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

Page 28

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
	-28	the run mode.
	MEMORY RECALL	CORRECTIVE ACTIONS
	YES	CORRECTIVE ACTIONS
	YES
	Circuits valid	SYMPTOM
	for	Control will not operate.
	for
	Traction	POSSIBLE CAUSE
	Controller	Continued operation of vehicle in high motor
	Controller	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	SEATSW.	STARTSW.	FOR.SW.	REV. SW.
	TO	P5
	TO		L
FU6	ACCESSORIES	P4
FU6	P3	P4
	PY7					P4
	PY12 P18		P17 P1 P2	P6	P3	P4	P5
	PY10		OSCILLATOR CARD		P7	P10 P9 P12 P8
	PY11		LEFT CONTROL
LINE FU1
							STEER
FU2							ANGLE
FU2					ACC POT		POT
					ACC POT

+	FU4								BDI INTERRUPT
+	FU4
	P
		POS	A1	F1	FIELD	ARMATURE	NEG	A2	F2	FIELD	ARMATURE
-			POWER		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

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Contents Installation and Operation Table of Contents 20-40 41-4546-52 57-62Basic Operation and Features Motor CharacteristicsMore Features with Fewer Components Solid-State ReversingFlexible System Application Slows with the increase of current in the field1.b Creep Speed 1.c Control Acceleration2 Current Limit 3.c Pedal Position Plug Braking6 Steer Pump Contactor Time Delay 4.b Speed Limits4.c Proportional Operation for Dual Motor Vehicles 5 Ramp Operation 5a Ramp StartDiagnostics 1 Systems Diagnostics 7 On-Board Coil Drivers & Internal Coil SuppressionSystem Protective Override 1 Static Return to Off SRO 2 Accelerator Volts Hold Off3.a Maintenance Alert & Speed Limit 4 Battery Discharge Indication BDI3 Hourmeter Readings 4.a Internal Resistance CompensationBasic Operation and Features Part Number Outline DRAWINGS, Elementary Drawings and INPUTS/OUTPUTSArgument Outline SX-3 and SR-3 Package Size Drawings and INPUTS/OUTPUTS DRAWINGS, Elementary Drawings and INPUTS/OUTPUTS Control SectionConnections to Main Plug 23 PIN and Y Plug 12 PIN PINDiagnostic Status Codes High-Level Signals Level H Medium-Power Signals Level MP2.d. High Power Signals Level HP Cable Spacing GuidelinesReconnect plugs Cleaner328A1777G1 General Troubleshooting Instructions No seat switch or deadman switch Traction Control CodesTraction Status CodeReverse directional switch is closed on Description of Status Cause of Status IndicationAccelerator depressed with no Start switch fails to closeDirection selected KEY Negative Both the forward and reverse Directional switches are closed atSame time Start switch closed on power up after Initial key switch closureDischarged battery Reverse direction Motor field current is high on start upForward direction Run mode Volts DC Power supply is less than 10 voltsMotor field current is too high during Traction Controller Slave/auxiliary control Transistor over temperature Open thermal protector TP orMotor armature offset voltage is too LowArmature transistor did not turn off ProperlyArmature transistor did not turn on Than 12% of battery voltsLook Ahead test for A2 volts less Capacitor volts are low before the line Motor field current is too low duringContactor closes Input too low during running Controller motor current sensorLine driver input P2-17 is less Description Armature current exceeds Armature transistor limitVerify connection between the master control P21 Traction Status Code Symptom Temperature TMM Status CodesSteer Plug P5 pump is shorted to positive Plug P8 pump is shorted to positive Corrective Actions TROUBLE-SHOOTING Diagram YES Pump SymptomPossible Cause Transistor is over temperature Open thermal protector TP1 orNo power to pump motor Pump Controller motor currentSensor input is missing Control rangePower Transistor Q1 did not Power Transistor Q1 did not turn onTurn off properly With no pump contactor, controlCapacitor volts are low after the line Contactor closesSensor input voltage polarity Controller motor currentCheck Battery voltage is less than Voltage at capacitor 1C is less than VoltsTMM7A 3 TMM Pump Control Connections TMM7A Outline DrawingsAdjustable Features START-UP Display SequenceAction Accessing Stored Status Codes With GE HandsetRemarks Function Function 10 Field Current for Regen Battery Volts Battery volts Set unitsInternal Resistance Compensation Function 16 Stall Trip Point with % ON-TIME PushFunction 25 Monitor Function 19 Maintenance Code Tens and Units Hours SETFunction 26 Base Ratio Function 51 Mode 1 MAX Armature % on Function 49 Mode 1 Field Weakening Start PushFunction 28 Stored Status Code Count Pointer Push Function 52 Mode 2 Armature Controlled Acceleration Function 55 Mode 2 MAX Armature % onFunction 57 Mode 3 Field Weakening Start Function 59 Mode 3 MAX Armature % onSummary of Current Limit Adjustments Field CurrentFunction 14 not Applicable Function Current LimitFunction 16 Speed / Torque Compensation Speed / Torque Compensation Table Voltage Setting Function 48 Mode 1 Controlled Acceleration PushFunction 49 Mode 1 Speed Limit 2 SL2 Push Function 50 Mode 1 Speed Limit 3 SL3Function 53 Mode 2 Speed Limit 2 SL2 Function 54 Mode 2 Speed Limit 3 SL3Function 55 not Applicable Function 59 not ApplicableDash Displays ApplicationStandard Dash Displays ConnectionsStart-Up Display Sequence Outline DrawingsSetup Turn Angle Potentiometer InstallationOperation Degree Potentiometer for Steer Angle Input Degree Potentiometer Left Right Traction Control RS-232 Memory MAP TablesRestrictions Function Reset to Zero Only Stored Status Code #5 Reset to Zero Only Stored Status Code #6Reset to Zero Only HoursTens/Ones Reset to Zero Only HoursThou/HunReset to Zero Only Stored Status Code #16 Reset to Zero Only Dash Display CA-1 Dash Display FWS-1None Dash Display Ratio2-1 None