SEW MOVITRAC LTE-B series, Operating Instructions Manual

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Operating Instructions – MOVITRAC® LTE-B
2
Startup/operation
Safety Notes
2.9 Startup/operation
Do not deactivate monitoring and protection devices even for a test run.
When in doubt, switch off the unit whenever changes occur in relation to normal mode
(e.g. increased temperatures, noise, oscillation). Determine the cause of the fault and
consult SEW-EURODRIVE, if necessary.
Where required, systems in which such units are installed must be equipped with addi-
tional monitoring and protection devices in accordance with the respective applicable
safety regulations, e.g. the law governing technical equipment, accident prevention
regulations, etc.
Additional protective measures may be necessary for applications with increased poten-
tial risk. You have to check the effectiveness of protection devices each time you change
the configuration.
Connections which are not being used must be covered with the supplied protection
caps during operation.
Do not touch live components or power connections immediately after disconnecting the
unit from the voltage supply because some capacitors may still be charged. Adhere to
a minimum switch-off time of 10 minutes. Observe the corresponding labels on the unit.
When the unit is switched on, dangerous voltages are present at all power connections
as well as at any connected cables and motor terminals. This also applies even when
the unit is inhibited and the motor is at standstill.
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, for safety reasons, this is not permitted for the driven machine,
disconnect the unit from the supply system before correcting the error.
2.10 Inspection and maintenance
CAUTION
The surfaces of the unit and any connected components, e.g. braking resistors, can
reach high temperatures during operation.
Danger of burns.
• Let the unit and external options cool down before you start working on them.
WARNING
Danger of electric shock due to exposed, live parts in the unit.
Severe or fatal injuries.
• Never open the unit.
• Only SEW-EURODRIVE is authorized to carry out repairs.