Delta RPI-H3 User Manual

5.4 Communication Module
The Communication Module supports the function of communication with computer,
and provides 2 ports of RS-485 .When using this module, the first step is to take off
the cover located at the right bottom of inverter and pull out the RS485 socket as shown
in Figure 5-6.
Figure 5-6 : Communication module
5.4.1 RS-485 Connection
The pin definition of RS-485 is shown as in Table 5-4 and protocol settings are listed
in Table 5-5. The wiring of multi-inverter connection is shown as figure 5-7.
Table 5-4 : Definition of RS-485
PIN
FUNCTION
1
VCC
2
GND
3
4
5
6
DATA+
DATA
-
DATA+
DATA
-
Terminal resistor switch
27
Wiring

Delta RPI-H3 Specifications

General

Brand	Delta
Model	RPI-H3
Category	Inverter
Language	English