Inovance SV820N Series User Manual

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Safety Information and Precautions
Safety Information and Precautions
ThisUserGuideispackagedtogetherwiththeSV820NServoDrive.Itcontainsbasicinformationforquick
start of the drive.
■ Electrical Safety
ExtremecaremustbetakenatalltimeswhenworkingwiththeServoDriveorwithintheareaoftheServo
Drive.ThevoltagesusedintheServoDrivecancausesevereelectricalshockorburnsandispotentially
lethal.OnlyauthorizedandqualiedpersonnelshouldbeallowedtoworkonServoDrives.
■ Machine/System Design and Safety of Personnel
Machine/system design, installation, commissioning startups and maintenance must be carried out by per-
sonnel who have the necessary training and experience. They must read this safety information and the
contents of this manual. If incorrectly installed, the Servo Drive may present a safety hazard.
The Servo Drive uses high voltages and currents (including DC), carries a high level of stored electrical ener-
gy in the DC bus capacitors even after power OFF. These high voltages are potentially lethal.
The Servo Drive is NOT intended to be used for safety related applications/functions. The electronic "STOP
& START" control circuits within the Servo Drive must not be relied upon for the safety of personnel. Such
control circuits isolates mains power voltages from the output of the Servo Drive. The mains power supply
must be disconnected by an electrical safety isolation device before accessing the internal parts of the Servo
Drive.
SafetyriskassessmentsofthemachineorprocesssystemwhichusesaServoDrivemustbeundertaken
by the user and or by their systems integrator/designer. In particular the safety assessment/design must
takeintoconsiderationtheconsequencesoftheServoDrivefailingortrippingoutduringnormaloperation
and whether this leads to a safe stop position without damaging machine, adjacent equipment and machine
operators/users. This responsibility lies with the user or their machine/process system integrator.
System integrator/designer must ensure the complete system is safe and designed according to the relevant
safety standards. Inovance Technology and Authorized Distributors can provide recommendations related to
the Servo Drive to ensure long term safe operation.
The installer of the Servo Drive is responsible for complying with all relevant regulations for wiring, circuit
fuse protection, earthing, accident prevention and electromagnetic (EMC regulations). In particular fault dis-
criminationforpreventingreriskandsolidearthingpracticesmustbeadheredtoforelectricalsafety(also
for good EMC practice). Within the European Union, all machinery in which this product is used must comply
with required directives.
■ Electrical Installation - Safety
ElectricalshockriskisalwayspresentwithinaServoDriveincludingtheoutputcableleadingtothemotor
terminals.Where dynamicbrakeresistors aretted externalto the ServoDrive, care mustbe taken with
regardstolivecontactwiththebrakeresistors,terminalswhichareathighDCvoltageandpotentiallylethal.
CablesfromtheServoDrivetothedynamicbrakeresistorsshouldbedoubleinsulatedasDCvoltagesare
typically 600 to 700 VDC.
MainspowersupplyisolationswitchshouldbettedtotheServoDrive.Themainspowersupplymustbe
disconnected via the isolation switch before any cover of the Servo Drive can be removed or before any
servicingworkisundertakenstoredchargeintheDCbuscapacitorsofthePWMinverterispotentiallylethal
after the AC supply has been disconnected. The AC supply must be isolated at least 10 minutes before any
workcanbeundertakenasthestoredchargewillhavebeendischargedthroughtheinternalbleedresistor
ttedacrosstheDCbuscapacitors.
Whenever possible, itis goodpractice tocheck DCbus voltage witha VDCmeter beforeaccessing the
inverter bridge. Where the Servo Drive input is connected to the mains supply with a plug and socket,
thenupondisconnectingtheplugandsocket,beawarethattheplugpinsmaybeexposedandinternally
connectedtoDCbuscapacitors(viatheinternalbridgerectierinreversedbias).Wait10minutestoallow
storedchargeintheDCbuscapacitorstobedissipatedbythebleedresistorsbeforecommencingworkon
the Servo Drive.

Inovance SV820N Series Specifications

General

Brand	Inovance
Model	SV820N Series
Category	Servo Drives
Language	English