Repair Switch - Siemens SINAMICS G115D Operating Instructions Manual

Corrective maintenance
10.4 Repair switch
4. Remove the fan unit from the converter.
5. Install the new fan unit and fix it with a tightening torque of 2.5 Nm (22.1 lbf.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.
Electric shock as a result of a residual charge in power components
After the power supply has been switched off, it takes up to five minutes until the capacitors in
the converter have discharged so that the residual charge is at a non-hazardous level.
• Wait at least five minutes to allow the converter to discharge after switching the repair
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.
398
WARNING
switch off before carrying out any maintenance work.
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA