Installation Guidelines

Introduction

The TM3 bus coupler is connected to a controller using a fieldbus communication cable.

The TM3 bus coupler can be installed on a top hat section rail (DIN rail).

Correct Mounting Position

Whenever possible, the TM3 bus coupler should be mounted horizontally on a vertical plane as shown in the illustrations below:

Acceptable Mounting Position

Whenever possible, the TM3 bus coupler can also be mounted vertically with a temperature derating on a vertical plane as shown below:

NOTE: Expansion modules must be mounted above the TM3 bus coupler.

Incorrect Mounting Position

The TM3 bus coupler should only be positioned as shown in Correct Mounting Position. The following illustrations show the incorrect mounting positions:

Minimum Clearances

 WARNING
UNINTENDED EQUIPMENT OPERATION
  • Place devices dissipating the most heat at the top of the cabinet and ensure adequate ventilation.
  • Avoid placing this equipment next to or above devices that might cause overheating.
  • Install the equipment in a location providing the minimum clearances from all adjacent structures and equipment as directed in this document.
  • Install all equipment in accordance with the specifications in the related documentation.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

The TM3 bus coupler has been designed as an IP20 product and must be installed in an enclosure. Clearances must be respected when installing the product.

There are 3 types of clearances between:

  • The TM3 bus coupler and all sides of the cabinet (including the panel door).

  • The TM3 bus coupler terminal blocks and the wiring ducts. This distance reduces electromagnetic interference between the controller and the wiring ducts.

  • The TM3 bus coupler and other heat generating devices installed in the same cabinet.

The following illustration shows the minimum clearances that apply to all TM3 bus coupler references: