Datakom D-500, User Manual

Page: 23 / 153

D-500 User Manual Rev_06 Firmware V-5.8
K35D05-EN - 23 -
The Charge terminal is both an input and output.
When the engine is ready to run, this terminal supplies the excitation current to the charge alternator.
The excitation circuit is equivalent to a 2W lamp.
The threshold voltages for warning and shutdown alarm are adjustable through program parameter.
Structure:

battery voltage output through 20 ohm PTC

voltage measurement input
Output current: 160mA @12VDC
80mA @24VDC
Voltage measurement
resolution: 0.1VDC
Voltage measurement
accuracy: 2% + 0.1V (0.9V @30VDC)
Charge Fail Warning
Threshold: adjustable
Charge Fail Shutdown
Alarm Threshold:
adjustable
Open circuit voltage: battery positive
Overvoltage protection: > 500VDC continuous, with respect to battery negative
Reverse voltage
protection: -30VDC with respect to battery negative
Structure: Differential frequency measurement input
Input impedance: 50 k-ohms
Input voltage: 0.5VAC-RMS to 30VAC-RMS
Max common mode
voltage:
± 5VDC
Frequency range: 10Hz to 10 kHz
Resolution: 1 rpm
Accuracy:
0.2% + 1 rpm (±3rpm @1500 rpm)
Flywheel teeth range: 1 to 500
Do not share MPU with other devices.
3.6. CHARGE INPUT TERMINAL
3.7. MAGNETIC PICKUP INPUT