Electrical Installation
5.7.5 Overview of voltage inputs and outputs
5.7.6 External DC 24 V power supply
An external power supply DC 24 V can be connected to control terminals X13.1/X13.2. The external
power supply enables parameter configuration, maintenance of input/output functions and communi-
cation, even while the mains voltage is switched off.
Requirements to be met by external power supply
Max. 1.0 A (typically 0.45 A)
Typically: < 15 A (max. 100 µs)
Via standard fuse elements for rated current, characteristic: slow
Safety extra low voltage (SELV) according to EN 61800-5-1
The digital inputs and the DC 24 V terminal of the electronic control equipment can
withstand external voltage up to DC 30 V. Higher voltages may destroy the unit.
Use
suitable external power supply units with a maximum output current of DC 30 V or
use appropriate fuses to protect the unit.
Operation of the frequency inverter is not affected if the mains voltage is switched on and the exter-
nal power supply is switched off.
Exceptions:
Mains voltage must be switched on for the following functions. The function is not enabled if only an
external power supply is applied.
− The relay output X10 is controlled only if mains voltage is switched on.
− The heat sink fan and the internal fan are controlled only if mains voltage is switched on.
4
2
3
X13
1
5
6
10 VDC OUT
24 VDC IN
GND
1
2
3
4
5
X11
6
24 VDC OUT
GND
2
3
X12
1
4
5
6
X13
X12
X11
49
Control terminals Standard connection 06/2013 Operating Instructions
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