5.4
Mains connection
5.4.1
Line voltage
Power from the mains is connected to terminals: PE, L1, L2, L3. Here, it must be strictly observed that
the mains voltage lies within the allowable tolerance speci
fi
cations (
Technical data and nameplate
af
fi
xed to the side).
Danger due to electric current
Not suitable for IT system!
5.4.2
Required quality attributes for the mains voltage
Danger due to electric current
The mains voltage must comply with the EN 50160 quality characteristics and the de
fi
ned standard
voltages in IEC 60038!
5.4.3
Leakage current, securely attached, ground wire double up to 10 mm
²
Danger due to electric current
In accordance with the de
fi
ned networks in EN 60990 the device has a leakage current > 3.5 mA
so it must be permanantly connected. The protective ground must be made double in accord-
ance with EN 50178 Point 5.2.11and 5.3.2.1 up to a cross section of at least 10 mm
²
.
5.5
Residual-current-operated protective device
Danger due to electric current
For an installation of r.c.d. protection, it shall be observed that this must be of
“
universal-
current sensitivity
”
(Type B). In accordance with EN 50 178, Section. 5.2. other types of current-
operated protective devices may not be used. To ensure as high a degree of reliability as
possible , we recommend a tripping current of 300 mA.
5.6
Inverter output
5.6.1
Motor connection
The motor leads are connected to the terminals: PE, U, V, W. Several fans can be connected to the
controller-the maximum total current of all motors must not exceed the current rating for the controller.
Information
•
It is recommended that a separate motor protection unit be foreseen for each fan.
•
For motors with thermistors
“
TP
”
(PTC thermistor) e.g. type U-EK230E
•
For motors with thermostats
“
TB
”
(thermal contacts) e.g. type STDT16 or AWE-SK (
Enclosure:
Circuit suggestion for several motors with motor protection unit type STDT.)
5.6.2
Disconnection between controller and motor (repair switch)
Ideally, a repair switch should be installed
before the controller
(supply line disconnect).
In the case of complete disconnection (entire load) after the controller, the enable (controller OFF /
ON) must be disconnected simultaneously. I.e., an additional control contact is needed. Switching on
the motor while simultaneously issuing the enable (ON) achieves secure energizing with low satura-
tion of the controller. For this a programming is necessary (
IO Setup Enable ON / OFF).
Attention!
When switching on the motor plus existing release: under certain circumstances, this can occur under
full modulation of the controller.
Operating Instructions
Fcontrol
–
model series FXDM25/32AM
Electrical installation
L-BAL-E212-GB 1451 Index 003
Part.-No.
15/123