18
6
6.2.2 Signaling
In order to increase the resistance to interference, transmitting the signals in an
interpolated form is recommended. Transmitting signals in opposite phases
symmetrically can almost entirely prevent interference. The amplitude of the
differentially transmitted signals equates to 1V
SS
.
For single-ended signaling, the voltage changes relative to a reference potential.
The amplitude of such a signal amounts to 0.5 V.
This interface works with all standard controllers that support a 1 V
SS
voltage
interface.
6.2.3 Pin allocation for analog interface module 1VSS
(IM SCPA)
Interface module: Male 9-pin D-sub connector.
Customer-supplied cable: Female 9-pin D-sub connector
Pin Signal Signal type
1 Ua1 - Sine-
2 GND Supply voltage
3 Ua2 - Cosine-
4 ERR NOT Error signal
5 Ua0 - Reference signal -
6 Ua1 + Sine +
7 +5V DC Supply voltage
8 Ua2 + Cosine +
9 Ua0 + Reference signal +
6.2.4 Function Check
The green LED will light up if the MINISCALE PLUS is correctly supplied with
power.
Output Signals and Supply
Interface module without MINISCALE PLUS flexible
printed circuit board. Both the green and red LEDs
light up
Interface module with correctly connected
MINISCALE PLUS flexible printed circuit board.
The green LED lights up
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