2
Safety notes
Inspection/maintenance
Operating Instructions – MOVIPRO
®
PHC11A-..M1-..2A-A1/..
13
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 po-
tential 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. Ad-
here 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 connec-
tions 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 operation 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 stand-
still. 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 rea-
sons, disconnect the unit from the supply system before correcting the fault.
2.11 Inspection/maintenance
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.
20278543/EN – 09/2014
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