Moeller DF51 - Page 40

Installation
10/05 AWB8230-1541GB
36
Arrangement of the power terminals
The arrangement of power terminals depends on the size of the
power section.
Table 4: Description of the power terminals
DF51-322-025
DF51-322-037
DF51-322-055 DF51-322-075
DF51-322-1K1
DF51-322-2K2
DF51-320-4K0
DF51-340-037
DF51-340-075
DF51-340-1K5
DF51-340-2K2
DF51-340-3K0
DF51-340-4K0
DF51-340-5K5
DF51-320-5K5
DF51-340-7K5
DF51-320-7K5
Figure 37: Arrangement of the power terminals
a Internal connection. Remove if a DC link choke is used.
Terminal
designation
Function Description
L, L1, L2, L3, N Supply voltage (mains
voltage)
• Single-phase mains voltage: Connection to L and N
• Three-phase mains voltage: Connection to L1, L2, L3
U, V, W Frequency inverter
output
Connection of a three-phase motor
L+, DC+ External DC choke Terminals L+ and DC+ are bridged with a jumper. If a DC
link choke is used, the jumper must be removed.
DC+, DC– Internal DC link These terminals are used for connecting an optional
external braking resistor and for DC linking and supplying
DC to multiple frequency inverters.
e, PE
Earthing Enclosure earthing (prevents dangerous voltages on
metallic enclosure elements in the event of a
malfunction).
L/L1
L2
UVW
N/L3
L+ DC+ DC–
a
L/L1
L2
UVW
N/L3
L+ DC+ DC–
a
L1
L2
UVW
L3
L+ DC+ DC–
a
L+
DC+
PE
PE
DC–
L2
L3
L1
UVW
a
ee
N/L3L2L/L1 U V W
M
3 h