Lenze 490 Series Speed controllers tor DC motors - Manual (Page 8)

—
~
~—..
5.7
5.8
When connecting, check for the clockwise rotating field.
In case of an anticlockwise rotating field the wrong
phase sequence is displayed by lighting of the LED SEQ,
the firing pulses are inhibited.
Capacity of the +Vcc supply.
For a supply of external option boards, a total output
current of 5OmA is available.
6. Special field voltages
Field voltage UF 0.9 x ULl L2 (N) 6.1
11121L3L
El
II
F F3
1 1
1 1
L1 L2 L3
IL1IL2(N)j
IIKI
F5
LK
)
Umains Ll, L2, L3
=
380/415V
Ufield 1, K
=
0.9 X ULl L2 (N)
e.g. UF
=
0.9 x 380V
UF 340V
1K
F5 for the protection against earth fault
Field supply by autotransforiner
IL1.11L2
F5
I LK
0
~R UFN
—5
T1
II
Umains L1, L2, L3
=
340 to 460V
Ufield 1. K
=
0.9 X ULl L2 (N)
Ufield 1, K
UFN
0.9
1K
L1 L2 L3
FS for protection against earth fault
For Tl an isolation transformer can be used.
See chapter 6.3.
page: 5
6.2
II LJ tJ
Lanze