Hitachi HIDIC MICRO-EH Applications Manual page 193

Item number FUN instructions-16
Ladder format
FUN 151 (s)
Instruction format
FUN 151 (s)
Usable I/O
s Pulse output No.
Total No. of output
s+1
pulses
Maximum frequency
s+2
(Hz)
s+3 Initial frequency (Hz)
Acceleration/deceleration
s+4
time (ms)
Function
15 8 7
Pulse output No.
s
Total No. of output pulses N
s+1
Maximum frequency F (Hz)
s+2
Initial frequency F
s+3
Acceleration/deceleration time T (ms)
s+4
This instruction outputs pulses with the acceleration/deceleration function.
It outputs pulses from the pulse output terminal set with the pulse output number s until the total number of output pulses set
with s+1 is reached.
Since the output of pulses starts from the one having the frequency set with s+3, set the parameters so that the stepping motor
and other devices will not become out of tune.
Acceleration is performed at the acceleration time set with s+4 in 10 steps until the maximum frequency set with s+2 is reached.
Deceleration is performed at the deceleration time set with s+4 until the total number of output pulses set with s+1 is reached.
The ratio of frequency change for the deceleration is the same as for the acceleration.
Pulse frequency (Hz)
F:S+2
(F-F ) / 10
0
1
F :S+3
0
0
Name
Condition code
R7F4 R7F3 R7F2
DER ERR SD
↕
Number of steps
Condition
Bit
TD, SS,
R, WDT, MS,
L, TMR, CU,
X Y M RCU, CT WX WY
0
* *
Pulse output No.:
**:
Total No. of output pulses:
Maximum frequency (Hz):
(Hz) Initial frequency (Hz):
0
Acceleration/deceleration time (ms):
T / 10 9
8
7
6
5
4
3
2
Acceleration time
T:S+4
5-143
Chapter 5 Instruction Specifications
Pulse output with acceleration/deceleration
Processing time (
R7F1 R7F0
Average Maximum
V C
919
Steps
Word Double word
WR, DR,
WM TC DX DY DM
H01 to H04
Invalid area
H0000 to HFFFF (0 to 65535)
HA to H1388 (10 to 5000)
HA to H1388 (10 to 5000)
H0000 to HFFFF (0 to 65535)
1
2
3
4
5
6
7
Deceleration time
T:S+4
µ Remark
s)

Other
8
9
10
Time (sec)