7 
 
2.4 Extension I/O card MD38IO1 
NOTE: MD38IO1 applies to the drive 3.7 kW and above only. 
  
 Control configuration 
Item 
Listing Description 
Inputs 
5 digital inputs; 
1 analog input 
AI range:-10 to 10 VDC, it can be used as AI, PT100 and PT1000 input 
(thermal sensor, 0 to 200°C). 
Outputs 
1 relay; 
1 digital output; 
1 analog output 
 
Communication 
RS485 interface; 
CAN interface 
RS485 supports MODBUS-RTU protocol; 
CAN supports CANlink protocol 
 Terminals  
Terminal Terminal Name Description 
+24V-COM 
+24 VDC power supply 
Provide +24 VDC power supply externally. Usually, it provides power 
supply to DI/DO terminals and external sensors. 
Max. output current: 200 mA. 
OP1 Input terminal of external power supply 
Connect to +24 VDC by default. Whether it connects to +24 
decided by jumper J8. When DI6 to DI10 
need to be driven by the external 
signal, OP1 needs to be connected to the external power supply and be 
disconnected from +24 VDC. 
AI3-PGND Analog input 3 
Optical coupling isolation, compatible with differential signal and 
PT100/PT1000 temperature sensor input (0 to 200°C).  
Input voltage range: -10 to 10 VDC. 
Use dial switch S1 to select different input mode: Analog, or PT1000 or 
PT100, must not select more than one mode at one time. 
DI6-COM Digital input 6 
Optical coupling isolation, compatible with dual-polarity input.  
 
Input voltage range: 9 to 30 VDC. 
. 
DI7-COM Digital input 7 
DI8-COM Digital input 8 
DI9-COM Digital input 9 
DI10-COM Digital input 10 
AO2-GND Analog output 2 
Voltage or current output, determined by jumper J3 on 
Output voltage range: 0 to 10 VDC. 
Output current range: 0 to 20 mA. 
Impedance range: for current output,0 to 500  
DO2-CME1 Digital output 2 
Multi-function and dual-polarity and open-collector output. 
Voltage range: 0 to 24 VDC. 
Current range: 0 to 50 mA.