Siemens SINUMERIK 828D Service Manual page 137

Preconditions:
● The module is defective and must be replaced.
● The control cabinet is in a no-voltage condition, all of the connectors and cables are
Removing
Figure 4-26
NOTICE
Electro-static discharge (ESD)
Before you touch the module, discharge yourself at the cabinet or at the ground terminal.
Procedure:
1. Withdraw the electronics power supply connector X524 and label.
2. Unscrew the encoder connecting cable at X520 or X521 / X531, if required, also the
3. Withdraw the DRIVE-CLiQ cable X500 and write the slot designation on the cable.
4. Release the protective conductor connection and write the position designation on the
5. Push the lug downwards.
6. Swivel the module to the front.
Hardware and Software
Service Manual, 03/2010, 6FC5397-5DP20-0BA0
labeled.
SMC20 removal
shield connection.
cable.
Service cases - hardware
4.11 SMC20 / SMC30
137