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5.3.1 Function of the displays
POWER ON
Lights up green after the system power controller has completed the power-up sequence without error. In the
standby status the indicator flashes.
SYSTEM
Lights up green when the CPU(s) is/are in operation.
CHECK
Lights up red when the SVP has detected a hardware malfunction or a fault in the power supply of the SU
/390. In the event of a fault a buzzer sounds at the same time.
STATUS indicator
Depending on the POWER ON indicator, this indicator is switched on and displays details of the hardware status
with a three-character alphanumeric display.
The display changes as sequences are executed. If the display finally stops at a particular value not equal to "000",
this must be interpreted as the error code for a problem. In this case Customer Support should be contacted.
POWER ON
STATUS
indicator
Hardware status
Does not light
up
Does not
light up
Power failure
Does not light
up
b00 through
bFF
Power supply units are being initialized.
Flashing
Does not
light up (in
maintenance
mode CE0)
Standby mode
Lights up
001 through
010
Power-on sequence is active.
Lights up
100 through
399
System is being initialized.
Lights up
000
System initialization completed.
Lights up
500 through
599
System stop initiated.
Lights up
010 through
001
Power-off sequence is active.
Lights up or
does not light
Begins with
A
The entire /390 system (CPU box, AROMA, CHE boxes) or parts of it have
been switched off because of a fault (power supply or operating temperature).
Or an important function of the SVP has been stopped and a detailed error
code cannot be displayed on the SVP console.
