Inovance H3U Series - Output Frequency-Time Relationship and Acceleration;Deceleration Process

378
6
6 Positioning and Interpolation6.1.3 Output Frequency-Time Relationship and Acceleration/Deceleration Process
Y0 Y1 Y2 Y3 Y4 Attribute
D8354 D8374 D8394 D8414 D8434 Reserved
D8355 D8375 D8395 D8415 D8435 Reserved
D8356 D8376 D8396 D8416 D8436 Reserved
D8357 D8377 D8397 D8417 D8437 Reserved
D8358 D8378 D8398 D8418 D8438 Reserved
D8359 D8379 D8399 D8419 D8439 Reserved
Y0 Y1 Y2 Y3 Y4 Attribute
D8500/D8501 Maximum speed (Hz) (32-bit)
D8502 Base speed (Hz) (16-bit)
D8503 Acceleration/deceleration time (ms) (16-bit)
6.1.3 Output Frequency-Time Relationship and Acceleration/Deceleration Process
The following gure describes the relationship between the output frequency and the time.
Tacc Tdec
Vmin
Vset
Vbias
Time
Frequency
Vmax
Vbias
Vset indicates the pulse output frequency set manually using an instruction.
Vbias indicates the base output frequency set manually using a special register.
Vmax indicates the maximum frequency generally set through a special register.
Vmin indicates the calculated minimum frequency.
Tacc indicates the acceleration time.
Tdec indicates the deceleration time. Tdec equals Tacc by default. If the special function ag is set, the
acceleration/deceleration time can be set separately for each axis.
Generally, Vmax is equal to or greater than Vset, and Vbias is equal to or greater than Vmin; otherwise,
the frequency is adjusted. Vmax and Vmin specify the upper and lower limits of the pulse output frequency
respectively.
The actual minimum output frequency Vmin is calculated according to the following formula.