Rievtech ELC Series - Page 103

EN
Programmable Relay ● User Manual for ELC, EXM and PR Series 103 2020 v6.0 ● © Rievtech Co.,
Ltd. ● www.rievtech.com
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)
Stopwatch (Ta)
The value of “T
H
” and ”T
L
” can be set/modified in
parameter mode. For information about how to modify,
refer to chapter 5.2.2, please.
Timing diagram
T
L
= 0; N = 1
With the change at input Trg to 1, the time T
L
(time low)
is triggered. After the time T
L
has expired, output Q is set
to 1 for the duration of the time T
H
(time high).
If input Trg is retriggered prior to the expiration of the
preset time (T
L
+ T
H
), the time Ta is reset, and the
pulse/pause period is restarted.
If retentivity is not set, output Q and the time are reset
after a power failure.
Asynchronous Pulse Generator
Description of function
The pulse shape at the output can be modified
via a configurable pulse/pause ratio.
Connection
Description
Input En ( )
You enable/disable the
asynchronous pulse generator with
the signal at input En.
Input Inv
The Inv input can be used to invert
the output signal of the active
asynchronous pulse generator.
Parameter
T
L
, T
H
: You can customize the pulse
(T
L
)/ pause (T
H
) ratio.
Retentivity set (on) = the status is
retentive in memory.
Output Q
Q is toggled on and off cyclically
with the pulse times T
H
and T
L
.
Parameter
The pulse width T
H
and the inter-pulse width T
L
can be
provided by the actual value of another already-
programmed function: