2.3
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. Protection class of the device when
open is IP00! It is possible to touch hazardous voltages directly.
•
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 speci
fi
cations 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.
Waiting period at least 3 minutes!
•
Through use of capacitors, danger of death exists even after switching off the device through
directly touching the energized parts or due to parts that have become energized due to faults.
•
It is only permitted to remove the housing cover after waiting for 3 minutes once the line supply
cable has been shut down. Should measurement or adjustment work be unavoidable on the opened
unit while still powered, then this may only be performed by quali
fi
ed personnel acquainted with the
thereby associated hazards.
Attention!
Even after switching off, dangerous temperatures can still occur in and on the device.
Attention!
Automatically restart after a power failure or mains disconnection!
3
Product overview
3.1
Application
The frequency inverter is designed for a stepless control of fans without additional (electromagnetic)
motor noise.
Only suitable for drives with low set-off torque (e.g.: fans or pumps).
3.2
Functional description
The frequency inverters of these series generate their 3~ output with variable voltage and frequency
from the three-phase mains on the input.
The devices are constructed in accordance with the general requirement in EN 61800-2 for adjustable
speed electrical power systems and is intended for one-quadrantdrives.
Information
By using the integrated all-pole effective Sine
fi
lter (phase to phase and phase to ground), an absolute
parallel control of fans without risk of damage for motors is possible. Screened motor cables are not
required!
Quick Start Guide
Fcontrol
–
model series FXDM
Product overview
L-BAL-E223-GB 1623 Index 003
Part.-No. 00153236
4/22
