Elettronica Santerno SINUS K, User Manual

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SINUS K
INSTALLATION
INSTRUCTIONS
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12. SERIAL COMMUNICATIONS
12.1. General Features
The inverters of the SINUS K series may be connected to peripheral devices through a serial link; this enables
both reading and writing of all parameters normally accessed through the display/keypad. Two-wire RS485 is
used, which ensures a better immunity to disturbance even on long cable paths, thus limiting communication
errors.
The inverter will typically behave as a slave device (i.e. it only answers to queries sent by another device); a
master device (typically a computer) is then needed to start serial communication. The inverter may be
connected directly to a computer or a multidrop network of inverters controlled by a master computer (see
diagram below).
Figure 45: Example of multidrop and direct connection.
The Sinus K is supplied with a connector which is equipped with 2 pins for each signal of the RS485 pair, thus
allowing easier multidrop links with no need to connect two conductors to the same pin, and thus avoiding
creating a star network, which is not recommended for this type of bus.
Any information sent to/from the inverter through the display/keypad unit may be
obtained also via serial link using the RemoteDrive software offered by Elettronica
Santerno. RemoteDrive allows the following functions: image acquisition, keypad
simulation, oscilloscope functions and multifunction tester, table compiler including
operation data log, parameter setup and data reception-transmission-storage from
and to a computer, scan function for the automatic detection of the connected
inverters (up to 247 inverters may be connected). Please refer to the RemoteDrive
Instruction Manual for the inverters of the SINUS K series manufactured by Elettronica Santerno.