Battery Voltage Measurement - ABB REC 523 Technical Reference Manual

REC 523
5.3.5.
34
Remote Monitoring and Control Unit
Technical Reference Manual
heating limit. For more information about the parameters of the PSC board, refer to
the CD-ROM Technical Descriptions of Functions (refer to Section 1.8. Related
documents).
Cooling is needed if the environmental conditions may cause the temperature inside
the cabinet to rise above the operation limit. The figure below shows an example of
a CAP application used for controlling a cooler. In this example, the temperature
measured by REC 523 is forwarded to the COMH_1 function via the input
PSC_7_Temperature, the value of which is compared to the values of the parameters
Hlimit and Llimit. If the value of the input is higher than or equal to the
temperature defined with the Hlimit parameter, the PSC_7_SO1 output is
switched on. Accordingly, if the temperature is lower than or equal to the value
defined with the Llimit parameter, the output is switched off.
Note that the indications and parameters used for heater control
should not be used when a cooler is controlled.
PSC_7_Temperature
Hlimit
Llimit
Fig. 5.3.4.-1 Example of a CAP application used for controlling a cooler

Battery voltage measurement

The REC 523 device incorporates measurement of the battery voltage. The
measured value can be forwarded to the control centre. The dead band of the voltage
change report is defined by the voltage delta parameter of the PSC board. For more
information about the parameters of the PSC board, refer to the CD-ROM, Technical
Descriptions of Functions, see Section 1.8. Related documents.
COMH_1
COMH
IN Q
HHYS
LHYS
1MRS750881-MUM
PSC_7_SO1
A050001