Attention!
To activate the on current limitation, you must wait at least 90 seconds after switching off the line
voltage before switching back on!
5.3.2
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!
5.3.3
Leakage current, securely attached, protective earth conductor
Danger due to electric current
The maximum leakage current depends on the type of device and the connected mains voltage
(
Technical Data). With regard to
fi
xed connection and the type of PE conductor connection,
the speci
fi
cation for the leakage current must be observed under consideration of the locally
valid standards (for Europe
EN 50178 Section 5.2.11 or 5.3.2.1 etc.).
Minimum cross-section for PE conductor for
fi
xed connection = 1.5 mm
2
!
5.4
Residual-current-operated protective device
Danger due to electric current
To ensure as high a degree of reliability as possible we recommend a release current of 300 mA,
where a residual current circuit breaker (type A) is used.
Residual current circuit breaker (type A)
Exception: All-current-sensitive fault current circuit breaker on the 3 ~ 230 V line
When connecting the device between two outer conductors,
“
all-current-sensitive
”
fault current circuit
breakers must be used (
EN 50 178, Art. 5.2).
5.5
Inverter output
5.5.1
Motor connection
The motor leads are connected to the terminals: U1, U2. Several fans can be connected to the
controller-the maximum total current of all motors must not exceed the current rating for the controller.
Change direction of rotation
wiring diagram fan!
Information
•
It is recommended that a separate motor protection unit be foreseen for each fan.
•
For motors with thermistors
“
TB
”
e.g. type S-ET10.
5.5.2
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
saturation of the controller.
Attention!
When switching on the motor plus existing release: under certain circumstances, this can occur under
full modulation of the controller.
5.5.3
U/f-characteristic curve
A control signal for setting the output frequency is switched to the analog input of the device by the 5-
step switch (0 - 10 V 0 - 50 Hz).
Operating Instructions
FRQ5S-E-6/10A
Electrical installation
L-BAL-E247-GB 1512 Index 001
Part.-No. 00163444-42
10/17
