The MIC3 has the following electrical characteristics.
Feature |
Value |
---|---|
Power consumption |
Max. 65 W at 24 V |
Power supply |
10 V DC to 32 V DC |
Required current |
Max. current 6.0 A. An estimation of the power requirements can be found after this table. |
Number of outputs |
6 or 12 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 12 ignition outputs with 200 mJ), an ignition frequency of 180 Hz as continuous load is possible. With less ignition energy or in case of a brief overload, 200 Hz is possible. The maximum output load of 40 W must not be exceeded. |
Output connector |
17-pin military connector |
Estimation of Current Requirements
These current values are based on a nominal speed of 1800 rpm and 200 mJ energy.
Outputs |
Voltage |
Required current |
Voltage |
Required current |
---|---|---|---|---|
6 |
24 V |
1.2 A |
12 V * |
3.1 A |
12 |
24 V |
2.3 A |
12 V * |
4.9 A |
* Nominal voltage 24 V DC
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 |
Working resistance 27 Ω, damping 1 µF |
Analog voltage input |
Working resistance 12.4 Ω, damping 200 nF |
Aux. analog input supply voltage |
5 V to 24 V / 50 mA depending on the configuration in the MICT |
Digital input (Start/Stop) |
Wiring Input current: max. 20 mA |
Digital input (schedule A/B) |
Wiring Input current: max. 20 mA |
Digital input (GPI, multi-function input) |
Wiring Input current: max. 20 mA (Function dependent on the configuration in MICT, see Inputs/Outputs – Inputs) |
Go/NoGo and GPO outputs |
One GPO (General Purpose Output) and one Go/NoGo output Implementation as optical MosFET Voltage applied: 7 V DC to 32 V DC max. Peak/steady current: 100 mA DC max. Output power: 2.5 max. Internal resistance: 58 Ω to 60 Ω Activation delay: 0.5 ms / 100 mA load max. Deactivation delay: 0.2 ms / 100 mA load max. 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 |
Five LEDs are used as status indicators. |
ASO output |
TTL level (5 V) |
Pickup |
Impedance: 10 kΩ The voltage supply for inductive pickups can be set using the MICT from 5 V to 24 V. Max. frequency for the pickups: 10 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 MIC3 may not have a higher voltage than ±40 V peak‑peak and the connected power may not exceed 1 Watt. |
Ignition coil outputs |
Output voltage: 250 V max. Output energy in normal operation mode: 200 mJ max. Output energy in the start phase: 300 mJ max. |
Frequency of the pickups The frequency of the pickup is calculated as per the following formula. |