16
bASIc SAfeTy INSTrUcTIONS
1.4 electrical connection
DANGer
Voltage at the terminals and in the device !
Danger to life due to electric shock !
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Never work on the open device or touch exposed parts.
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For any work on the unit switch off the supply voltage and secure it
against switching on.
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Wait until the drive has stopped in order, that perhaps regenerative
energy can be generated.
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Wait until the DC-Link capacitors are discharged (5 minutes). Verify
by measuring the DC voltage at the terminals.
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If personal protection is required, install suitable protective devices
for drive converters.
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Never bridge upstream protective devices (also not for test pur-
poses).
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Connect the protective earth conductor to drive converter and motor
everytime.
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Install all required covers and protective devices for operation.
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The control cabinet shall be kept closed during operation.
For a trouble-free and safe operation, please pay attention to the following instructions:
• The electrical installation shall be carried out in accordance with the relevant re-
quirements.
• Cable cross-sections and fuses must be dimensioned by the user accordly to the
specified minimum / maximum values for the opperation.
• Drive converters are only intended for permanent connection. Cross-sections of pro-
tective earth conductors should be interpreted in accordance with
.
• Connection of the drive converter is only permissible on symmetrical networks with
a maximum line voltage (L1, L2, L3) with respect to earth (N/PE) of max. 300 V. An
isolating transformer must be used for supply networks which exceed this value. In
case of non-compliance the control is not longer considered as "PELV circuit".
• Within systems or machines the person installing electrical wiring must ensure that
on existing or new wired safe ELV circuits the EN requirement for safe insulation is
still met!
• For drive converters that are not isolated from the supply circuit (in accordance with
) all control lines must be included in other protective measures (e.g.
double insulation or shielded, earthed and insulated).
• When using components without isolated inputs/outputs, it is necessary that equi-
potential bonding exists between the components to be connected (e.g. by the equi-
potential line). Disregard can cause destruction of the components by equalizing
currents.
