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Protective measures
Protective measures
Prior to any intervention in the equipment, disconnect it from the power
supply with the main circuit-breaker.
WARNING!
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, trans-
former T10 and p.c. board D711 (see wiring diagram).
To prevent accidental triggering of high voltage cable and radiation, set the switch S2 (SS)
on p.c board D702 to "OFF" (lower position) (no triggering of the SS relay).
WARNING!
After shut-down of the system, there may still be about 380 V DC present on the interme-
diate circuit. This will be indicated by LED V24 on p.c. board D 710. The voltage will
drop to less than 30 V within about 3 minutes, the LED goes out at about 30 V.
CAUTION!
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 sur-
face, see Technical Information TI 219).
Before removing or inserting a p.c. board, switch off the equipment.
Siemens-Elema AB
Solna, Sweden
SPS-UD
RX B7-120.033.01.10.02
05.98
2-1
MAMMOMAT 300
65 02 186
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