NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
40 BU 0250 en-3021
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2.3 Electrical Connection
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Dangerous voltages may be present at the plug contacts for the power connections (e.g. mains cable,
motor cable) even when the device is not in operation.
• Before starting work, check that all relevant components (voltage source, connection cables) are
free of voltage using suitable measuring equipment.
• Use insulated tools (e.g. screwdrivers).
• DEVICES MUST BE EARTHED.
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Temperature sensor and PTC (TF)
As with other signal cables, thermistor cables must be laid separately from the motor cables
Otherwise the interfering
signals from the motor winding that are induced into the line affect the
device.
Ensure that the device and the motor are specified for the correct supply voltage.
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Electrical connections are made exclusively with plug connectors.
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