Safety instructions
SINAMICS V20 Inverter
Getting Started, 07/2012, A5E03728127
9
WARNING
The opening of the branch-circuit protective device may be an indication that a fault current
has been interrupted. To reduce the risk of fire or electric shock, current-carrying parts and
other components of the controller should be examined and the controller replaced if
damaged. If burnout of the current element of an overload relay occurs, the complete
overload relay must be replaced.
CAUTION
Separate the control cables from the power cables as much as possible.
Keep the connecting cables away from rotating mechanical parts.
Commissioning
WARNING
The following terminals can carry dangerous voltages even if the inverter is not operating:
- The mains input terminals L1, L2, L3, and PE
- The motor terminals U, V, W, and output earth terminal
- The DC link terminals DC+ and DC-
- The braking resistor terminals R1 and R2 (Frame size D only)
This equipment must not be used as an "emergency stop" mechanism (
see EN 60204,
9.2.5.4
).
It is not allowed to open, connect or disconnect the equipment during its operation.
Operation
WARNING
Certain parameter settings may cause the inverter to restart automatically after an input
power failure, for example, the automatic restart function.
Motor parameters must be accurately configured for motor overload protection to operate
correctly.
Use of mobile radio devices (e.g. telephones, walkie-talkies) in the immediate vicinity of the
devices (< 1.8 m) can interfere with the functioning of the equipment.
Risk of fire
If an unsuitable braking resistor is used, this could result in a fire and severely damage,
people, property and equipment. Use the adequate braking resistor and install it correctly.
The temperature of a braking resistor increases significantly during operation. Avoid coming
into direct contact with braking resistors.
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