User manual for - TIMER SLC-94
6.2.
CONTROL OF RELAY OUTPUTS
Controlling of external devices up on
main timer
and totalizer values is possible thanks
to build in relay outputs. The operation principle of relay output is defined by parameters:
“
SEtP
”, “
modE
”, “
Src
”.
Parameter “
SEtP
”
defines the
threshold
of an relay. Setting of threshold is made by
entering values of parameters “
Hr
”, “
min
”, “
SEc
”, “
mSEc
”. Note, that the sum of all of these
parameters decides what is exact threshold value.
Example 1:
Setting “
Hr
”=2, “
min
”=30, “
SEc
”=40, “
mSEc
”=567 causes that relay will be activated after 2
hours , 30 minutes, 40 seconds and 567 milliseconds.
Example 2:
Setting “
Hr
” =1, “
min
” = 65 , “
SEc
”=0, “
mSEc
”=0 causes that relay will be activated after 2
hours and 5 minutes .
While controlling process relay output can change its state to
active
only after the
counter reach its threshold value. Active state of the relay (closed or opened) is defined by
parameter “
modE
”. The selection of controlling counter (main timer or totalizer) is realised by
parameter
“Src
”.
The action related to
threshold value
is not immediate. Maximum delay
( activation or deactivation while controlled by main timer ) is less than 12 ms for OC
outputs and up to 20ms for electromechanical relays.
If
“Src”
parameter equals
“total”
then “
mSEc
” parameter in relay threshold edition menu
(“
SEtP1
”
i
“
SetP2
”) is non active and equals zero.
All parameters connected with relay outputs are described in paragraph
”rEL1”
and
”rEL2” menu
.
7.
DEVICE PROGRAMMING
The device menu allow user to set all parameters connected to operation of counting
input, reset source, displaying format, communication via RS-485 and access settings. The
meaning of the particular parameters is described in paragraph
MENU DESCRIPTION
.
7.1.
PROGRAMMING MENU
To enter main menu (being in the measurement mode) operator must to press and hold
at least 2 sec.
[ESC/MENU]
button.
16
i
