9
-
31
(e) Timer setting value and timer limit setting
Set the timer to meet the following condition:
If the values are set to become "Timer setting value < Scan time + Timer Limit Setting", the coil and the contact
might be simultaneously turned on depending on the timing on which the coil is turned on.
If the setting does not meet the above condition, make the value of the timer limit setting smaller to meet the
condition.
Make the value of the timer limit setting smaller by changing from low speed timer to high speed
timer. (Assume that the scan time is 20ms.)
Figure 9.27 Relationship between timer setting value and timer limit setting
Figure 9.28 Making the value of the timer limit setting smaller
K2
T0
Timer setting value
Scan time
Timer limit setting
(SD526,SD527)
Example
K1
Before change (low-speed timer)
After change (high-speed timer)
Timer setting value
(100ms 1=100ms)
Scan time
(20ms)
Timer limit setting
(100ms)
Timer setting value
(10.00ms 10=100ms)
Scan time
(20ms)
Timer limit setting
(10ms)
