GE IC3645SP4U400N3, IC3645SR4U404N2 Volts DC Power supply is less than 10 volts, Run mode

DIAGNOSTIC STATUS CODES

SX TRANSISTOR CONTROLPage 28

TRACTION	DESCRIPTION OF STATUS			CAUSE OF STATUS INDICATION
STATUS CODE
-27	Control’s power supply is less than 10 This status code will be displayed when the control’s
	Volts DC.	power supply is less than 10 volts.
MEMORY RECALL	CORRECTIVE ACTIONS			TROUBLE-SHOOTING DIAGRAM
YES
	SYMPTOM					KEY
Circuits valid	Line contactor opens and closes, then can only			FU3
	be closed by opening and closing the key				SWITCH
for	switch.
Traction	POSSIBLE CAUSE			FU5
Controller	Discharged Battery
	• Check battery to insure proper state of charge.
	Voltage may be dropping below 10 Volts DC		+
	under load.
	Loose connection at P1.
	• Insure that the wire connection at P1 is tight.	-
							P1 P2
					NEG

Defective control.

•Replace controller unit.

TRACTION	DESCRIPTION OF STATUS
STATUS CODE
-28	Motor field current is too high during
	the run mode.
MEMORY RECALL	CORRECTIVE ACTIONS
YES
Circuits valid	SYMPTOM
for	Control will not operate.
Traction	POSSIBLE CAUSE
Controller	Continued operation of vehicle in high motor
	current condition.
	• Operate vehicle at lower motor current
	condition for 70 seconds.
	Function 7 is mis-adjusted to allow higher than
	normal motor field current.
	Adjust function per OEM instructions.

CAUSE OF STATUS INDICATION

This status code will be displayed when the current draw in the motor field is sustained above a preset limit for longer than 70 seconds.

TROUBLE-SHOOTING DIAGRAM

				BRAKE SW.
FU5	P2 KEY SWITCH P1			SEATSW.	STARTSW.	FOR.SW.	REV. SW.
FU7			SP
	TO	P5
			L
FU6	ACCESSORIES	P4
	P3
	PY7					P4
	PY12 P18		P17 P1 P2	P6	P3		P5
	PY10		OSCILLATOR CARD		P7	P10 P9 P12 P8
	PY11		LEFT CONTROL
LINE FU1
							STEER
FU2							ANGLE
					ACC POT		POT

+	FU4								BDI INTERRUPT
	P
		POS	A1	F1	FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER
							POS	A1	F1
	SP	CONNECTIONS					POWER
		LEFT CONTROL					CONNECTIONS
		NEG	A2	F2			RIGHT CONTROL
P	SP

January 2000