PLCs, Power Supplies & Others

Product Overview

The Fuji NP1AYH4IG-MR generates precise analog output signals for process control applications. This module provides 4 isolated output channels with 4–20 mA current loop capability. It converts digital commands from the controller into proportional analog values. The unit integrates seamlessly into Fuji Electric NP1 series programmable controller systems.

Technical Specifications

Physical Dimensions and Mounting

This analog output module measures 250 mm in width, 30 mm in height, and 140 mm in depth. The unit weighs approximately 0.42 kg. It plugs directly into a standard NP1 series rack backplane. The front panel includes LED indicators for power, output status, and fault detection. These LEDs provide immediate visual feedback on output operation.

Electrical Interface and Field Wiring

A front-access terminal block provides the primary interface for all field wiring connections. Each output channel provides a two-wire termination for 4–20 mA current loop devices. The module requires an external 24 VDC loop power supply for operation. This design separates loop power from the module’s internal circuitry. Field devices like I/P transducers, valve positioners, and chart recorders connect directly to these terminals. The module operates in sourcing mode only for standard compatibility.

Performance and Signal Integrity

The NP1AYH4IG-MR delivers 14-bit resolution with excellent linearity across the output range. It updates all 4 channels simultaneously for coordinated control response. The module includes built-in diagnostics for open-loop and short-circuit detection. It reports any output anomalies to the controller immediately. Furthermore, the output circuitry provides ESD protection for reliable operation in industrial environments. The maximum loop resistance capability reaches 600 Ω at 24 VDC.

Installation and System Integration

You can install this module into any available slot in the NP1 series rack. Insert the module carefully until it locks securely into the backplane. Always verify the loop wiring polarity matches the termination diagram. For critical control loops, use redundant modules for fail-safe operation. Ensure that the total loop resistance stays within the specified maximum. Test each output channel before connecting critical field devices.

Environmental Compliance

This module carries CE marking for industrial use. It also complies with RoHS environmental directives. The conformal coating protects the PCB against moisture and dust ingress.

Details