SEW Movitrac B, Руководство по эксплуатации

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Operating Instructions – MOVITRAC® B
2
Operation
Safety notes
2.10 Operation
Systems with integrated frequency inverters must be equipped with additional monitor-
ing and protection devices, as applicable, according to the relevant safety guidelines
and regulations, such as legislation governing technical equipment, accident prevention
regulations, etc.
Do not touch live components or power connections until 10 minutes after disconnecting
the frequency inverters from the supply voltage because there may still be some
charged capacitors. Observe the corresponding labels on the frequency inverter.
Keep all covers and housings closed during operation.
The fact that the status LED and other display elements are no longer illuminated does
not indicate that the unit has been disconnected from the supply system and no longer
carries any voltage.
Mechanical blocking or internal safety functions of the unit can cause a motor standstill.
Eliminating the cause of the problem or performing a reset may result in the drive re-
starting automatically. If this is not permitted for the driven machine for safety reasons,
disconnect the unit from the supply system before correcting the fault.
2.11 Unit temperature
MOVITRAC
®
B frequency inverters are usually operated with braking resistors. The
braking resistors are usually installed on top of the control cabinet.
The braking resistors can reach a surface temperature of significantly more than 70 °C.
Never touch the braking resistors during operation or in the cool down phase once the
unit has been switched off.