Electronically-controlled ignition modules
The CDIM ignition modules are controlled by means of a microcontroller for evaluating the coil signals, for an individual calculation of the ignition timing and for the corresponding activation of the ignition spark. A variety of additional functions can be implemented in order to adjust the running characteristics of the engine and its convenience for maximum customer satisfaction.
- Recoilless ignition system based on the CDI principle
- Featuring a microcontroller-based control unit
- Freely programmable idle speed and overspeed control
- Several freely programmable adjustment curves or maps of the ignition characteristics
- Adjustment range 0...40°; speed range up to 18,000 1/min
- Deactivation via keying function possible
Electronic Ignition Module CDI
Used in chainsaws, lawn mowers, stationary engines, spray units, small-sized engines
- Electronic ignition module in accordance with the CDI principle (energy storage within the electric field)
- 2 or 3-limbed iron core (U- or E-core)
- Internally or externally-mounted system
- High-power switch: thyristor
- Path-controlled triggering
(position-controlled ignition timing) - Available with pole wheel diameters
from 90 mm ... 167 mm - Speed range up to 13.000 1/min according to type
Digital Ignition Module CDIM
Used in engines for tight emission regulations, catalyst motors, lawn mowers and chainsaws for professional use, generators, cut-off machines, brush cutters, tampers
- Microcontroller-operated ignition system in accordance with the condenser discharge ignition principle
- Control unit: microcontroller
- Path and time-controlled triggering according to speed/operational mode
- Non-backstroke start-up even with non-uniform rotation
- Individually-programmable idle run and top speed regulation
- Several individually-programmable ignition adjustment curves or ignition characteristic diagrams
- Spark suppression when in reverse operation
- Individually-programmable control output according to speed, time and operational mode
- Adjustment range O...40°; speed range up to 18 000 1/min
- Switch-off via touch button possible
Digital Ignition Module with easy start function - CDIM with DLS
Features and application identical to CDIM, plus the following:
- Low start-up speed < 200rpm
- Ignition spark even when passing the first top dead centre
- Easy start after engine restart
- For the start-up of the engine only a short rope stroke required (ca. 15 cm)
- Ignition module available as low-cost or high-performance versions according to spark energy

