Measurement Functions; Temperature Measurement - ABB ARC600 User Manual

Functional description
consumed so far. The file header contains the unloaded battery voltage before the
load is applied. The last line of the file contains information whether the test was
completed successfully or aborted for a specific reason.
4.5

Measurement functions

The device measures the battery voltage and the ambient temperature. The
temperature measurement is calibrated to measure the ambient temperature
of the device mounted in an enclosure. The temperature measurement is used
to compensate for the charging voltage of the batteries and for activating or
deactivating heating in cold environments. The battery voltage is measured as
two values: the minimum battery voltage and the maximum current during control
operation. The minimum battery voltage indicates the lowest voltage measured
during a battery test or during an object's operation. The battery-charging voltage
indicates the present voltage on the battery poles. The values can be read from the
network control center via the supported communication protocols. The minimum
battery voltage and the maximum current can be reset via the serial bus.
The device supports a general-purpose analog input that can be used as a
transducer input. It supports voltage mode -5...5 V, ±300 mV (-10...+55°C, 0...+5 V).
The input can be used as current mode 4...20 mA using an external resistor.
4.5.1

Temperature measurement

The device has four temperature sensors.
4.5.1.1 Processor temperature
The ambient temperature of the process is measured by a sensor whose
measurement result is available on the System tab of the Web user interface and
with the command line command temperature. The measurement data of the
sensor is not available with protocol communication.
4.5.1.2 Communication module temperature
The internal temperature of the wireless communication module is available on the
Web user interface under Tools > Modem Info and with the command line command
modeminfo. The measurement data of the sensor is not available with protocol
communication.
4.5.1.3 Sensor for the temperature compensation of the charging voltage
The internal sensor of the device adjusts the battery charging voltage based on the
battery temperature. The data about the temperature is gained with the help of a
2.2 kΩ NTC thermistor that is connected to pins 3 and 5 of the connector X2.1. The
thermistor is located between the batteries. The measurement data of the sensor
is not available with protocol communication but it is only used for adjusting the
charging voltage.
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1MRS758459 J
ARC600
User Manual