Electrical Connection - Bitzer VARIPACK FD+6 Instructions De Service

5 Electrical connection

Before performing any work on the electrical system:
DANGER
Life-threatening voltages inside the frequency
inverter housing!
Contact can lead to serious injuries or death.
Never open the FI housing in operation! Switch
off the main switch and secure it against being
switched on again.
Wait for at least 5 minutes until all capacitors
have been discharged!
Before switching on again, close the FI housing.
DANGER
As soon as the VARIPACK frequency inverter is
energized, the capacitors in the FI DC link are
charged.
From this moment on, all electrical components
in the VARIPACK frequency inverter present
risks!
Type Rated in-
put cur-
rent
A
FDU+6 7.6
FDU+12 10.6
FEU+16 14.5
FEU+24 20.4
FGU+32 28.5
FGU+38 33.5
FHU+45 40
FHU+60 54.7
FHU+73 66.2
FJU+87 78.8
FJU+105 95.8
FJU+145 130
FKU+180 160
FKU+205 198
FKU+260 236
Tab. 3: Cable diameters, tightening torques and fuses
16
Minimum .. Maximum cable diameters and tighten-
ing torques (in Nm)
Power connections
2
0.05 .. 6 mm
2
1 .. 10 mm
2
(16 mm with cable
connector)
2
1.3 .. 25 mm
Pin M8 for cable lugs
or wire end sleeves
up to a length of
26.5 mm
2
(min. 25 mm )
Pin M8 for cable lugs
or wire end sleeves
up to a length of
32 mm
2
(min. 25 mm )
The operation of the VARIPACK frequency inverter re-
quires the following electrical connections:
• VARIPACK earth connection.
• VARIPACK power connections (power cable and
motor cable).
• VARIPACK control connections.
For the selection of the cable diameters, fuses and
tightening torques of the earth and power connections,
see table 3, page 16. Use fuses of type gL/gG or
mount thermal overload switch of the appropriate char-
acteristic.
Earth connections
Nm
0.56 .. M4
0.8
Ring cable lug
1.35 M4
Ring cable lug
2.0 M5
Ring cable lug
20 M8
Ring cable lug
20 M8
Ring cable lug
Fuses
Max. rated fuse current (A)
Nm Stand- UL, cUL (type)
ard
1.8 10 10 (Class J)
16 20 (Class J)
20 25 (Class J)
25 30 (Class J)
1.8 32 40 (Class J)
40 50 (Class J)
3.6 63 60 (Class J)
80 80 (Class J)
100 100 (Class J)
20 125 125 (A50QS-125-4)
160 150 (A50QS-150-4)
200 200 (A50QS-200-4)
20 250 250 (A50QS-250-4)
315 300 (A50QS-300-4)
400 350 (A50QS-350-4)
CB-100-2