Specifications

10. Additional Special Devices and Instructions
10-3
Hz
5K
4K
3K
2K
1K
ms
t1 t2 t3 t4
Due to the above conditions, we can know the accel/decel steps is
(5K – 1K) / 1K = 4 and pulse output numbers of each step is 40 / 4 = 10.
Therefore, from the above timing chart, we can obtain that t1 = (1 / 1K)
x 10 = 10ms, t2 = (1 / 2K) x 10 = 5ms, t3 = (1 / 3K) x 10 = 3.33ms and
t4 = (1 / 4K) x 10 = 2.5ms.
 Program example: REV/FWD operating acceleration /deceleration of
step motor control
K500MOV
M1002
D1104
K1000MOV D500
K100MOV D501
MOV D502
K80000DMOV D503
K10000DMOV D505
K10000
1KHz starting frequency
100Hz gap frequency
10KHz target frequency
80000 numbers of pulse output
10000 numbers of accel/decel interval pulse
M1115SET
use D500 to D506 as parameter address
Ϩʳ When PLC is running, each parameter setting is stored in the register
assigned by D1104.
Ϩʳ When M1115 is in the status of acceleration/deceleration, pulse output
will start.
Ϩʳ M1116 is ON during the process of acceleration, M1117 is ON when
desired speed attained and M1118 is ON during the process of
deceleration. After the program is completed, M1119 is ON.
Ϩʳ M1115 will not return automatically. Users have to conclude the
condition during that operating period and reset it by self-decision.
Ϩʳ Actual pulse output curve is shown as follow:
10K
1K
10000
90000 100000
Freq.(Hz)
pulse numbers