

This special function PLC module provides high-speed counting for MICREX-F systems. The FUJI NV1F-SP2 handles up to two independent 50 kHz counter inputs. A dedicated processor manages all counting and comparison tasks without CPU overhead. Consequently, automation engineers can monitor encoders, flow meters, and high-speed position sensors accurately.

Technical Specifications of the PLC Module

The FUJI NV1F-SP2 measures 90 mm in width and 70 mm in height. Its depth reaches 56 mm for standard DIN rail mounting. The module weighs approximately 0.24 kg including all counting and isolation circuitry. A single front panel LED array shows counter status, overflow conditions, and power health. The top side features a removable screw terminal block for all field wiring. This design stores minimal energy in small filtering capacitors only. Therefore, the module contains no batteries or large energy storage elements.

Parameter	Specification
Brand	Fuji Electric
Full Model	NV1F-SP2
Category	PLC Module (High-Speed Counter)
Dimensions (W x H x D)	90 mm x 70 mm x 56 mm
Weight	Approximately 0.24 kg
Counter Channels	2 independent channels
Maximum Frequency	50 kHz per channel
Input Type	24V DC, differential or single-ended
Counter Range	0 to 16,777,215 (24-bit)
Preset Values	8 per channel
Outputs	4 transistor outputs, 24V DC, 0.3A
Response Time	0.1 ms
Terminal Type	Removable screw blocks
Energy Storage	Minimal (filtering only)
Supply Voltage	24V DC from bus

Functional Features and High-Speed Counting

The FUJI NV1F-SP2 supports up/down, quadrature, and pulse direction counting modes. You can configure each channel independently for different encoder types. The module compares the current count against eight preset values continuously. A hardware comparator triggers outputs within 0.1 ms of reaching a preset. Consequently, this module delivers precise position tracking for cut-to-length and indexing applications.

Installation and System Integration

You must mount this counter module on standard 35mm DIN rail. The FUJI NV1F-SP2 connects to the MICREX-F bus via a rear expansion connector. A removable terminal block accepts shielded wiring from 14 to 22 AWG. The module supports hot replacement without powering down the entire system. Always use shielded twisted-pair cables for encoder connections to avoid noise.

Maintenance and Operational Benefits

Because the FUJI NV1F-SP2 stores no battery-backed data, it needs no periodic battery changes. Technicians can replace the module without losing any preset or configuration settings. The module retains all counter parameters in non-volatile memory indefinitely. Consequently, this high-speed counter offers reliable service for precision motion applications.