This procedure goes on until a RESET signal is transmitted or the
set time period has expired.
STOP
0 .1 .2 .3 .4 .5 .6 .7 .0
START
COUNT
RESET
CNT EN
RESET
STOPSTART
E = 2 - BISTABLE RESET-START/STOP:
This operating mode is very similar to that of the front U key and
dipends also from "t" parameter which has 2 possible functioning
modes:
E = 2 , t = 1 - RESET-START/STOP
:
The first impulse on CNT EN input reset and start the timer, at the
second impulse, if it is given before the end of the time, the timer
stops (if the output was actived now will be disabled), otherwise, if it
is given after the end of the time, the second pulse actives a new
counting cycle.
COUNT
START
RESET
STOP STOP
RESET
RESET
START
0.1.2.3.4 0.1.2.3.0
CNT EN
RESET
E = 2, t = 2 - RESET/START/STOP:
At the first pulse on CNT EN input the timer is resetted, at the
second the counting starts, at the third pulse the counting is
stopping, and so on.
0.1.2.3
COUNT
RESET START
RESET
CNT EN
0
RESETSTOP START STOP
RESET
0.1.2.3.4.00
E = 3 - MONOSTABLE START/STOP:
After being reset by means of the RESET input, the timer starts
when the CNT EN contact is closed and stops when the contact is
opened.
At this point, if the contact is closed again, the timer will re-start
from the current value, and so on until a RESET signal is
transmitted or the set time period has expired.
In this functioning mode the U frontal key works only as reset.
CNT EN
RESET
COUNT
STARTSTART STOP
0.1.2.3
STOP RESET
.4.5.6.7 0
E = 4 - MONOSTABLE RESET-START/STOP:
By closing the CNT EN input and keeping it closed, the timer is
resetted and starts the counting, at the opening of the CNT EN
input the counting is stopped.
This operating mode is recommended when the user wants to
control the timer using voltage signals. In fact, with an appropriate
interface (eg. an external relay) the timer is reset and starts
counting when voltage is supplied, and stops when voltage is cut
off (just like a conventional timer).
In this functioning mode the U frontal key works only as reset.
CNT EN
START
RESET
0.1.2.3
RESET
START
COUNT
STOP
RESET
00.1.2.3
STOP RESET
5 - PROGRAMMABLE PARAMETERS
5.1 - PARAMETERS TABLE
10 - 1 - 2 - 3 U key operating mode
t
10
11 - 2 - 3 - 4CNT EN input
operating mode
E
9
11 - 2 - 3 Back-up mode
b
8
11 - 2 Counting mode
C
7
99_ _00_ _ ... 99_ _Maximum set time “t2”
H2
6
99_ _00_ _ ... 99_ _Maximum set time “t1”
H1
5
11 - 2 - 3 - 4Time Range “t2”
S2
4
11 - 2 - 3 - 4 Time Range “t1”
S1
3
00 - 1 - 2 - 3 - 4 OUT 2 0perating
mode
F2
2
11 - 2 - 3 - 4 - 5OUT 1 operating
mode
F1
1
NotesDef.RangeDescriptionPar.
5.2 – PARAMETERS DESCRIPTION
F 1 - OUT 1 OPERATING MODE: Permits the user to select the
operating mode of the output OUT 1 as regards counting.
The 5 mode are:
1 = Delayed
2 = Feedthrough
3 = Asymmetrical Oscillator Start On
4 = Asymmetrical Oscillator Start Off
5 = One cycle Asymmetrical Oscillator Start Off
F 2 - OUT 2 OPERATING MODE: Permits the user to select the
operating mode of the output OUT 2 as regards counting.
The 5 mode are:
0 = Ouput disable
1 = Operating like OUT1
2 = On during counting
3 = Same function of OUT1 with time t3 absolute
4 = Same function of OUT1 with time t3 dependent from time t1
S1 - TIME RANGE t1 (and t3) : This parameter allows the user to
select the full range of the time t1 (and t3 if activate) according to
the following options:
1 = hrs (9999)
2 = hrs - min. (99 hrs 59 min.)
3 = min. - sec. (99 min. 59 sec. )
4 = sec. - cents (99 sec. 99 cents) .
S2 -TIME RANGE t2: This parameter only involves the operating
modes "F1"= 3 and 4, and is used to select the full range of the t2
time period. The options are the same as for the "S1" parameter.
H1 - HIGH SET POINT TIME t1 : This parameter allows the user to
program the 2 most significative figures of the Higher value
programmable as Set Point “t1”
H2 - HIGH SET POINT TIME t2: Similar to “H1” but referred to the
set “t2”.
C - COUNTING MODE. Permits the user to choose the UP or
DOWN mode, ie. whether the display must show the time which
has passed or the remaining time. The options are:
1 = UP mode
2 = DOWN mode
b - BACK-UP MODE. This parameter determines the instrument
reaction in the case of power failure. The options are:
1 = Timer stops and memorized the counting current value
2 = Timer goes on counting (only with external battery connected )
3 = Timer reset the counting
TECNOLOGIC spa - TT 34 - OPERATING INSTRUCTIONS - Vr. 01 - ISTR 06086 - PAG. 5
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