Kohler EKOZD Series Service page 183

Activator
Board
Description
P17- 1 PWM target current signal, 5B, LED(- ) LED is 1.2 VDC max. Can be connected to a 12-volt battery negative terminal as an
P17- 2 Normal power input
P17- 3 Normal power input
P17- 4 Normal power input
P17- 5 Field current output (- )
P17- 6 PWM target current signal, 3B, LED(+) LED is 1.2 VDC max. Can be connected to a 12-volt battery positive terminal as an
P17- 7 Alternator power input (- )
P17- 8 Alternator power input (+)
P17- 9 Not used
P17- 10 DC bus voltage (+)
P17- 11 DC bus voltage (- )
P17- 12 Field overvoltage (+)
P17- 13 Field overvoltage (- )
P17- 14 Field current output (+)
Figure 10-18 Activator Board P1 Connections
TP-6953 7/19
Comments
activator troubleshooting test. Add a 120 ohm resistor when using a 12 VDC (battery).
25- 250 VAC @ 30- 400 Hz ( 3 amps.).
Rated at 5.0 amps. continuous, 7.8 amps peak for 1 minute.
activator troubleshooting test. Add a 120 ohm resistor when using a 12 VDC (battery).
12- 200 VDC or 120 VAC (for powering the board during testing).
Rated at up to 30 VDC, 250 mA, relay driver output. Turns on when the DC bus that
provides current to the field reaches 35 VDC. This occurs when the alternator is
producing at least 25 VAC on the auxiliary windings. This output is typically used to
disconnect the field flash relay.
Rated at up to 30 VDC, 250 mA, relay driver output. Turns on when the DC voltage of
the field (between FP and FN) exceeds 80 VDC indicating an over excitation condition.
Rated at 5.0 amps. continuous, 7.8 amps peak for 1 minute.
Section 10 Alternator Component Testing and Adjustment 183