Lenze EDS4900U-REG - Manual (Page 181)

Configuration
7-90 48XX/49XXSHB0399
If the inputs are not assigned, constant values can be assigned via the input
codes. These values can also be stored in EEPROM via C003.
2. Function
The additional torque set-values have a summing influence on the n controller
output. The sum of these signals is limited to
–100%.
Code Name Possible settings Code Name
Lenze Selection Info
C148 Additional
torque
value 1 0 -100.0 % M
max
{0.1 %} + 100.0 % M
max
-200 % M
max
{1%} + 200 % M
max
Display only with terminal control. If the
terminal control is deactivated, the actual
terminal value will be accepted for
operation. In the armature setting range:
100 % M
max
correspond to 100 % I
max
(C022, C023)
C149 Additional
torque
value 2 0 -100.0 % M
max
{0.1 %} + 100.0 % M
max
-200 % M
max
{1%} + 200 % M
max
Display only with terminal control. If the
terminal control is deactivated, the actual
terminal value will be accepted for
operation. In the armature setting range:
100 % M
max
correspond to 100 % I
max
(C022/C023)
7.6.2 Speed dependent armature current limitation
4900Str078
-
+ 2
1
C 0 4 7
C 0 5 0
+
C 0 5 1
4 0
4 2
4 3
4 1
+
C 1 4 5 / C 1 4 6
C 0 2 5 / C 0 2 7
3
4
± 1 8 0 V
C 2 7 C 2 8 C 2 5 / C 2 6
C 0 2 5 / C 0 2 7
-
A B
Q S P
C 0 7 0 V
C 0 7 1 T
C 0 7 2 K
p n
n n
d n
C 0 5 6
C 0 6 3
C 0 2 2 , C 0 2 3
C 3 1 0
C 3 1 1
C 3 1 2
C 3 1 3
C 3 1 4
C 0 2 5 / C 0 2 6
C 0 2 5 / C 0 2 6
C 0 2 5 / C 0 2 7
C 1 4 5 / C 1 4 6
+ +
C 1 4 8
C 1 4 9
C 1 4 6 / C 1 4 7
C 1 4 6 / C 1 4 7
+
-
1 0 0 %
C 2 8 2
C 1 9 8
n
s e t
a t n - c o n t r o l l e r
i n % o f n
m a x
n a c t
n
o f f s e t
T a c h o
I n c r e m e n t a l
e n c o d e r
R e s o l v e r
I
a c t
V
a r m a t u r e v o l t a g e
C 2 3 2
I · R - c o m p e n s a t i o n
0 V = n o t o r q u e
1 0 V = m a x . t o r q u e
E x t e r n a l t o r q u e l i m i t
C 0 0 5 C o n f i g u r a t i o n
n - c o n t r o l l e r
M
s e t
i n %
o f M
m a x
I
s e t
I
m a x
I
F a c t
A d d i t i o n a l t o r q u e s e t p o i n t 1
A d d i t i o n a l t o r q u e s e t p o i n t 2
s p e e d - d e p e n d e n t
c u r r e n t l i m i t a t i o n
E n c .
c o n s t .
FIG 7-51 Signal-flow chart (section) for speed-dependent armature current limitation
Purpose
If DC machines are drive with rated armature current in field weakening operation,
the segment voltage (at the armature) can reach impermissibly high values.
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