Simex SLN-94, User Manual

Page: 22 / 44

User manual - COUNTER SLN-94
• If parameter “tr1” or “tr2” is set to value greater than “0” then related relay stay inactive
during time defined by this parameter (Figure 6.4a, d, e), but no longer than to next manual
initialisation of counting cycle (points C, F in Figure 6.4a, d, e). In case when AUTORESET
function is active, particular relay stay inactive during time defined by parameters “tr1” or
“tr2” (Figure 6.5a, d, e) regardless of automatic initialisation of new cycle.
If AUTORESET is active, then it is possible to add additional delay of automatic
initialisation of next cycle (Figure 6.5a) by proper setting of parameter “dLy” .
When parameters “dLy” = ”0” and “tr1” = ”0” and AUTORESET function is active,
relay
R1
will not change its state to
inactive
. If in addition, parameter “
tr2”
=
”0”
and
time between exceeding of relays
R2
and
R1
thresholds is shorter than relay reaction
delay (t
Z
), then R2 will not change its state to inactive .
Parameters “ mr1 ”, “ mr2 ” can be set to value “mb” , allow controlling of the relays via serial
interface. In this case states of relays are completely independent on counter state and its
other settings. Change of their state is realised exclusively by writing of their related registers
via RS-485 interface (see
LIST OF REGISTERS ). If parameter “
mr1
” or “
mr2
” is set to ” on ”
or ” oFF ” , writing of those registers has no effect, and reading gets current state of the
registers.
If mode “
mb
” is active, then after power up particular relay is
open.
In other modes
(“
on
” or “
oFF
”) relay will be in its
inactive
state.
While power down device is storing its counter state, and restores it after power up. The state
of cycle realisation is not stored, and after power up it must be initialised by user.
All parameters corresponding to relay outputs are described in details in chapter
MENU
DESCRIPTION .
6.4.2. Driving of the relays during downcounting
The mode of relays operation while downcounting (parameter
“dir”
=
”dn”
), with
example settings is showed in figure 6.6.
The principle of relays driving is the same as for upcounting, but different are starting
value (while initialisation) and relays thresholds . Starting value for counting cycle is the value
of parameter ” Pr1 ” (Figure 6.6a), equal to adjuster (left, green LED display). The threshold of
R1
relay is „
000
”, and the threshold of relay
R2
is ”
Pr2
” (points: A, B, D in Figure 6.6).
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