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11-1
Section
,
11-1 Speeds
There may be a difference between set values and actual speeds. The reason
for that is as follows:
Settings between 122 and 250,000 pps:
where,
INT:
Nearest integer
INT(8,000,000/set value): Divider ratio
pps:
pulses per second
Actual speed (pps) =
8,000,000
INT(8,000,000/set value)
Pulse output (actual speed)
8 MHz
Counter LSI
Divider
The slight difference occurs because a 8-MHz source clock is divided by the in-
teger divider ratio.
Example Values:
Set Value (pps)
Actual Speed (pps)
250,000
250,000.00
180,000
181818.18
140,000
140,350.87
95,000
95,238.09
3,500
3,501.09
122
122.00
Settings between 1 and 121 pps:
Actual speed (pps) =
31,250.0
INT(31,250.0/set value)
31,250.0 Hz
Pulse output (actual speed)
Counter LSI
Divider
A 31,250.0 Hz source clock is divided by the integer divider ratio.
Example Values:
Set Value (pps)
Actual Speed (pps)
121
121.12
60
60.09
Содержание SYSMAC C500-NC113
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