Additional Control Functions - Lenze 4800 Manual

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7.6

Additional control functions

7.6.1 Additional torque values
Stop!
The external torque limitation has an effect on the n controller input, not on the
sum of torque set-value signals.
T a c h o
3
4
± 1 8 0 V
I n c r e m e n t a l
e n c o d e r
C 2 5 / C 2 6
R e s o l v e r
V
A B
A r m a t u r e v o l t a g e
E x t e r n a l t o r q u e l i m i t
2
1
0 V = n o t o r q u e
1 0 V = m a x . t o r q u e
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
FIG 7-50
Purpose
The additional torque set-values can be used for friction compensation or
acceleration (dv/dt)
Parameter setting
1. Input
With the function "freely assignable analog inputs" each input can be assigned to
a "terminal signal" from the table in C145.
If signals are assigned to the inputs, the inputs codes are for display only. If the
terminal control is deactivated, the actual terminal value will be accepted for
operation.
n
o f f s e t
C 0 2 5 / C 0 2 6
C 1 4 5 / C 1 4 6
+
C 0 2 5 / C 0 2 7
C 0 0 5 C o n f i g u r a t i o n
1 1
C 2 7 C 2 8
1 3
E n c .
c o n s t .
1 2
1 0
-
C 0 2 5 / C 0 2 7
C 2 3 2
I a c t
I · R - c o m p e n s a t i o n
C 0 2 5 / C 0 2 6
C 1 4 5 / C 1 4 6
+
C 0 2 5 / C 0 2 7
C 1 4 6 / C 1 4 7
C 1 4 6 / C 1 4 7
Signal-flow chart (section) for additional torque set-values
n a t n - c o n t r o l l e r
s e t
i n % o f n
m a x
C 0 5 0
Q S P
n a c t
n - c o n t r o l l e r
C 0 5 1
+
-
C 0 7 0 V
p n
C 1 9 8
C 0 7 1 T
n n
C 0 7 2 K
d n
1 0 0 %
C 0 4 7
+
-
C 2 8 2 C 1 4 8
C 1 4 9
Configuration
C o n f i g u r a t i o n C 0 0 5 = - 1 x -
M i n %
s e t
o f M
m a x
C 0 5 6
+ +
I F a c t
C 3 1 0
C 3 1 1
C 3 1 2
C 3 1 3
C 3 1 4
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
I s o l l
C 0 6 3
I m a x
C 0 2 2 , C 0 2 3
4900Str077
48XX/49XXSHB0399
7-89