VD520 Series Inverter User Manual Mechanical and Electrical Installation
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Power Supply
OPEN
External
power input
terminal
1. Connect to 24V by default, J14 jumper on
main control board to 24V or COM
connection.
2. When external power is used to drive
DI1~DI5, HDI1, OPEN needs to connect to
the external power supply and disconnect
J14(disconnecting with +24V/COM).
Communicati
on
485+-485-
RS-485
communicatio
n terminals
Standard RS-485 communication terminal,
should use twisted pair cable
Analog Input
AI1-GND
Analog input
terminal 1
1. Input Voltage range : DC 0V to 10V
2. Input resistance : 22kΩ
AI2-GND
Analog input
terminal 2
1. Input range : DC 0V to 10V or
0/4mA~20mA, can be selected by J5 jumper
on main control board, default DC0V~10V
signal;
2. Input impedance: under voltage input-22
kΩ,
under current input 500Ω.
Digital Input
DI1-COM
Digital input
terminal 1
1. Optical coupling isolation, compatible with
dual polarity input, internal resistance 3.3kΩ;
2. Multi-function digital input, through
F5-01-F5-05 to set function.
3. The inverter d24v power supply
built-in, COM is common terminal.
4. When using external power, JP14 should
be suspended, ex24V connect to
OPEN terminal, COM is common
terminal(external voltage supply range
+24V±10%).
DI2-COM
Digital input
terminal 2
DI3-COM
Digital input
terminal 3
DI4-COM
Digital input
terminal 4
DI5-COM
Digital input
terminal 5
HDI1-COM
High speed
pulse input
terminal
1. When used as general digit input, it is the
same function as DI1~DI5;
2. Can be combine with OPEN terminal as
bipolar high speed pulse input terminals, max
input frequency is 100kHz
。
3. When use external power, input voltage
range +24V±10%;
4. The internal impedance 1.6
5 kΩ
Analog
Output Digital
Output
AO1-GND
Analog output
terminal 1
Support 0V~10V voltage or 0/4mA~20mA
current output, decided by jumper J3, default
0V~10V voltage output
AO2-GND
Analog output
terminal 2
Support 0V~10V voltage or 0/4mA~20mA
current output, decided by jumper J4, default
0V~10V voltage output
