Usage Example - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.30 Real-Time Tuning 2 (Rapid Traverse Time Constant)

14.30.4 Usage Example

This function commands with the PLC signal after the "Function Enabling Conditions" are satisfied.
 Acceleration/deceleration time constant in automatic switchover
This is a function to switch the acceleration/deceleration time constant to the optimum time constant automatically.
When this function is enabled, the acceleration/deceleration time constant is switched to the optimum time constant every
time after the smoothing zero of G0 command speed for the target axis.
 Acceleration/deceleration in manual switchover
This is a function to switch the acceleration/deceleration time constant to the optimum time constant manually.
When this function is enabled, the acceleration/deceleration time constant is switched to the optimum time constant after
the smoothing zero of G0 command speed for the target axis.
 Reset acceleration/deceleration time constant
This is a function to switch the acceleration/deceleration time constant to the maximum value of switching time constant
"tmax".
When this function is enabled, the acceleration/deceleration time constant is switched to the maximum value of switching
time constant after the smoothing zero of G0 command speed for the target axis.
For these three functions, the validity/invalidity of each function is determined by ON/OFF of the PLC output signals.
How to use each function is as follows.
Acceleration/deceleration time constant in automatic switchover
When turning ON the signal "Real-time tuning 2: acceleration/deceleration time constant in automatic switchover
(RT2CHGA:YD0C)", the acceleration/deceleration time constant can be switched to the optimum time constant automatically
at the available timing to switch.
When this signal is OFF, the acceleration/deceleration time constant is not switched to the optimum time constant even if it is
the available timing to switch.
Command
speed
Speed waveform
Derived optimum
time constant
PLC output signal
[RT2 time constant in
automatic switchover]
IB-1501668-B
G0
G0
Switch time constant
780
G0
Switch time constant Not switch time constant
Time
Time
Time