Schaffner Group
User and Installation Manual
LCL Filter
May 2018
18/21
III.2
Carefully connect protective earth (PE) wire to
adequate earth potential close to LCL filter FN6840.
Use a wire diameter of equal or bigger size as foreseen
for line/load side power cables – according to your local
codes and safety instructions.
ECOsine
™
Drive
>150mm
>150mm
>100mm
>100mm
III.3
Connect PE wire of LCL filter FN6840
Connect the PE wire with appropriate cable lug to
threaded stud.
III.4
Connect LCL filter load side terminals L1’, L2’, L3’
to respective motor drive or rectifier
inputs.
The third part of LCL filter FN6840 designation is a number contains three digits, i.e. FN 6840-25-
113
, which indicates power terminal type.
Filter for 50/60 Hz, up to 480 V AC grid, current rating 380A
terminals, open frame (IP 00), with fan and power supply, filter
contains a damping module/resistors.
Note
: for the recommended wire size and torque use copper wire with a temperature rating of
75°C or higher.
Note:
In case the cables on the power terminals are installed without cable lug, it is
recommended to follow the maintenance according to chapter 6.
III.5
Connect temperature monitor switch TS- TS’
The monitor switch is a relay contact, which is open in
ALARM state. It is constituted by a thermal switch NC
180°C (UL-approved) to detect temperature overload of
chokes. It may either be used to remotely disconnect
the drive’s load via respective input of motor drive or
converter control (check corresponding manual) or as
alarm sensor for system control unit.
AN ENGAGED TEMPERATURE
MONITOR SWITCH MUST LEAD TO
IMMEDIATE LOAD SHUTDOWN AND
INVESTIGATION OF THE PROBLEM.
LC
L F
ilt
er
INS 1008766 A0
INS 1008766 A0
INS 1008766 A
