Mitsubishi Electric FR-F800 Series Instruction Manual page 258

 Changing the command interface using a signal input via external
terminal (X67 signal)
• In the Network operation mode, the command interface for the operation command and the speed command can be
changed using the Command source switchover (X67) signal. This method may be useful to use both external terminal
and communication interface by using a different interface according to the command type.
• For the X67 signal, set "67" to any parameter from Pr.178 to Pr.189 (Input terminal function selection) to assign the
function to a control terminal.
• When the X67 signal is OFF, the command interface for the operation command and the speed command is the control
terminal.
X67 signal state
Signal not assigned
ON
OFF
NOTE
• The ON/OFF state of the X67 signal is applied only during a stop. When the terminals are switched during operation, the ON/
OFF state is reflected after a stop.
• When the X67 is OFF, a reset via communication is disabled.
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.28 Multi-speed input compensation
Pr.59 Remote function
Pr.79 Operation mode
5.6.4
This function can prevent reverse rotation fault resulting from the incorrect input of the start signal.
Pr.
78 Reverse rotation
D020 prevention selection
• Set this parameter to limit the motor rotation to only one direction.
• This parameter is valid for all of the reverse rotation and forward rotation keys of the operation panel and of the parameter
unit, the start signals (STF, STR signals) via external terminals, and the forward and reverse rotation commands through
communication.
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Interface for the operation
Determined by Pr.338 setting
Control terminal only
selectionpage 263
selectionpage 228
selectionpage 240
Reverse rotation prevention selection
Name Initial value
0
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Interface for the speed command
command
Determined by Pr.339 setting
Setting range
0 Both forward and reverse rotations allowed
1 Reverse rotation disabled
2 Forward rotation disabled
5.6 (D) Operation command and frequency command
Description
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
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