03.06
Mounting
the fan box
1. Slide the back of the fan box into the locking mechanism on the NCU box.
2. Push the front section into the guide until the spring locks.
Replacement
For replacing the fan box
1. Apply pressure to the locking spring on the front section of the fan box and
2. Slide the fan box downward.
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
Fan box
4 Description of the NCU
4.2 Mounting
Guide
4-43