Velleman VMB4PD - Manual (Page 3)

VMB4PD 3
Power Supply:
Required power voltage: 12 to 18VDC.
Consumption:
backlight off: 13mA LEDs off / 15mA LEDs on
backlight lowly dimmed: 14mA LEDs off / 16mA LEDs on
backlight highly dimmed: 18mA LEDs off / 19mA LEDs on
backlight max. intensity: 26mA LEDs off / 27mA LEDs on
Max. consumption (all LEDs activated and backlight max. intensity): 27mA.
Power supply LED indication.
9V-battery connection (clock back-up power).
Back-up battery power consumption: 15mA.
Battery not included.
Dimensions:
Push button module (L x W x H): 66 x 44 x 30 mm
Push button module with frame (L x W x H): 118 x 80 x 30 mm
Frame not included.
VELBUS:
2-wire communication for VELBUS data and 2 wires for power
Data transfer: 16.6kbit/s
Serial data protocol: CAN (Controller Area Network)
Short-circuit proof (towards negative or positive of power)
Bus error indication: 2 x short flash of the indication LED
Self restoring after 25 seconds in case of a bus error
Possibility to assign a name (max. 15 characters) and a reaction time (65ms, 1s, 2s of 3s) which can be
saved in the non-volatile memory.
The command labels are displayed on the LCD. These labels consist of 2 lines of 16 characters each and
will also be saved in the non-volatile memory.
When pressing, maintaining pressed and releasing a push button, an instruction is being sent.
Instructions will be accepted when setting the backlight, switching the indication LEDs on and off, slow,
fast or very fast blinking of the indication LEDs, calling up the module type, the push button names and
when reading from or writing to the non-volatile memory.
The module can respond with the module type, the push button name or the contents from the memory.