Siemens SIMOVERT Master Drives 6SE70 Betriebsanleitung Seite 305

09.02
•
Configuring examples:
Example 1 : Available:
Required:
♦ Connect-up parameter R037 at the analog output:
P655 "CUR-AA actual values" = 037
♦ Converter the required output range in [%]:
r037 should be taken from the parameter list, Section 5:
Analog output: 100% = 1.35 x P071 (in this case: 1.35 x 400 V = 540 V)
Thus, the following is obtained for the range to be represented:
400 V → 74.05% (Parameter value PWE1)
600 V → 111.07% (Parameter value PWE2)
♦ Define gain factor P656 and offset P657 :
The following is obtained from the formula shown above:
[ ]
Gain factor V
[ ]
Offset V
To be adjusted:
Siemens AG 6SE7087-6AK85-0AA0
Common Rectifier Operating Instructions
P071 (line voltage) = 400 V
Map the actual DC link voltage r037 between 400 and 600 V to 0.00V to
+10.00 V at the analog output
[ ] [ ]
( )
− ×
U V U V 100
off1 off2
=
[ ] [ ]
−
PWE % PWE
1 2
− ×
10,00 V 100
=
−
37 %
⎛
[ ]
Gain factor
−
⎜
= U V
off1
⎝
100
⎛ ×
27.03 V 74.05
= −
⎜
0 V
⎝
100 %
gain:
offset:
to be represented as U off1 = 0.00 V
to be represented as U off2 = +10.00 V
−
% (0.00 V 10.00
=
−
% 74.05 % 111.07
=
27.03 V
[ ]
[ ]
× ⎞
V PWE %
1
= −
⎟
0V
⎠
%
⎞
%
= −
⎟
19 . 98 V
⎠
P656 = +27,03V
P657 = − 19,98V
×
V) 100 %
%
⎛ × ⎞
27.03 V 74.05 %
⎜ ⎟
⎝ ⎠
100 %
ENGLISH
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