9
english
1. Description
•
6-digit adding/subtracting counter with one preset
•
Very bright 8mm high LED display
•
Counting and preset range from –199999 to 999999.
Overshoots and undershoots up to one decade
without loss of pulses. In this case, the display
blinks at a 1 Hz frequency.
•
Indication of the active output and display of the
preset by means of LED’s
•
Programmable as a pulse counter, a frequency
meter/speed indicator or a time counter/operating
time counter
•
Relay or optocoupler output
•
Programming of the functions and of the operating
parameters by means of the push buttons. Operator
guidance by the display while programming
•
Can be programmed:
Operating mode (output signal at 0 or at the preset
value, with or without automatic repetition)
Reset by means of push-button or Reset input
Polarity of the inputs (npn or pnp)
Input mode and scale factor
Decimal point
Output signal in the shape of a positive or negative,
timed or continuous signal
Frequency meter/speed indicator display in 1/s or 1/
min
Time counter/operating time counter resolution in s,
min, h or h:min:s, 1, 0.1, 0.01 or 0.001
Start and stop with the time counter/operating time
counter
•
Supply voltage
90..250 VAC
10..30 VDC
•
Optional serial interface
RS232 or
RS422 or
RS485
2. Inputs
2.1 INP A, INP B
Counting inputs. Their function depends on the selected
input mode. The maximum counting frequency of 20 kHz
can be reduced to 30 Hz by programming.
2.2 GATE
Static gate input. Function depending on the
programmed operating mode.
Pulse counter mode:
No counting if the input is ON.
Time counter mode:
Counting programmable for input ON (gate.lo) or OFF
(gate.hi). The decimal point of the lowest decade blinks
to indicate that the counting is running.
2.3 RESET
Dynamic reset input. Resets the counter to zero when
counting up, and sets it to the preselected value when
counting down. The reset input can be inhibited in the
Setup.
2.4 KEY
Static key locking input. The presets cannot be modified
as long as this input is ON. It is however still possible
to switch the display between the counting value and
the presets.
3. Output
Potential-free change-over relay or optocoupler with
open emitter and collector.
Active output
The active output is indicated by a status LED. The
output can be reversed in case of safety circuits, i. e.
voltage to the relay coils is cut off or the optocoupler
block when the preset values are reached.
Caution:
In all modes with automatic repetition (AddAr, SubAr)
the duration of the pulse is to be programmed for the
timed signal of the output, otherwise this signal will
have no defined duration.
4. Setting of the operating parameters
a. Press push-button ”
P
” and apply power to the
device.
b. The display shows the message:
c. When the push-button is released, the title of the
menu and the current values of its parameters are
displayed in one-second periods. Press the “
ç
” key
to interrupt the scrolling and display only the current
parameters.
d. Press the “
é
” key to jump to the following value of
the parameter currently being set.
e. Press the ”
P
” key to accept the value of the
parameter currently being and switch over to the
following menu item.
f.
The last parameter of the setting menu, ”EndPro”
allows, selecting ”YES”, to leave the programming
menu and to take over (to save) the new values. If
”NO” is selected, the programming routine starts
again from the beginning, keeping the last input
values. They can then be checked and modified
again.
g. For the setting of the numerical values, like for
instance the scale factor, see also
6. Setting of the
preset.
Operating instructions
Electronic preset counter
Type series 716
