Electrical Data

The MIC100 has the following electrical characteristics.

Feature

Value

Power consumption

Max. 40 W at 24 V

Power supply

Nominal voltage: 24 V DC
Operating voltage: 16.8 V DC to 32 V DC

Required current

Max. current 2.0 A. An estimation of the power requirements can be found after this table.

Number of outputs

4, 6 or 8 outputs

Firing angle

The size of the firing angle depends on the max. overspeed. The smallest ignition angle can be calculated using the following formula:


Ignition frequency

With full energy output (all 8 ignition outputs with 130 mJ), an ignition frequency of 120 Hz as continuous load is possible. With less ignition energy or in case of a brief overload, 133 Hz is possible. The maximum output load of 18 W must not be exceeded.

2-stroke engine:

4-stroke engine:

 

Estimation of Current Requirements

These current values are based on a nominal speed of 1800 rpm and 130 mJ energy.

Outputs

Voltage

Required current

8

24 V

1.5 A

 

Electrical Data for Inputs and Outputs

The inputs and outputs of the ignition controller have the following electrical data:

Inputs and outputs

Values

Analog current input

Current range: 0 mA to 20 mA (adjustable in MICT)
Input impedance: 10 Ω || 1 µF

Binary input (Start/Stop)

Wiring

Input current: max. 20 mA
Ignition stop: 0 V to 1 V (low level)
Ignition release: 4.5 V to 32 V (high level)

Go/NoGo output

Implementation as bipolar power transistor

Maximum switching voltage: 32 V DC

Peak/steady current: max. 100 mA DC

Output power: max. 2.5 W

Internal resistance: 58 Ω to 60 Ω

Activation delay: 0.5 ms / max. 100 mA load

Deactivation delay: 0.2 ms / max. 100 mA load

If a short is found at the output, a safety circuit, which makes the output highly resistive, is found at the output, so that the current sets itself at 50 mA to 60 mA.

LED

Three LEDs are used as status indicators.

ASO output

TTL level (5 V)
max. current: ± 10 mA

Pickup input

Impedance: 10 kΩ

Power supply 8 V or 15 V (configurable in MICT)

Max. frequency for the pickup: 15 kHz

The formula for determining the frequency of the pickups can be found in the note following this table.

For a pickup output impedance of 120 Ω to 10 kΩ, the pickups connected to the MIC100 may not have a higher voltage than ±40 V and the connected power may not exceed 1 W.

Ignition coil outputs

Output voltage: max. 250 V

Output energy in normal operation mode: 130 mJ

  

Frequency of the pickups

The frequency of the pickup is calculated as per the following formula.