Determining the Cycle Time
C-2
IDEC SmartRelay User’s Manual
3. Then start the program and switch IDEC SmartRelay to
parameterization mode. You can look at the parameters
for the threshold switch in parameterization mode.
4. The inverse value of fa is equal to the cycle time of
IDEC SmartRelay with the current program stored in the
memory.
1/fa = cycle time in seconds
Explanation
The clock pulse generator (T=0) changes its output signal
every time the program is executed. A level (high or low)
thus lasts exactly one cycle. A period therefore lasts 2
cycles.
The threshold switch indicates the ratio of periods per 2
seconds which results in the ratio of cycles per second.
Edge change of clock pulse generator
each time the program is executed
Cycle time
Periods
1 period = 1 pulse = 2 cycles
B01:Par
SW =1000+
SW =0000
fa =0086
fa= is the sum of the
pulses measured per
time unit G_T
Summary of Contents for SmartRelay FL1A-B10RCA
Page 1: ...IDEC SmartRelay Manual March 2001 www idec com ...
Page 16: ...Getting to Know IDEC SmartRelay 1 6 IDEC SmartRelay User s Manual ...
Page 32: ...Installing and Wiring IDEC SmartRelay 2 16 IDEC SmartRelay User s Manual ...
Page 132: ...IDEC SmartRelay Functions 4 64 IDEC SmartRelay User s Manual ...
Page 184: ...Applications 8 32 IDEC SmartRelay User s Manual ...
Page 204: ...IDEC SmartRelay Menu Structure E 2 IDEC SmartRelay User s Manual ...
Page 206: ...Type Numbers F 2 IDEC SmartRelay User s Manual ...
Page 208: ...Abbreviations G 2 IDEC SmartRelay User s Manual ...