MN05401013E
1
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Instructions for Use
Electronic Presetting Counter
E5148C1400
1. Inputs
1.1 Reset Input*
This optocoupler input is wired in parallel with the red
SET key and it sets the counter to zero in the up-mode
(incrementing), to the presetting in the down-mode
(decrementing).
1.2 Count Input*
Optocoupler input damped to 25 Hz for DC or AC voltage.
* Note:
The reset input (pin 6) and the count input (pin 5) are
op tocoupler inputs with a common connection (pin 7)
and must be actuated with the same polarity.
1.3 Keyboard Interlock Input
If this input (pin 2) is connected to 3V DC (pin 1), the
front keys are locked (including the SET key).
2. Output
Relay with potential-free contact programmable as NO or
NC contact (NO = normally open, NC = normally closed).
In the up-mode the relay is active at ≥ the presetting, in
the down-mode at ≤ zero. With automatic repetition the
output signal is a timed signal programmable between
100 msec. and 500 msec. in steps of 100 msec. When
the relay is active, a colon will appear at the bottom left of
the display. The switching frequency of the output relay
must not be higher than 4 Hz.
3. Setting the operating mode and
operational parameters
3.1 When installing the unit for the first time or after a
battery change lasting more than 7 minutes, the counter
is set automatically to the programming mode and the 5
parameters must be selected (see 4.2). The parameters
may also be changed during the operation run.
However, this can be achieved only in the programming
mode. In order to reach this mode the following keys
must be depressed simultaneo usly (for safety reasons):
RESET key, the keys of de cade 5 and 6. On the lower
line of the display the message “INIT” appears together
with a down-coun ter subtracting from 5 to 0 in steps of
seconds. If wi thin this period the depressed keys are
released, the previous operating mode will become
active again. If the keys are released after reaching
zero, the first parameter is activated and displayed.
3.2 Setting the Operational Parameters
The key of the first decade allows the user to select the
requested function within the parameters (e.g. add/
subtract) and the 6th decade-key selects the next
parameter. After the last parameter “dP”, the program
jumps to the beginning. To leave this program rou tine
the user must step through all parameters (from the
beginning to the end) with NO CHANGES at all.
Note:
Whenever this routine is selected the program will jump
to the beginning, the previous parameters will get lost
and the count as well as the preset values are zeroed.
4. Operating the counter
4.1 Setting or resetting
Press the red SET button or apply a pulse to the reset
input to set the counter to zero in the accumulating
mode to presetting in the subtracting mode.
4.2 Preset Mode
Presetting is indicated on the lower row of digits. To set
it, use the 6 presetting buttons assigned to each
decade. The set value will be accepted with the next set
or reset operation.
4.3 Overflow and underflow
In the accumulating mode the overflow is 999999 to 0;
in the subtracting mode it is 0 to 999999. The output
signal remains unaffected.
4.4 Lo-Bat indicator
When the battery charge is too low, “Lo-bat” appears in
the lower display. This flashes in a two-second rhythm.
When “Lo-bat” is indicated, the batteries should be ex -
changed as soon as possible.
4.5 Changing the batteries
Push the battery cover back and remove the batteries,
making certain that polarity is correct (observe “–”
terminal on PCB).
Note:
Changing the batteries should not take longer than 2
min., otherwise the count and preset values as well as
the parameters will get lost and therefore must be set
again (see 3.).
5. Terminal block
Terminal assignment
Terminal No.
7
common AC/DC-input for terminals
6 and 5
6
AC/DC optocoupler reset-input
5
AC/DC optocoupler count-input
4
relay contact
3
relay contact
2
keyboard interlock-input
1
+3V DC for terminal 2
MN05401013E:MN05401013E 2/9/07 11:58 AM Page 1
