Function Of The Keys And Switches; Unit Emergency Switch; Power On Key - Fujitsu SE500 Basic Operating Manual

Controls

5.3.2 Function of the keys and switches

5.3.2.1

UNIT EMERGENCY switch

The UNIT EMERGENCY switch switches the system off as quickly as possible when an
emergency or disaster occurs. The Server Unit is switched off immediately when the switch
is pressed.
This switch should only be used in the utmost emergency. If there is still time, the system
should be switched off normally using the STAND-BY key.
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Procedure in the event of an emergency power-off:
1. Pull out and remove the protective cover of the UNIT EMERGENCY switch.
2. Move the switch down (from position I to position 0).
5.3.2.2

POWER ON key

This key initiates the sequential power-on of the power supplies of the entire /390 system
(/390-CPU, AROMA, CHE boxes). They are powered on independently of an automatic
power-on/off function.
IMPL (Initial Micro Program Load) is then performed. The system is ready when POWER
ON lights up and the status indicator displays 000.
When POWER ON IPL is configured, the operating system is then loaded (see SVP frame
LOAD PRESET1, "Server Unit /390" Operating Manual [2]).
Before pressing the POWER ON key, check whether the following requirements are met:
1. POWER ON is flashing and the status indicator displays nothing. When all displays are
off and the status indicator displays nothing, the power supply of the Server Unit is
switched off. In this case switch the fuses in the power distribution cabinet on to supply
the Server Unit with power.
U41858-J-Z126-2-76
CAUTION!
There is a risk of data loss. When the UNIT EMERGENCY switch is pressed,
system data can no longer be written back.
After it has been pressed, the UNIT EMERGENCY switch is mechanically locked.
POWER ON can only be used again to switch the system on when the lock has
been canceled by Customer Support.
CAUTION!
Danger of fire and electric shock
After the UNIT EMERGENCY has been pressed, some of the circuits remain live!
Only some of the circuits are switched off. Switch off the fuses in the power distri-
bution cabinet to eliminate this danger.
Control panel (on the SE700 and SE500)
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