DESIGNER’S HANDBOOK 4189350049C EN Page 116 of 206
The dimmer error level: this is the dimmer level used if the dimmer voltage drops more than 2% outside the
defined dimmer low level. When this level is set to 50 %, the backlight will shift to 50 % in a fault situation,
Raw data filter: is an averaging filter that can be adjusted to reduce noise and fast fluctuations on the input
voltage. This filter is useful to reduce flicker when a PWM signal with external LP filter is used as analogue dimmer
input. The filter range is 0 to 100, and the normal default is 10. Increase this value to reduce flickering.
Update rate on XDi-net: is the repetition rate of dimmer messages being sent on XDi-net (CAN).
The AX1 analogue module does not have the setting “On change”, and therefore only one XDi with analogue input
can control a dimmer group.
Use CAN interface: See digital dimmer setup above
10.1.4.5 XDi-net dimming (or DAM-MPDO)
This source type does not need a setup menu.
Dimmer values are received and routed directly into the object index table as defined in the table below, where the
actual dimmer value is located in sub-index 0x02 as an unsigned 8 bit parameter (U8).
The data range is 0 to 100 representing the dimmer level of 0-100 % (100 % being max. backlight).
*) When XDi is in Local group the dimmer data is not sent on XDi-net, but XDi will be able to receive data via CAN
from an external CAN source.
How to send XDi-net data (or DAM-MPDO data) is described in details in the “XDi-net/CANopen reference
manual”.
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