Nord Drivesystems NORDAC FLEX SK 210E Series Brief Instructions page 14

NORDAC FLEX (SK 200E ... SK 235E) – Brief instructions for Frequency Inverters
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Operation
If necessary, install additional monitoring and protective equipment in systems in which the devices
are installed according to applicable safety requirements (e.g. legislation concerning technical
equipment, accident prevention regulations, etc.).
Keep all covers closed during operation.
Under certain setting conditions the device or the motor connected to it may start automatically when
line power is switched on. A machine that it drives (press, chain hoist, roller, fan, etc.) may then make
an unexpected movement. This may cause various injuries, including to third parties.
Before switching on line power, secure the danger area by warning and removing all persons from the
danger area.
The device produces operation-related noises within the audible frequency range. These noises may
cause long-term stress, discomfort and fatigue, with negative effects on concentration. The frequency
range or the noise can be shifted to a less disturbing or almost inaudible range by adjusting the pulse
frequency. However, this might result in derating (lower output) of the device.
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Maintenance, repair and decommissioning
Installation, maintenance and repair work must not be carried out unless the device has been de-
energized and at least 5 minutes have elapsed since line power has been disconnected! (Due to
charged capacitors, the device may continue to carry hazardous voltages for up to 5 minutes after line
power has been disconnected). Before starting work it is essential to check by measurement that all
contacts of the power plug connectors or terminals are de-energized.
Please refer to the device manual for further information.
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Disposal
Do not dispose of the product and its parts and accessories as domestic waste. At the end of its life,
dispose of the product properly according to the local regulations for industrial waste. In particular,
please note that this product contains integrated semiconductor circuits (PCBs and various electronic
components, including high-power electrolytic capacitors). In case of incorrect disposal, there is a risk
of formation of toxic gases, which may cause contamination of the environment and direct or indirect
injuries (e.g. chemical burns). When it comes to high-power electrolytic capacitors, there is also a risk
of explosion with the associated risk of injury.
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5. Potentially explosive environment (ATEX, EAC Ex)
In order to operate or carry out installation work in potentially explosive environments (ATEX,
EAC Ex), the device must be approved and the relevant requirements and instructions in the device
manual must be complied with.
Failure to comply can result in the ignition of an explosive atmosphere and fatal injuries.
• Only persons who are qualified, i.e. trained and authorized for all assembly, service,
commissioning and operation activities in connection with explosive environments may work with
the devices described here (including the motors, geared motors, any accessories and all
connection equipment).
14 BU 0240 en-US-3118