User manual
   ADT-HC4500 CNC Flame/Plasma Controller 
17
2.  [AddSpeed]-- Acceleration: It is an average increment of increasing the processing speed from start-up 
speed to the highest speed. For example, if the start-up speed is 300, acceleration is 100, and highest 
speed is 1000, then, the speed is increased to 300, 400, 500…1000 at 100 intervals; if the acceleration is 
50, then, the speed is increased by 50 each time. 
The acceleration is determined by the 
Precision (In main menu, press [F4] (Para) → [F5] (Prec). 
Precision: refer to the distance the corresponding machine moves when the control system gives an 
impulse. 
The following list shows the reference value of impulse equivalent and the acceleration; the actual data 
are subject to the on-scene cutting effect. 
Precision Addeleration (mm/minute) 
0.001000-0.002000 10 
0.002000-0.003000 20 
0.003000-0.004000 30 
0.004000-0.005000 40 
0.005000-0.006000 50 
0.006000-0.007000 60 
0.007000-0.008000 70 
0.008000-0.009000 80 
0.009000-0.010000 90 
0.010000-0.011000 100 
0.011000-0.012000 110 
0.012000-0.013000 120 
         Table 2.8.2 
9. Adjustment of preheating time in flame cutting [Adju] 
In main menu, press [F4] (Para) → [F4] (Ctrl) to set the “Preheat Delay” in the second row as the 
required time. 










