DRV-28 inverter
s Extension cards
-288-
AI3
AO2
GND
COM
CME
Y2
S5
RO3A
RO3B RO3C
PW
+24V
S6
S7
S8
RO4A
RO4C
Indicator definition
Indicator No.
Definition
Function
LED1
State indicator
This indicator is on when the extension card
is establishing a connection with the control
board; it blinks periodically after the
extension 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 extension card is disconnected from the
control board.
LED4
Power indicator
This indicator is on after the IO extension
card is powered on by the control board.
The AS28INU0001 extension card can be used in scenarios where the I/O interfaces of a DRV-28
inverter 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.
AS28INU0001 terminal function description
Category
Label
Name
Function description
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 kΩ 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.
5. Deviation:±0.5%; input of 5 V or 10 mA or
higher at the temperature of 25°C
AO2—GND
Analog output 1
1. Output range: 0–10 V, 0–20 mA
2. Whether it is voltage or current output is
determined by J5.
