Siemens SIMOTRAS 6SG7050 Operating Instructions Manual page 88

Start-up
WARNING
Hazardous voltages and rotating parts (fans) are present in this electrical equipment during
operation. Non-observance of the safety instructions can result in death, severe personal injury
or substantial property damage.
A hazardous voltage may be present at the signalling relays in the customer installation.
The converters must not be connected to a supply with earth-leakage circuit-breaker (VDE
0160, Section 6.5) since, in the event of a fault to frame or ground, the fault current may contain
a DC component that will either prevent or hinder a higher-level e.l.c.b. from tripping. In this
case, all loads connected to this e.l.c.b. have no protection either.
Only qualified personnel who are thoroughly familiar with all safety notices contained in the
operating instructions as well as erection, installation, operating and maintenance instructions
should be allowed to work on these devices.
The successful and safe operation of this equipment is dependent on careful transportation,
proper storage and installation as well as correct operation and maintenance.
The converter is at a hazardous voltage level even when the power section is disconnected
from the power supply. The gating board (board mounted directly to lower part of housing) has
many circuits at hazardous voltage levels. Before carrying out any maintenance or repair work,
all converter power sources must be disconnected and locked out.
These instructions do not claim to list all of the measures required to ensure safe and reliable
operation of the converter. For special applications, additional, supplementary information or
instructions might be required. If problems do occur and you feel in any way uncertain, please
contact your local Siemens office or representative.
The use of unauthorized parts in the repair of this converter and handling of the equipment by
unqualified personnel can give rise to hazardous conditions which may cause death, severe
personal injury or substantial property damage. All safety notices contained in this instruction
manual and attached to the converter itself must be carefully observed.
Please read the safety information given in Section 1 of this instruction manual.
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SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
01.04