Rievtech ELC Series - Page 122

EN
Programmable Relay ● User Manual for ELC, EXM and PR Series 122 2020 v6.0 ● © Rievtech Co.,
Ltd. ● www.rievtech.com
Description of function
The output is switched on and off, depending on two
configurable frequencies.
Connection
Description
Input Fre ( )
The function counts 0 to 1
transitions at input Fre.1 to 0
transitions are not counted.
Use Inputs I5, I6 (14kHz) I7, I8
(60kHz) for ELC-12 CPU, Inputs I9,
IA (14kHz) IB, IC (60kHz) for PR-18,
ELC-22 and PR-24 CPU
Any other input or circuit element
can be used for low frequencies
(typical 4 Hz).
Parameter
On: On threshold
The range of values: 0000...9999
Off: Off threshold
The range of values: 0000...9999
G_T: Time interval or gate time
during which the input pulses are
measured.
The range of values: 00:05 s...99:99
s
Output Q
Q is set or reset according to the
threshold values.
Parameter
The gate time G_T can be provided by the actual value of
another already-programmed function:
Analog comparator (Ax – Ay) Analog threshold trigger
(Ax)
Analog amplifier (Ax) Analog multiplexer (AQ)
Analog ramp (AQ) Mathematic instruction
(AQ)
PI controller (AQ) Up/down counter (Cnt)
Analog filter (AQ) Average value (AQ)
Max/Min (AQ) On-delay (Ta)
Off-delay (Ta) On-/off-delay (Ta)
Retentive on-delay (Ta) Wiping relay(pulse output)
(Ta)
Edge triggered wiping relay (Ta)
Asynchronous pulse generator (Ta)
Stairway light switch (Ta) Multiple function switch
(Ta)