Allen-Bradley 1734-VTM Point I/O Voltage Terminal Module

Configured for voltage distribution in Point I/O platforms, the Allen-Bradley 1734-VTM (1734-VTM Voltage Terminal Module) provides direct physical and electrical execution of 8-point voltage terminal access across POINTBus architectures.

Hardware Specifications

Industrial Control and I/O Density Scaling

The 1734-VTM module operates as a terminal base expansion component, allowing for the direct connection of field devices to a centralized voltage potential. It enables efficient I/O density scaling by providing 8 dedicated voltage terminals within a single slot width, reducing the need for external terminal blocks within the control cabinet. The internal bus structure maintains backplane bus communication integrity while the module serves as a passive distribution node. Firmware flash compatibility is not applicable, as the module contains no active logic or programmable components.

Frequently Asked Questions

Q: Does the 1734-VTM provide electrical isolation between the 8 voltage terminals?

A: No. The 8 voltage points are internally commoned to distribute a shared potential. Users must ensure that the voltage level applied to the module is compatible with all connected field devices.

Q: Can this module be installed in a hot-swapped configuration?

A: While the Point I/O system supports hot-swapping for specific active modules, the 1734-VTM is a passive terminal block. It should be installed or removed only when the field power is isolated to prevent accidental short circuits or arc damage to the terminal contacts.

Field Installation Guidelines

• Mounting: Secure the module onto a 35 mm DIN rail. Ensure the terminal base is fully seated and the locking tab is engaged to provide mechanical stability and maintain contact with the POINTBus.
• Wiring: Utilize 22-14 AWG stranded or solid copper conductors. Tighten the screw clamp terminals to the recommended torque specifications to maintain a low-resistance connection and prevent wire pull-out under vibration.
• Polarity and Voltage: Verify that the field voltage applied to the terminal points does not exceed the 240 VAC or 28.8 VDC rating. Confirm that the incoming power source is protected by appropriate external fuses or circuit breakers.
• Grounding: As a passive distribution component, ensure the connected field power common is referenced to the system ground where required by the specific application circuit design to maintain signal integrity and safety compliance.