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Operating Instructions AEC
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8
Electrical installation
WARNING
Dangerous voltage!
When the device is disconnected from power supply, the mains, DC-link voltage and
motor terminals may still be live for some time. Work on the device may only be started
once the DC link capacitors have discharged. The time to wait is at least 3 minutes in the
case of sizes 1 through 7 and at least 8 minutes in the case of size 8.
The electrical installation must be carried out by qualified electricians according to
the general and regional safety and installation directives.
The documentation and device specification must be complied with during
installation.
Before any assembly or connection work, disconnect the device from power supply.
Check for absence of voltage.
Do not connect inappropriate voltage sources. The nominal voltage of the device
must correspond to the supply voltage.
The device must be connected to ground potential.
Do not remove any covers of the device while power supply is on.
For a safe operation of the device, it is necessary that the documentation and the device specifications be
complied with during installation and commissioning. In the case of special applications, you may also have
to comply with further guidelines and instructions.
The connecting cables must be protected outside of the device, considering the maximum voltage and
current values of the fuses.
The mains fuses and cable cross-sections are to be selected according to EN 602041 and DIN VDE
0298 Part 4 for the nominal operating point of the mains unit. According to UL/CSA, the mains unit is
suitable for operation with a supply mains of a maximum of 480 VAC which delivers a maximum
symmetrical current of 5000 A (effective value) if protected by suitable fuses. Only use copper cables
with a temperature range of 60/75 °C.
The protective conductor cross-section required for grounding the fixing plate must be selected
according to the size of the unit. In these applications, the cross-section must correspond to the
recommended cross-section of the wire.
IP20 ingress protection rating is only achieved with terminals plugged and properly mounted
covers.
In order to meet the specific functional requirements, a distinction is made in the following
between “precharging circuit” for the “sinusoidal feedback” function and “network access”
for the “block-shaped feedback” function.
8.1
EMC-compliant installation
The AEC is designed according to the requirements and limit values of product norm EN 61800-3 with an
interference immunity factor (EMI) for operation in industrial applications. Electromagnetic interference is
to be avoided by expert installation and observation of the specific product information.
EMC measures
Install the AEC and other components (radio interference filter, line choke, sine filter) on a metal
mounting plate, ensuring full-surface contact with the plate. Ideally, the mounting plate should be
galvanized, not painted.
Summary of Contents for AEC 401 Series
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