External I/O Signal Logic Switching Function - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

13.4

External I/O Signal Logic Switching Function

This function switches the signal logics according to the external device connected to the positioning module.
For the system in which Drive unit READY signal handled as a normally closed contact, upper limit switch, and lower limit
switch are not used, controlling can be performed by this function without wiring if the parameter logic setting is changed to
Positive logic.
When Drive unit READY signal, upper limit switch, and lower limit switch are used, ensure to use them as normally closed
contacts.
Parameter setting details
To use the external I/O signal logic switching function, set the parameters shown in the following table.
Setting item Setting detail
[Pr.22] Input signal Set the logic of each input signal according to the external device.
logic selection
b0
b1
b2
b3
b4
b5
b6
b7
b8
b9 to b15
[Pr.23] Output signal Set the logic of each output signal according to the external device.
logic selection
b0
b1 to b3
b4
b5 to b15
Precautions on the parameter setting
• The parameters for the external I/O signal logic switching function become valid at the timing when [Cd.190] PLC READY
signal is turned off and on. (The logic is negative right after the power is turned on.)
• If the logic of each signal is set incorrectly, the operation may not be performed properly. Before setting logics, check the
specifications of the device used.
Lower limit signal
Upper limit signal
Drive unit READY signal
Stop signal
External command signal
Zero signal
Near-point dog signal
Use prohibited Set 0.
Manual pulse generator input
Use prohibited Set 0.
Command pulse signal
Use prohibited Set 0.
Deviation counter clear signal
Use prohibited Set 0.
Initial value
at the
factory
0
• 0: Negative logic
• 1: Positive logic
• 0: Negative logic
• 1: Positive logic
0
• 0: Negative logic
• 1: Positive logic
• 0: Negative logic
• 1: Positive logic
13.4 External I/O Signal Logic Switching Function
Buffer memory address
Axis 1 Axis 2
31 181
32 182
13 COMMON FUNCTIONS
13
305