XBO-TN04A

Description

4-point sink transistor output option module (NPN type) for LS Electric compact PLCs (XBC/XEC and XGB series). Provides transistor outputs suitable for driving low-power loads and pulse/position signaling at rated speeds. Designed to clip into the appropriate option slot on supported PLC bases.

The Polar Energy Assessment:

The XBO-TN04A is an expansion module that adds four sink-type transistor outputs (NPN) to supported PLC racks (such as LS XBC-E/SU or XGB standard/expanded units). It’s optically isolated per channel and handles typical DC output loads, making it suitable for discrete actuator drives, pilot lamps, or logic inputs to other devices. In some controllers (SU/S type), it can also be used for pulse/position control at rated pulse frequencies; refer to the controller manual for supported functions and slot placement rules.

Pros

• Four transistor (sink) outputs for discrete control logic.
• Opto-isolated outputs improve noise immunity between module and field wiring.
• Works with economic and standard LS PLC families.

Limitations

• Output current and load limits are modest; use external drivers/contactors for heavy loads.
• Functionality (e.g., pulse/position speed) depends on the host PLC model and slot assignment.

Typical use cases

• Discrete actuator control (solenoids, small relays via drivers).
• Status lamp/signal panel outputs.
• Pulse/position signaling when installed in compatible controller slots.