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09.02
Start-Up
Siemens AG 6SE7087-6AK85-1AA0
4-31
Rectifier/Regenerating Unit Operating Instructions
4.3.5 Analog
output
1 analog output, which can be parameterized,
at the control terminal strip (board CUR, -X102 / Section 3.3)
to output actual values and other internal rectifier/regenerating unit quantities.
Analog output:
- Voltage range:
±
10V
- Resolution: 39mV (8 bits + sign)
-
Accuracy:
±
5%
- Smoothing: 20ms
- Output current: max.
±
5mA
- Short-circuit proof and non-floating
Connecting-up:
Refer to "Control terminal strip", Section 3.3
Parameterization:
Also observe "Function diagram, analog output CUR", Section 4.4!
♦
Enter the parameter number (0 to 999) whose value is to output, in P655 "CUR-AA actual values".
♦
Set the analog output gain factor in P656 "CUR-AA gain".
(setting range: -320.00V to +320.00V / pre-setting: +10.00V
⇔
gain of 1)
♦
Set the offset in P657 "CUR-AA offset".
(setting range: -100.00V to +100.00V / pre-setting: +0.00V
⇔
no offset)
The following is obtained for the calculation from the "Function diagram, analog output CUR":
[ ]
[ ]
[ ]
[ ]
V
in
Offset
V
in
ain
G
%
100
%
n
i
value
Parameter
Uoff
+
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
×
=
Pre-assignment (gain of 1 and no offset):
100% = 10V
The parameter value in [%] for the appropriate parameter number can be taken from the parameter list,
Chapter 5!
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