2.4. ISOLATION
Converter ADA-4040PC3 has 3-way galvanic isolation on the levels 1kV= or 3kV=, depend on version described in section
VERSIONS.
Fig 2. Isolation structure
3. INSTALLATION
This chapter will show how to use and connect ADA-4040PC3 to SumMaster inverters of MASTERVOLT* company, equipped with
RS485 interface, to RS485 / RS422 bus and to power supply.
In the purpose of minimization of disruptions from environment is being recommended to:
- apply multipair type shielded cables, which shield can be connected to the earthing on one end of the cable,
- arrange signal cables in the distance not shorter than 25 cm from powering cables.
- apply cable of adequate cross-section due to voltage drops for converter powering,
- use suppression filters for powering converters that are installed within a single object.
- not supply converter from power circuit device that generates large impulse interference such as transmitters, contactors.
3.1. ASSEMBLING
The cover of ADA-4040PC3 converter is adapted to assembly on TS-35 (DIN35) rail. To install the converter, should be mounted on
the rail upper part of the cover then press bottom part to hear characteristic „Click” sound.
3.2. COMPUTER CONNECTION
To connect ADA-4040PC3 to computer, is needed additional converter e.g. ADA-I1040 RS232 to RS485/RS422 converter or ADA-
I9140 USB to RS485/RS422 converter; connected to SUN (5-pin connector) port of ADA-4040PC3.
Typical connections of ADA- 4040PC3 to PC are shown bellow.
Fig 3. 4-Wires connection of ADA-4040PC3 to PC with the use of ADA-I1040 - RS232 to RS485/RS422 converter
Fig 4. 4-Wire connecting ADA-4040PC3 to PC with the use of ADA-I9140 USB to RS485/RS422
5
ADA-4040PC3
POWER
10 - 30VDC
SunMaster
RS485
MODBUS-
RTU
RS485/RS422
3-WAY ISOLATION
(5) GND
GND
(2) Rx
(3) Tx
RS232
Connector
DB-9F/DCE
RS485 / RS422
connector
RS232
connector
DB-9M/DTE
PC
ADA-I1040
GND (5)
Tx (2)
Rx (3)
Rx+
Rx-
Tx+/ A
Tx-/ B
Tx+ / A
Tx- / B
Rx+
Rx-
RTU
RS485 / RS422
connector
Tx+ / A
Tx- / B
GND
Rx+
Rx-
SUN
RS485 / RS422
connector
ADA-4040PC3
GND
GND
USB
USB
connector
RS485 / RS422
connector
USB
connector
ADA-I9140
USB
Rx+
Rx-
Tx+/ A
Tx-/ B
Tx+ / A
Tx- / B
Rx+
Rx-
RTU
RS485 / RS422
connector
Tx+ / A
Tx- / B
GND
Rx+
Rx-
SUN
RS485 / RS422
connector
GND
PC
ADA-4040PC3
