2.6 Work on the device
Information
Mounting, electrical connection, and start-up operation may only be carried out by an
electrical specialist in accordance with electrotechnical regulations (e.g. EN 50110 or
EN 60204)!
Danger due to electric current
•It is generally forbidden to carry out work on electrical live parts!
•The 5 electrical safety rules must be observed!
•Only remove the lid from the terminal compartment (available depending on the
model) with the line voltage switched off!
•Opening of the base lid is prohibited. Loosening the safety screws will void the
guarantee!
–Protection class of the device when complete open is IP00! It is possible to touch
hazardous voltages directly.
–Through use of capacitors, danger of death exists even after switching off the
device!
•The rotor is not protected against indirect contact neither by supplementary or
reinforced insulation nor by connection to safety-earth in accordance with EN 60204-
1, therefore the system constructor must provide protection by enclosure in
accordance with EN 61140 before the motor is connected to a power source. This
protection can be achieved for example by a guard grille (
Product overview:
Application operational area and Mounting: General notes).
•When the motor runs independently due to air flowing through or if it continues to run
down after being turned off, dangerous voltages of over 50 V can arise on the motor
internal connections through operation of the generator.
•The safe isolation from the supply must be checked using a two-pole voltage
detector.
•Even after disconnecting the mains voltage, life-threatening charges can appear
between the protective ground “PE” and the mains connection.
•The protective earth is conducting high discharge currents (dependent on the
switching frequency, current-source voltage and motor capacity). Earthing in
compliance with EN specifications shall therefore be observed even for testing and
trial conditions (EN 50 178, Art. 5.2.11). Without earthing, dangerous voltages can be
present on the motor housing.
•Maintenance work may only be carried out by suitably qualified personnel.
Attention, automatic restart!
•The motor may switch on and off automatically for functional reasons.
•Automatically restart after a power failure or mains disconnection!
•Wait for the motor to come to a complete standstill before approaching it!
•The exterior rotor turns during operation of the external rotor motor!
Danger of being sucked in!
Do not wear loose or hanging clothing, jewellery, etc., tie together long hair and cover it.
Assembly instructions ECblue MODBUS Safety instructions
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