Elektronik Sachse ZDG 3.23, Installation Manual

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1
ELEKTRONIK
SACHSE
Elektronik Sachse GmbH & Co. KG
Installation Manual
Digital Ignition ZDG 3.23 (Guzzi V7 /
Marelli Distributor)
Item: Z67
Contents
1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6 General Notes / Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 Function
The digital ignition kit ZDG3 replaces original electronic ignition units as well as old points
including the weights advancer or manual advance wires.
Function: Starting from TDC the momentary peripheral speed is determined and by
this means, the time up to ignition is calculated per crank turn. Because the peripheral
speed varies substantially during acceleration, this long measurement is selected in order to
determine a relatively exact measurement.
The computation of ignition timing is divided into 4 ranges:
Range Function
0 – 400 rpm Starting range, ignition always at TDC
400 – 1000 rpm Idling range, 2° to 8° advanced ignition, depending on curve selection
1000 – 6200 rpm Partial load range, the spark advance adjustment occurs here
6200 – 12000 rpm Maximum load range, constant maximum advanced ignition, depend-
ing on curve selection