Siemens SIMATIC IPC647E Operating Instructions Manual page 118

Expanding and assigning parameters to the device
6.6 Drives
6. Pull the drive forward out of the frame.
7. Remove both drive mounting bars.
Installation procedure - Drive in the frame
Proceed in the opposite direction.
Ensure that the mounting bars noticeably engage when the drive is inserted.
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Operating Instructions, 11/2018, A5E45589180-AA
SIMATIC IPC647E