Velleman VM107 Mode D'emploi page 7

Error code
Err. 2 Error in the keyboard section.
Err. 3 The switches are in the wrong position. 'DIP SWITCH'
Err. 4 Input A and B are at the same time active
Err. 5 Input A is active during self-test or input A is possibly malfunctioning.
Err. 6 Input B is active during self-test or input B is possibly malfunctioning.
Counting pulses can be applied to the unit in two different ways :
1. + 3V to 12V pulses with respect to ground.
2. Use the + 5V connection for push buttons or relay contacts when there is no power supply from an external source.
Press the "UP" button to increase the actual value with one.
Press the "DOWN" button to decreases the actual value with one.
Setting the Pre-set value:
It is possible to set a number which will continuously be compared with the content of the counter. If both are equal, then the
output (Equal OUT) is activated.
Press Set/Run (set briefly appears).
Press Up or Down to set the value.
Press Set/Run to store the value (Run appears).
Description
Press "Reset" button briefly to reset the readout. "0000".
Operation
The errors 5 & 6 can appears
when during the self-test
counter pulses are received,
this can be reset by pressing
SW4 briefly.
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