Inovance MD500T75G - Page 249

MD500 User Manual 9. Peripheral and Options
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Description of Terminals and Jumpers
The following table describes the terminals of the MD38IO1.
Type Terminal Terminal Name Function Description
Power supply
+24V-COM
External +24V
power supply
Provide a +24 V power supply to an external unit.
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Max. output current: 200 mA
OP1
Digital input
power terminal
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When applying an external power supply, remove
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connect the OP1 to the external power supply.
Analog input AI3-PGND Analog input 3
Optically-coupled isolation input, supporting differential
voltage input and temperature detection resistance input
Input voltage range: -10 to 10 VDC
Connect the PT100 or PT1000 temperature sensor
Input mode determined by DIP switch S1, multiple
functions not supported simultaneously
Digital inputs
DI6-OP1 Digital input 6 Optically-coupled isolation compatible with dual-polarity inputs
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DI7-OP1 Digital input 7
DI8-OP1 Digital input 8
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DI10-OP1 Digital input 10
Analog output AO2-GND Analog output 2
Output voltage range: 0 to 10 V
Output current range: 0 to 20 mA
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Digital output DO2-CME Digital output 2
Optically-coupled isolation, dual-polarity open-collector output
Output voltage range: 0 to 24 V
Output current range: 0 to 50 mA
Note that CME1 and COM are internally insulated, but are
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J7 if you need to apply external power to DO2.
Relay outputs
(RELAY2)
PA- PB
Normally-closed
(NC) terminal
Contact driving capacity:
250 VAC, 3 A, Cos f = 0.4
30 VDC, 1 A
PA- PC
Normally-closed
(NC) terminal
RS485
communication
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COM
Communication
interface
Modbus-RTU communication input and output terminal, isolated input
CAN
communication
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COM
Communication
interface
CANlink communication input terminal, isolated input
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