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NORMA Process Interface (Optional)
Process Interface 9
9-3
Process Interface
The Process Interface allows simultaneous analysis of the electrical and mechanical
power of up to four motors (generators). The torque and rotational speed are measured
via frequency inputs or as analog signals.
Pin Assignment
Figure 9-1 shows the Process Interface that is located on the rear panel of the Power
Analyzer (see "Design and Functions" in Chapter 3).
1
14
13
25
M 1-
N 1-
M 2+
N 2+
D 2+
M 3-
N 3-
M 4+
N 4+
D 4+
A 1
A 3
A 4
A 2
AGND
N 4-
M 4-
D 3+
N 3+
M 3+
N 2-
M 2-
D 1+
N 1+
M 1+
esn063.eps
Figure 9-1. Process Interface Pin Assignment
Pin Assignment
M1+...M4+
M1-...M4-
Four inputs for torque; configurable for analog or digital signals
N1+...N4+
N1-...N4-
Four inputs for rotational speed; configurable for analog or digital signals
D1+...D4+ Four inputs for sensing rotation; only for motor analysis with digital speed inputs;
corresponding inputs, that is N1/D1 share a LO port
AGND Analog ground input
A1...A4 Four analog outputs
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