Safety – Lenze MDSLS Servo spindle motor User Manual
Page 12

Safety
General safety and application notes for Lenze controllers
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BA 33.0003 EN 1.0
Electrical connection
When working on live drive controllers, the valid national regulations for the prevention
of accidents (e.g. VBG 4) must be observed.
Carry out the electrical installation in compliance with the corresponding regulations (e.g.
cable cross-sections, fuses, PE connection). More detailed information is given in the
corresponding documentation.
Notes about wiring according to EMC regulations (shielding, earthing, filters and cable
routing) are included in the documentation. These notes also apply to CE-marked
controllers. The compliance with limit values required by the EMC legislation is the
responsibility of the manufacturer of the machine or system.
In the case of a malfunction (short circuit to frame or earth fault), Lenze controllers can
cause a DC residual current in the protective conductor. If an earth-leakage circuit breaker
(residual current device) is used as a protective means in the case of direct or indirect
contact, only an e.l.c.b. of type B may be used on the current supply side. Otherwise,
another protective measure such as separation from the environment through double or
reinforced insulation or disconnection from the mains by means of a transformer must be
used.
Operation
If necessary, systems including controllers must be equipped with additional monitoring
and protection devices according to the valid safety regulations (e.g. law on technical
equipment, regulations for the prevention of accidents). The controller can be adapted to
your application. Please observe the corresponding information given in the
documentation.
After a controller has been disconnected from the voltage supply, all live components and
power connections must not be touched immediately because capacitors can still be
charged. Please observe the corresponding stickers on the controller.
All protection covers and doors must be shut during operation.
Notefor ULapprovedsystemswith integratedcontrollers:ULwarningsarenotesthatonly
apply to UL systems. The documentation contains special UL notes.
Safe standstill
The V004 variant of the 9300 and 9300 vector controllers, the x4x variant of the 8200
vector controllers and the ECSxAxxx axis modules support the ”safe standstill” function,
protectionagainstunexpectedstart-up,accordingtotherequirementsofAnnexINo.1.2.7
of the EC Directive ”Machinery” 98/37/EC, DIN EN 954-1 Category 3 and DIN EN 1037.
Observe the notes on the ”safe standstill” function given in the documentation on the
respective variants.
Maintenance and servicing
The drive controllers are maintenance-free when the specified operating conditions are
met.
Ifthe ambientair ispolluted, the cooling surfacesofthe controller maybecome dirty or the
air vents of the controller may be obstructed. Therefore, clean the cooling surfaces and air
vents periodically under these operating conditions. Do not use sharp or pointed tools for
this purpose!
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