4. Remove the fan unit from the converter.
5. Install the new fan unit and x it with a tightening torque of 2.5Nm (22.1lbf.in).
You have replaced the fan unit.
❒
10.4 Repair switch
Overview
The G115D wall-mounted converter is optionally available with an integrated repair switch. The
repair switch allows the converter to be totally isolated from the mains. This means that the
mains power to the converter is terminated and the converter cannot start or stop the motor;
however, the 400 V AC and/or 24 V DC power supplies to the daisy chained converters are still
maintained.
WARNING
Electric shock as a result of a residual charge in power components
After the power supply has been switched o, it takes up to ve minutes until the capacitors in
the converter have discharged so that the residual charge is at a non-hazardous level.
• Wait at least ve minutes to allow the converter to discharge after switching the repair
switch o before carrying out any maintenance work.
Note
The integrated repair switch in the G115D is listed as a manual motor controller suitable as motor
disconnect.
Although the activation of the switch while the motor is running is allowed, in order to provide
maximum protection to the converter, Siemens recommends that you stop the motor by other
means and wait until the motor reaches a full stop before activating the switch.
Corrective maintenance
10.4Repair switch
SINAMICS G115D Wall Mounted distributed drive
398 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA
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