NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
24 BU 0200 en-3118
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Installation and assembly
The installation and cooling of the device must be implemented according to the regulations in the
corresponding documentation. The permissible mechanical and climatic ambient conditions (see
technical data in the manual for the device) must be complied with.
The device must be protected against impermissible loads. In particular, components must not be
deformed and/or insulation distances must not be changed. Touching of electronic components and
contacts must be avoided.
The device and its optional modules contain electrostatically sensitive components, which can be
easily damaged by incorrect handling. Electrical components must not be mechanically damaged or
destroyed.
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Electrical Connection
Ensure that the device and the motor are specified for the correct supply voltage.
Installation, maintenance and repair work must not be carried out unless the device has been
disconnected from the voltage and at least 5 minutes have elapsed since the mains was switched off!
(Due to charged capacitors, the equipment may continue to carry hazardous voltages for up to
5 minutes after being switched off at the mains). Before starting work it is essential to check by
measurement that all contacts of the power plug connections or the connection are voltage-free.
The electrical installation must be implemented as per the applicable regulations (e.g. cable cross-
section, fuses, earth lead connections). Further instructions can be found in the documentation or
manual for the device.
Information regarding EMC-compliant installation such as shielding, earthing, location of filters and
routing of cables can be found in the documentation for the devices and in the technical information
manual TI 80-0011
. CE marked devices must also comply with these instructions. Compliance with the
limit values specified in the EMC regulations is the responsibility of the manufacturer of the system or
machine.
In case of a fault, insufficient earthing may cause an electric shock with possibly fatal consequences if
the device is touched.
The device may only be operated with effective earth connections which comply with local regulations
for large leakage currents (> 3.5 mA). Detailed information regarding connections and operating
conditions can be obtained from the technical Information manual TI 80-0019
.
The voltage supply of the device may directly or indirectly put it into operation, or touching electrically
conducting components may then cause an electric shock with possible fatal consequences.
All phases of all power connections (e.g. power supply) must always be disconnected.
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Set-up, troubleshooting and commissioning
When working on live devices, the applicable national accident prevention regulations must be
complied with (e.g. BGV A3, formerly VBG 4).
The voltage supply of the device may directly or indirectly put it into operation, or touching electrically
conducting components may then cause an electric shock with possible fatal consequences.
The parametrisation and configuration of the devices must be selected so that no hazards can occur.
With certain setting conditions, the device or the motor which is connected to it may start automatically
when the mains are switched on. The machinery which 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 the mains, secure the danger area by warning and removing all persons from the
danger area.
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