Inovance MD500 Series - About Use of MD500 Terminals

7. Interfaces and Communication
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Chapter 7 Interfaces and Communication
7.1 About Use of MD500 Terminals
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Use of DI Terminals
There are ve digital inputs on control board, DI1 to DI5. There are ve extra digital inputs on
optional I/O extension board, DI6 to DI10,which are available to use if you have this option
installed.
All digital input terminals on the drive are two-state. DI conguration is set by F4-38 (for DI1 to
DI5) and F4-39 (for DI6 to DI10). Default value for these two parameters is 00000, which means
all DI terminals use the following logic conguration:
● Logic 0 (terminal is inactive) is when DI terminal 24 V line is not shorted to COM.
● Logic 1 (terminal is active) is when DI terminal 24 V line is shorted to COM.
If necessary, you can change logic conguration for any of DI terminals by setting relevant bit in
correct parameter.
Parameters F4-00 to F4-09 dene which of the 50 available functions is allocated to each of the
ten DI terminals.
Note
Only DI5 is allowed to receive high-speed pulse signals. If your application uses
high-speed pulse counts, then you must use DI5 for this input.
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Filter Time and Delay Functions
F410 sets a lter time on the DI signal to improve performance of the drive in conditions of strong
electrical interference.
The drive also provides a signal delay function on digital inputs DI1 to DI3 to support some
applications that require a delayed digital input. You can set the delay separately for each of the
three DI terminals:
● Function code F4-35 controls the delay on DI1.
● Function code F4-36 controls the delay on DI2.
● Function code F4-37 controls the delay on DI3.
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Use of DO Terminals
There are three digital output terminals on control board:
● FM is a transistor output capable of driving a 24 V DC low-voltage circuit.
● DO1 is a transistor output capable of driving a 24 V DC low-voltage circuit.
● TA/TB/TC is a relay output that can drive a 250 V AC control circuit.
There are two additional digital outputs on the optional I/O extension board, which are available
to use if you have this option installed.
● DO2 s a transistor output capable of driving a 24 V DC low-voltage circuit.
● PA/PB/PC is a relay output that can drive a 250 V AC control circuit.
Function codes F5-01 to F5-05 dene how DO terminals indicate the running status and alarm
information for the AC drive. There are 40 functions available to use for these function codes.