Siemens Polymobil 10 Maintenance Manual page 9

General information
DANGER
•
Only connect the POLYMOBIL 10 to a power supply (wall outlet) whose installation
corresponds to the requirements according to VDE 0107 or the national regulations.
•
Prior to any intervention, switch the POLYMOBIL 10 off using the power OFF switch on
the control console, and disconnect the power plug.
•
Install or remove boards only with the generator switched off while observing the ESD
guidelines.
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Medical Solutions
When working on an open system there is danger of electric
shock.
Disregarding this could result in death or injury.
Please note:
•
The capacitators may still contain a charge. Do not carry out any
work while the system is under charge.
•
After power has been switched off, there is still approximately
350 V DC present in the unit (even after disconnecting the power
plug). Once the unit has been switched off the voltage will be
reduced to about 10 V within 10 minutes.
•
It is imperative that you determine the actual voltage by
connecting the DVM to the -VCC and + VCC measuring points
on the inverter board D 960 or (for easier access) by connecting
it to the + connection point of the C3 capacitator and to the
right-hand side of the F3 fuse on the capacitator board D 970
(see Fig. 1).
•
The LEDs V1 ... V10 on the D 970 go out even when a much
higher voltage is reached, thus not providing sufficient security.
•
If a fuse on the D 970 reacts, the corresponding capacitator
might contain high voltage for quite some time!
•
The capacitator discharge circuit is looped via the D 925 relays
CS and LS. If the X3 or the X9 plug on the D 925 or D 950 is not
plugged in or if the loop is defective, the C packet will not be
discharged.
This may cause life-threatening voltage to be present in the unit
for a considerable amount of time!
•
See the section for "Replacing the capacitator packet"
in the POLYMOBIL 10 RXR8-120.061.01... service manual.
RXR8-120.101.01
Rev. 05
Page 5 of 14
07.05 CS PS 24
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Polymobil 10