ALTHEN NM1-ISU-IP-3L-24 Series, Manual

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3 Technical Description
This single axis, industrial tilt measuring system, which consists of one none-contact sensor and an
electronic customized for said sensor, serves to measure accurate tilt angles in x-axis and is intended
for side wall mounting. The range of the angle to measure can be set by an internal dip-switch. The
measured values are put out digitally via a RS232 interface. With version …-420-… these values can
also be read out via standard 4 … 20 mA analogue output.
The measuring system is contained a robust aluminum die cast enclosure which is perfectly suited for
rough industrial environment.
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4 Terminal Assignment
The electrical connection (Unitronic FD CP plus 3x2x0,25mm²) has been made via EMC cable glands and
soldered inside. The length varies, depending on the version. The shield of the cable is connected to the
housing.
Clamp Description Color
1 Supply voltage white
2 GND Supply voltage brown
3 RS232-interface (9600 Baud, 8N1) pink
4 External control signal for tare / zero* grey
5 GND Analogue output green
6 Analogue output 4…20 mA yellow
EMC-Cable-gland Shield Cable shield/blank
*In order to tare the read-out, put 24V on pin 4. It is to be secured against unintentional operation.
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4.1 Supply Voltage
The supply voltage can be 22 … 26 VDC. An external Fuse of SI
extern
=200mA is necessary.
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4.2 Measuring value output RS-232
The measured values are put out constantly via the RS-232-interface (9600 Baud, 8N1) with a
sampling rate of approx. 2 per second and may be displayed and recorded with a terminal-application
like HyperTerminal for Windows
®
for example.
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4.2.1 Measuring value output 4 … 20 mA
In case of version …-420-… the tilt angle can be read out via the analogue output of 4 … 20 mA. For
scaling please refer to page "Device-Configuration".”. Max. impedance is 500 Ohms.
Scaling (example -see next page): -10° … 0 … +10°
4 … 12 … 20 mA