Siemens SIMOTICS SD SH 71 315 Series Operating Instructions Manual page 37

For motors with separately driven fan, install an interlock circuit that prevents the main
motor being switched on if the separately driven fan is not operational.
Table 4- 1
1LE7 shaft heights 71 ... 315
Operating Instructions, 04/2022, A5E51689275A-AA
Air guidance
Incorrect
Preparing for use
4.6 Ensure adequate cooling
Correct
35