6 Installation
Installation and Operation Manual for RPI M6A M8A M10A inverters V1.0 2016-02-03
48
6.4.3 Wiring dry contacts with 12 V
DC
power sup-
ply from RS485 card
This procedure is possible for communication card type 1 and 2.
But it is not recommended for communication card type 2 as this
card has a 12 V
DC
power supply on-board.
The concept of wiring described in this section
uses both holes of the bolting on the communica-
tion port. Therefore, it does not work when you
want to use the digital inputs and/or EPO.
The concept of wiring described in this section
uses two holes of the bolting on the RS485 port.
Therefore, it does not work when you want to
connect multiple inverter via RS485.
Terminal block for
RS485 and VCC
DIP switch for RS485
termination resistor
Terminal block for
RS485 and VCC
DIP switch for RS485
termination resistor
Fig. 6.32: Components on the RS485 card
Dry contacts
Digital inputs and
External Power Off
Fig. 6.33: Communication card type 1
GND
VCC
DATA+
DATA-
DATA+
DATA-
RS485 terminal block Dry contacts plug
Strobe light Buzzer
Fig. 6.34: Providing a 12 V
DC
supply power for an external
alarm device from the RS485 card, variant 1
GND
VCC
DATA+
DATA-
DATA+
DATA-
RS485 terminal block Dry contacts plug
Strobe light Buzzer
Fig. 6.35: Providing a 12 V
DC
supply power for an external
alarm device from the RS485 card, variant 2
1. On the communication port, unscrew the cable gland and
remove cable gland and sealing.
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