5.6
Voltage supply
5.6.1
Line voltage
Danger due to electric current
•
It must be strictly observed that the line voltage complies with speci
fi
ed on the rating plate and lies
within the allowable tolerance speci
fi
cations (see technical data).
•
Between the voltage supply of the device and the protective earth
“
PE
”
is in no case a higher voltage
permissible than the indicated line voltage of the device!
For 1 ~ fan types
•
Mains connection to: PE, L1 and N.
•
Attention!
–
To activate the on current limitation, you must wait at least 90 seconds after switching off the line
voltage before switching back on!
For 3 ~ fan types
•
Mains connection to: PE, L1, L2 and L3.
•
Attention!
–
A pulse-shaped current (in-rush current)
fl
ows when switching on the line voltage. When select-
ing switching elements and fuses, make sure that they are suitable for switching capacitive loads
(approx. 15
µ
F per motor).
5.6.2
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!
5.6.3
Line protection fuse
The connection must be fused depending on the used cable, the type of routing, the operating
conditions and according to the standards applicable on site. The speci
fi
cation for the maximum
admissible line fuse of the device must be observed (see technical data).
Possible components for the line protection (recommendation):
•
Safety fuses of operating class
“
gG
”
(whole range fuse cartridges for general applications according
to EN 60269-1).
•
Line protection switch with characteristic
“
C
”
(according to EN 60898-1).
5.6.4
UL: Short-circuit protection for branch circuits (NEC, CEC)
Danger due to electric current
This power conversion equipment is suitable for connection to electric circuits that cannot supply more
than a certain symmetrical current effective.
Please note the additional information under appendix / UL speci
fi
cations / UL: Short Circuit Current
Rating.
5.6.5
Operating in IT-System
Danger due to electric current
•
In the IT-System the neutral point of voltage supply is not grounded; in the case of a short-circuit
between a phase (e.g.
“
L1
”
) and protective earth
“
PE
”
becomes the protective earth potential =
phase.
•
Between the connection of the voltage supply of the device and the protective earth
“
PE
”
is in no
case a higher voltage permissible than the indicated line voltage of the device!
Assembly instructions
ECblue BASIC-MODBUS, ECblue BASIC
Electrical installation
L-BAL-F079D-GB 2044 Index 002
Part.-No.
28/80
