The EAM 108 is an electronic interface module designed for use with the Woodward 8290 speed control. The module accepts a nominal 5.0V DC signal and provides a 1.5V DC signal output to the 8290 control. DC power for the module is supplied from the 24V DC battery that powers the 8290 control.
See Wiring Diagram.
Note: The common battery minus connection between the 8290, EAM 108, and the GAC auto -
sync and load sharing system should be as direct as possible electrically (minimum voltage difference).
Input impedance (terminals D & A) 60K ohms
Output impedance (terminals 11 & 12) 5.8K ohms
Nominal output voltage (terminals 11 & 12) 1.50V DC
Output voltage range ((terminals 11 & 12) 0-2.6V DC
Nominal input voltage (terminals D & A) 5.0V DC
Transfer function -1.9 volts/volt (without trim pot) -1.1 volts/volt (with trim pot)
Temperature range -400 to +850 C
DC supply range (terminals 1 & 12) 15 to 32V DC
DC supply current (terminals 1 & 12) 20mA
Trim pot (terminals A, B,& C) use 5K trim potentiometer