nord NORDAC FLEX SK 200E Series User Manual page 24

NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
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.
Establish the electrical installation as per applicable regulations (e.g. cable cross-section, fuses,
protective conductor connection). Please refer to the documentation or manual for the device for
further instructions.
Information regarding EMC-compliant installation such as shielding, grounding, setup of filters and
routing of cables can be found in the documentation for the device and in Technical Information
TI 80-0011. CE-marked devices must also comply with these instructions. The manufacturer of the
system or machine is responsible for compliance with the limit values specified in EMC regulations.
In case of a fault, insufficient grounding may cause an electric shock with possibly fatal consequences
if the device is touched.
The device may only be operated with effective ground connections which comply with local
regulations for large leakage currents (> 3.5 mA). Please refer to Technical Information TI 80-0019 for
detailed information regarding connections and operating conditions.
Connection of the supply voltage may directly or indirectly set the device into operation. Contact with
electrically live components will result in electric shock, possibly with fatal consequences.
Disconnect all poles of all power connections (e.g. power supply) at all times.
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Setup, troubleshooting and commissioning
Comply with applicable national accident prevention regulations when working on live devices (e.g.
BGV A3, formerly VBG 4).
The device's voltage supply may start up the device directly or indirectly, or touching electrically
conducting components may cause an electric shock with possible fatal consequences.
Parameterize and configure the devices in such a way that does not cause any hazards.
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.
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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.
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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
24 BU 0200 en-US-4920