Precautions - 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)
Reset acceleration/deceleration time constant
When turning ON "Real-time tuning 2: Acceleration/deceleration time constant reset (RT2RST:YD0E)", the acceleration/
deceleration time constant is switched to the maximum value of switching time constant "tmax". (Refer to "Relation between
the estimated inertia ratio and the optimum time constant")
This signal is available only at the rising edge.
If the time constant cannot be changed at the rising edge of this signal, this function retains the switch request of that time
internally, and then the time constant is switched to the maximum value of switching time constant at the available timing to
switch.
When this signal is OFF, acceleration/deceleration time constant is not switched.
Command
speed
Speed waveform
Derived optimum
time constant
PLC output signal
[RT2 time constant reset]

14.30.5 Precautions

(1) This function is applied only to servo axes.
(2) This function is not applied during soft acceleration/deceleration (when soft acceleration/deceleration is selected by
"#2003 smgst" (acceleration and deceleration modes).
(3) This function is invalid during control axis superimposition.
(4) While the "machining condition selection" function is in use, the acceleration/deceleration time constant switch is not exe-
cuted by this function.
(5) While "Real-time tuning 1" is invalid, the acceleration/deceleration time constant switch is not executed by this function.
IB-1501668-B
G0
G0
782
G0
Rising edge enabled
Switch time constant
Time
Time
Time