opto engineering LTDVE1CH-40F, Инструкция по эксплуатации

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Firmware version 1.10 - Document version 1.06 - eng
LTDVE1CH-40F | INSTRUCTIONS MANUAL
Table 8: pinout of serial interface in connector P5
The interface is NOT electrically isolated. Note that GND is internally connected to 0V.
8.4.4. External temperature sensor
The controller allows for the connection of one external temperature sensor. The intended
temperature sensing element is a NTC (Negative Temperature Coefficient) thermistor with
coefficients R
25
= 10 kΩ and B
25/85
= 3610 K. A suitable component is the Vishay
NTCS0603E3103FMT.
The signals are listed in Table 9: pinout of external temperature sensor in connector P . The two
terminals can be connected freely to the external thermistor, as the component is not polarized.
Pin number Name Description
5 NTC_A Temperature sensor terminal A
13 NTC_B Temperature sensor terminal B
Table 9: pinout of external temperature sensor in connector P5
These analogue signals are not electrically isolated from the controller electronics. Be careful not to
connect them to any other signal. A severe malfunction or even a short circuit may occur.
8.5. Cable size and length
The actual connecting cables must be chosen on the basis of their load sinking current, the length,
the working voltage and the cable materials characteristics. Special ambient conditions may further
restrict the choice to a specific kind of cable.
The Table 10: cable wire size and length lists the recommended wire sizes and maximum allowed
lengths for all the cables coming to and leaving from the controller. American Wire Gauge (AWG) is
the wire measurement system used by the United States and Canada, while mm is the metric system
of measurement used across Europe and in most of the world.
Port
Recommended wire size
Maximum length [m]
mm 2 AWG
Power and logic supply 1.5 15 5
Light output 0.75 18 3
Synchronization inputs 0.25 24 5
Synchronization outputs 0.25 24 5
Serial RS485 interface 0.25 24 5
External temperature sensor 0.25 24 5
Table 10: cable wire size and length
For improved immunity against external disturbance sources, use a single shielded cable or multiple
shielded cables, grounded at the end opposite to the controller, on the synchronization input,
synchronization output, serial RS485 interface and external temperature sensor signals.