Electrical Installation
5 Electrical Installation
This chapter describes the electrical installation of the Agile series.
5.1 Safety
WARNING
The electrical installation must be carried out by qualified electricians according to the
general and regional safety and installation directives.
The documentation and device specification must be complied with during installation.
Before any assembly or connection work, discharge the frequency inverter. Verify that
the frequency inverter is discharged.
Do not touch the terminals because the capacitors may still be charged.
Only connect suitable voltage sources. The nominal voltage of the frequency inverter
must correspond to the supply voltage.
The frequency inverter must be connected to ground potential.
If voltage supply is switched on, no covers of the frequency inverter may be removed.
The connecting cables must be protected externally, considering the maximum voltage and current
values of the fuses. The mains fuses and cable cross-sections are to be selected according to
EN 60204-1 and DIN VDE 0298 Part 4 for the nominal operating point of the frequency inverter. Ac-
cording to UL/CSA, the frequency inverter is suitable for operation at a supply network of a maximum
of 480 VAC which delivers a maximum symmetrical current of 5000 A (effective value) if protected by
fuses of class RK5. Only use copper cables with a temperature range of 60/75 °C.
In the case of special applications, you may also have to comply with further guidelines and instruc-
tions.
The frequency inverters are to be grounded properly, i.e. large connection area and with good con-
ductivity. The leakage current of the frequency inverters may be > 3.5 mA. According to EN 50178 a
stationary installation must be provided. The protective con-
d
uctor cross-section required for ground-
ing the fixing plate must be selected according to the size of the unit. In these applications, the cross-
section must correspond to the recommended cross-section of the wire. Refer to chapter 5.4
“Dimensioning of conductor cross-section”.
CAUTION
Degree of protection IP20 is only achieved with terminals plugged and properly mount-
ed covers.
Connection conditions
− The frequency inverter is suited for connection to the public or industrial supply mains according to
the technical data.
− It must be checked, based on the specifications of EN 61000-3-2, if the devices can be connected
to the public supply means without taking additional measures. Increased requirements in connec-
tion with the specific application of the fre
-q
uency inverter are to be met by means of optional
components. Commutating chokes and EMC filters are optionally available.
− Op
eration on unearthed mains (IT mains) is admissible after pulling out the IT mains plug-in
jumper.
Interference-free operation with residual current device is guaranteed at a tripping current ≥ 30 mA if
the following points are observed:
− All-current sensitive residual current devices (Type B to EN 50178)
− Use EMC filters with reduced leakage current or, if possible, do not use EMC filters at all.
− The length of the shielded motor cable is ≤ 10 m and there are no additional capacitive compo-
nents between the mains or motor cables and PE.
For connection to IT mains, refer to chapter 5.5 “Mains Connection”.
31
Safety 06/2013 Operating Instructions
Agile
To Next Page
Loading...
Need help?
General
