Siemens SINUMERIK 808D Service Manual

Service Manual
12 01/2017
3.1
System startup fault
Fault description
The control system cannot start up successfully after power-on; the PPU normally shows a black screen with no display at
all.
Diagnostic steps
1.
Check the status LED on the PPU panel.
•
If the status LED is lit, power off the control system and check whether
you have inserted the CF card properly. Then power on again and
observe whether you have eliminated the fault.
•
If the status LED is off, check the power supply interface (X1) on the
back of the PPU for the following:
– Whether the connection is loose
– Whether the 24 V terminal matches the interface
– Whether the 24
VDC power supply is available by measuring with a
multimeter
2.
Replacement and maintenance are necessary if the fault still exists after
the above operations, because probably the PPU is damaged.
3.2
PPU/HMI fault
Fault description
The HMI screen or the keys on the PPU are inactive.
Diagnostic steps
1.
Check whether the control system is in the crashed state. If yes, restart the control system and then check whether the
fault still exists.
2.
Replacement
and maintenance are necessary if the fault still exists after the above operations, because probably the
PPU is damaged.

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English