GD350A series high-performance multifunction VFD
-315-
The terminals are arranged as follows:
CME and COM are shorted through J3 before delivery, and J5 is the jumper for selecting the output
type (voltage or current) of AO2.
AI3
AO2
GND
COM
CME
Y2
S5
RO3A
RO3B RO3C
PW
+24V
S6
S7
S8
RO4A
RO4C
Indicator definition:
Indicator
Name
Function
LED1
State
indicator
This indicator is on when the expansion card is
establishing a connection with the control board; it blinks
periodically after the expansion card is properly
connected to the control board (the period is 1s, on for
0.5s, and off for the other 0.5s); and it is off when the
expansion card is disconnected from the control board.
LED4
Power
indicator
This indicator is on after the IO expansion card is
powered on by the control board.
The EC-IO501-00 expansion card can be used in scenarios where the I/O interfaces of the VFD cannot
meet the application requirements. It can provide 4 digital inputs, 1 digital output, 1 analog input, 1
analog output, and two relay outputs. It is user-friendly, providing relay outputs through European-type
screw terminals and other inputs and outputs through spring terminals.
EC-IO501-00 terminal function description:
Category
Sign
Name
Function
Power
PW
External power
supply
The working power of digital input is
provided by an external power supply.
Voltage range: 12–24 V
The terminals PW and +24V are shorted
before delivery.
Analog
input/output
AI3—GND
Analog input 1
1. Input range: 0–10 V, 0–20 mA
2. Input impedance: 20 k
Ω
for voltage
input; 250
Ω
for current input
3. Set it to be voltage or current input
through the corresponding function code.
4. Resolution: When 10 V corresponds to
50 Hz, the minimum resolution is 5 mV.