This Is How You Remove An Alm - Siemens SINUMERIK 828D Service Manual

4.10.3

This is how you remove an ALM

Overview
The activities that must be taken into account when replacing an Active Line Module (ALM)
are subsequently described.
If a module has a hardware defect, then it must be replaced by an identical module.
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
NOTICE
Electro-static discharge (ESD)
Before you touch the module, discharge yourself at the cabinet or at the ground terminal.
Procedure:
1. Switch-off the control: Completely switch off the system. Check that the system is in a no-
2. Access the control cabinet where the infeed module is located.
3. If it has not already been done, label all connectors/cables that lead to the module now.
4. Withdraw the enable terminals X21.
5. Withdraw the connected DRIVE-CLiQ cables X200 - X202.
6. Withdraw the line supply connection X1.
Risk of electric shock
A hazardous voltage is present for up to 5 minutes after the power supply has been
switched off. The protective cover must not be opened until this time has elapsed.
The warning information on the components must be carefully observed!
7. Open the protective cover of the DC link voltage using a suitable tool (e.g. a screwdriver).
8. Withdraw the 24 V terminal adapter.
Hardware and Software
Service Manual, 03/2010, 6FC5397-5DP20-0BA0
labeled.
voltage condition and is locked-out so that it cannot be switched on again without the
appropriate authorization.
Only then, can it be ensured that the cables are not interchanged.
DANGER
Service cases - hardware
4.10 Active Line Modules
131