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IDEC SmartRelay Manual
175
IDEC SmartRelay functions
4.4 Special functions list - SF
4.4.17
Fre uency trigger
Short description
The output is set and reset with two configurable fre uency trigger.
Parameter G T
The gate time G T can be provided by the actual value of another already-programmed
function. ou can use the actual values of the following functions:
Analog comparator (Page 183) (actual value Ax Ay)
Analog trigger (Page 178) (actual value Ax)
Analog amplifier (Page 191) (actual value Ax)
Analog multiplexer (Page 209) (actual value A )
Analog ramp control (Page 212) (actual value A )
Analog Math (Page 224) (actual value A )
PI controller (Page 216) (actual value A )
Up/down counter (Page 168) (actual value Cnt)
Analog filter (Page 229) (actual value A )
Average value (Page 235) (actual value A )
Max/Min (Page 231) (actual value A )
On-delay (Page 132) (current time Ta)
Off-delay (Page 136) (current time Ta)
On-/off-delay (Page 138) (current time Ta)
Symbol in
IDEC SmartRelay
iring
Description
Input Fre
The function counts the 0 to 1 transitions at input Fre.
1 to 0 transitions are not counted.
Use the following as the input:
inputs I3, I4, I5, I6 for fast counting (only FL1F-
H12RCE/B12RCE and FL1F-H12SCD): max.
5 kHz, if the fast input is directly connected to the
fre uency trigger function block
any other input or circuit component for counting
low fre uency signals (typically 4 Hz)
Parameter
On: on threshold
Range of values:
0000...9999
Off: off threshold
Range of values:
0000...9999
G T: time interval or gate time during which the input
pulses are measured
Range of values:
00:00 s...99:99 s
Output
is set and reset at the thresholds.
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