Siemens SINUMERIK 828D Service Manual

Service cases - hardware
4.1 PPU 24x.2/26x.2/28x.2
Hardware and Software
74 Service Manual, 03/2011, 6FC5397-5DP40-0BA0
4.1 PPU 24x.2/26x.2/28x.2
4.1.1 PPU status displays
Status displays front side
On the front side of the PPU, the following status displays provide information about the
module state:
5'<
1&
&)
/LQN
$FWLYLWL\
Figure 4-2 Vertical flap (detail)
The three LEDs located behind the protective flap on the front side of the PPU have the
following significance:
Name Color State Meaning
Green Is lit NC Ready and PLC in run mode.
Yellow Is lit PLC in stop mode
Flashing Booting
RDY
Red Is lit NC in stop mode:
 When booting, if NC Ready is not yet available
 Critical fault (power off/on necessary)
NC Yellow Cyclic flashing NC operation
CF Yellow Is lit User CompactFlash Card being accessed
CAUTION
If the LED is lit, the CompactFlash Card must not be removed!
Non-compliance can result in damage to the CompactFlash Card.

Siemens SINUMERIK 828D Specifications

General

Brand	Siemens
Model	SINUMERIK 828D
Category	Control Systems
Language	English