Protective Measures - Siemens MOMMOMAT 1000 Installation And Start-Up Instructions Manual

Protective measures

Protective measures
It is very important that any intervention in the equipment will start with disconnecting it
from the power supply with the main circuit-breaker. Before removing or inserting any of
the printed circuit board, switch of the equipment. To prevent accidental triggering of high
voltage and radiation, set the switch S2 (SS) on p.c. board D702 to "OFF" (lower position,
no triggering of the SS relay).
WARNING
WARNING
CAUTION
WARNING
Siemens-Elema AB
Solna, Sweden
If the system is only switched off at the control panel or with
S2/D711, line voltage will still be present at the generator line
connection, line filter Z1, Z2, transformer T1, transformer T10 and
p.c. board D711 (see wiring diagram).
After shut-down of the system, there may still be 380 V DC
present on the intermediate circuit. This will be indicated by LED
V24 on p.c. board D710. The voltage will drop to less than 30 V
within about 3 minutes, the LED goes out at about 30 V.
The p.c. boards contain electrostatic highly sensitive components
requiring particular care in their handling (ground before making
contact and place only on a conductive surface).
The edges of the metal curtain of the stand are very sharp and
may cause severe injury. Apply the protective strips as mentioned
in section Protective Measures after removing the covers from the
the stand. Remove the protective strips only when the covers are
to be mounted or when vertical adjustment of the swivel-arm
system is necessary.
Register 3 SP B7-230.033.07
Rev. 03
Page 1 of 2
11.99 SPS-UD
2 - 1
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Mammomat 1000/3000
Installation and Start-Up