PLCs, Power Supplies & Others

This digital input unit captures status signals from switches, sensors, and pushbuttons. It converts these field signals into standard logic levels for the controller. The unit handles both DC and AC input voltages for maximum application flexibility. Its high-density design maximizes I/O points within limited panel space.

Input Channel Configuration and Electrical Characteristics

The unit provides thirty-two independent digital input channels for versatile field connectivity. Each channel accepts either 24 V DC or 100-120 V AC signals. The inputs feature optical isolation to protect the controller from electrical noise. All channels share a common return path for straightforward wiring arrangements.

Physical Dimensions and Mounting Details

This input unit measures 130 mm in height, 75 mm in width, and 90 mm in depth. Its rugged enclosure weighs approximately 0.41 kg for secure mounting. You can install the unit on a standard 35 mm DIN rail or use screw fixation. The module occupies 75 mm of horizontal rack space for efficient cabinet layouts.

Connector Interface and Field Wiring

The NP1X3206-W features a 40-pin connector for the backplane interface. A separate 32-terminal spring-clamp block handles all field input connections. Each terminal accepts solid or stranded wire from 0.2 mm² to 1.5 mm². The removable terminal block simplifies replacement without rewiring field cables.

Input Filtering and Noise Immunity

Each input channel includes a programmable digital filter for noise rejection. You can set the filter time constant from 0.5 ms to 10 ms. The unit also incorporates hysteresis to prevent signal chatter at threshold levels. These features ensure stable reading of noisy industrial signals.

Diagnostic Features and Status Indication

Thirty-two individual LEDs display the real-time status of each input point. A green power LED indicates the presence of the 24 V DC supply. The unit also provides a fuse status indicator for internal protection monitoring. You can troubleshoot field wiring issues quickly using these visual aids.

System Integration and Compatibility

This input unit connects directly to Fuji Electric NP1 series PLC racks. It also interfaces with other systems using standard digital signaling protocols. The unit supports both sink and source input configurations. You can place this module in any slot of the expansion backplane.

Details