Velleman projects K8038 Assembly instructions User Manual
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2. Mount the jumpers on JP1,2,3 or leave them out according to the functions that have to be available.
JP1 – Memory function:
The last used brightness setting is memorized if this function is activated.
Removed: Memory function is deactivated.
or
Installed: Memory function is activated.
JP2 – Phase control:
Phase control is needed to control an inductive charge, such as a transformer. The phase control makes sure
the triac is activated at the right moment in case of a current lag to the tension (phase shift). The phase control
may only be disabled when a resistive charge is controlled and the lamp 'flashes' or when the K8038 should go
into an unwarranted alarm condition. The phase control must NOT be disabled when controlling an inductive
charge – this may cause serious damage to the K0838 and/or the used transformer.
Removed: Phase control is enabled. default setting for normal use)
or
Installed: Phase control is disabled.
Connection
JP1 Enable
memory
function
JP2 Disable
phase
control
JP3
Protection timers on
Fig. 2.0