Lenze 4800 - DT1 Element

Configuration
7-85
48XX/49XXSHB0399
7.5.11 DT1 element
Purpose
The DT1 element is to differentiate signals.
It can, for instance, be used for acceleration compensation (dv/dt).
Parameter setting
4900Str072
C 146/C 147 C 145/C 146
C 652
C 145/C 146
±200 %
C 653 C 650 C 651
In p u t Output 1
Out
p
ut 2
FIG 7-45 1st order derivative element (DT1 element)
1. Input
With the function ”freely assignable analog inputs” each input can be assigned to
a ”terminal signal” from the table in C145.
2. Outputs
With the function ”freely assignable analog inputs” the outputs can be assigned to
the targets listed under C146. The same signal is assigned to both outputs. The
output signal is limited to max. 200%.
3. Function
The gain K is set under code C650, the delay time Tv is set under C651. The input
sensitivity of the DT1 element can be reduced under C653, i.e. according to the
settings, only the high-value bits indicated are evaluated.
4900Str073
tTv
K
FIG 7-46 Transfer characteristic of the DT1 element
Code
Name
Possible settings
C
o
d
e
N
a
m
e
Lenze Selection Info
C650* Gain 1.00 -10.00 {0.01} +10.00
C651* Time
constant
1.0 s 0.01 s {0.01 s} 1.00 s
1.0 s {0.1 s} 5.0 s
C652* Input 0% -100.0 % {0.1 %} 100.0 %
-200 % {1 %} +200 %
Display parameter only
C653* Input
sensitivity
-1- 15 bit evaluation
-2- 14 bit evaluation
-3- 13 bit evaluation
-4- 12 bit evaluation
-5- 11 bit evaluation
-6- 10 bit evaluation
-7- 9 bit evaluation
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