Velleman VM138 Manuel d'utilisateur télécharger pdf (Page 8)

LED LD2 “Error” Functions:

LD2, the “Error” LED has following functions:

 Flashes once at turn-ON of the module. Allows you to check if the CPU is functioning.

 Flashes slowly when there is no DMX signal reception, no connection between the DMX controller and

the module, a DMX signal error or no signal compatibility.

 Flashes rapidly when the DMX address is positioned on 0 and/or the manual override function has been

activated.

JP1: DMX Mode:

 In normal mode (JP1 not mounted) the module will react every time to the DMX value.

 When the error correction mode is activated (JP1 mounted), you will obtain a higher degree of stability

which is useful when using some brands of DMX devices; This mode will check the DMX value twice be-

fore modifying the relay status. The drawback is that the relay will react slower when modifying the DMX

value rapidly.

JP2: Relay HOLD Status:

 Mounted : the relay will deactivate when the DMX connection is disrupted.

 Not mounted : the relay will keep its status when the DMX connection is disrupted.

DMX channel

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Velleman VM138 Manuel d'utilisateur Page 8