Velleman К8064 Manuel d'utilisateur télécharger pdf (Page 12)

LED indications in case of error:

When the CPU detects an error, LD1 (green) lights up continuously, whereas LD2 (red) repeatedly emits a

series of flashes.

We advise you to briefly interrupt the supply voltage and evaluate the situation.

The “MON” connection on the PCB is only used by our technical department for purposes of repair and diagnosis.

Flashes

LD2

Error Possible cause

1 Time out in the positive alternation of

the mains voltage

error in voltage zero-crossing circuit (T1, ...)

2 Time out in the negative alternation

of the mains voltage

error in voltage zero-crossing circuit (T1, ...)

3 Triac triggering time out - Triac defective ?

- Light source defective ?

- T2 defective ?

- Load doesn't conform to specifications ?

4 Phase shift is too great - Load behaves too inductively ?

- No load connected ?

- No load on transformer (because of defective lamp ?)

- Load not conform ?

Test & adjustment procedure

1 2 ... 7 8 9 10 11 12 13 14 15 16

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Velleman К8064 Manuel d'utilisateur Page 12