Inovance MD500-PLUS Series - Page 136

Electrical Installation
‑135‑
Table 7–17 Description of control circuit terminals
Item
Terminal Code Terminal Name
Description
Power
supply
+10 V‑GND
External +10 V
power supply
Provides +10 V power supply to an
external unit. Its maximum output
current is 10 mA.
It is generally used to supply power to an
external potentiometer with resistance
ranging from 1 kΩ to 5 kΩ.
+24 V‑COM
External +24V
power supply
Provides +24 V power supply to an
external unit. It is generally used to
supply power to digital input/output
terminals and external sensors.
Maximum output current: 200 mA
Analog
input
AI1‑GND
Analog input
terminal 1
Input voltage range: –10 VDC to +10 VDC
Input impedance: 22 kΩ
AI2‑GND
Analog input
terminal 2
Input range: –10 VDC to +10 VDC or 0–20
mA, as determined by the J7 jumper on
the control board
Input impedance: 22 kΩ (voltage input)
or 500 Ω (current input)
AI3‑GND
Analog input
terminal 3
Input range: –10 VDC to +10 VDC/0–20
mA, as determined by the J5 jumper on
the control board
Input impedance: 22 kΩ (voltage input)
or 500 Ω (current input)
Digital
input
DI1‑COM
Digital input 1 Photocoupler isolation enabled with an
input frequency less than 100 Hz. It is
driven by external or internal power as
determined by the J1 jumper on the
control board.
Input impedance: 1.39 kΩ
Voltage range with effective level input:
9–30 V
DI2‑COM
Digital input 2
DI3‑COM
Digital input 3
DI4‑COM
Digital input 4
DI5‑COM
Digital input 5
Analog
output
AO1‑GND
Analog output 1
Whether voltage or current is output is
determined by the J4 jumper on the
control board. The maximum load
resistance is 500 Ω.
Output voltage range: 0–10 V
Output current range: 0–20 mA
AO2‑GND
Analog output 2
Whether voltage or current is output is
determined by the J6 jumper on the
control board. The maximum load
resistance is less than 500 Ω.
Output voltage range: 0–10 V
Output current range: 0–20 mA