Mechanical Requirements

Dimensions

The following figure gives the dimensions of the TM7 Safety-Related System blocks size 1 (left) and size 2 (right):

TM7 I/O Blocks

Type of block

Reference

Size

Digital input block for safety-related applications

TM7SDI8DFS

1

Mixed input and output block for safety-related applications

TM7SDM12DTFS

2

Spacing Requirements

TM7 blocks can be installed side-by-side. However, you must observe the minimum spacings from the front face of each expansion block, based on cable connector type and cable bend radius.

The following figure shows an example of wire bending requirements for a block connected with pre-wired straight cables and elbowed cables:

1 Straight cable

2 Elbowed cable