Power Transistor Q1 did not, Turn off properly | GE IC3645SR4U404N2

DIAGNOSTIC STATUS CODES

TRANSISTOR PUMP CONTROL

Page 49

	PUMP	DESCRIPTION OF
	STATUS CODE	STATUS
	-144	Power Transistor (Q1) did not
	-144	turn off properly.
	MEMORY RECALL	CORRECTIVE ACTIONS
	YES	CORRECTIVE ACTIONS
	Circuits valid	SYMPTOM
	Circuits valid	With no pump contactor, control
	for	With no pump contactor, control
	for

CAUSE OF STATUS INDICATION

This status code is displayed when, during pump control operation, the transistor fails to turn off. This will result in a PMT condition.

TROUBLE-SHOOTING DIAGRAM

FU3	KEY SWITCH	TO TRACTION
FU6		TO TRACTION
FU6		P10 - BDI

PY7

Pump	may run continuously.
Pump
Controller	POSSIBLE CAUSE
	Control is defective.
	• Replace controller unit.

LINE FU1

+

-

P1 P2 P3

	POS	A1	FIELD

		POWER	ARMATURE
	CONNECTIONS
	NEG	A2

PY12

P21 P19 P12 PY10

PY11

SPEED LIMIT 3

SPEED LIMIT 2

SPEED LIMIT 1

TO

TRACTION

CARD

PUMP	DESCRIPTION OF STATUS
STATUS CODE
-145	Power Transistor (Q1) did not turn on
-145	properly.
MEMORY RECALL	CORRECTIVE ACTIONS
YES	CORRECTIVE ACTIONS
Circuits valid	SYMPTOM
Circuits valid	With no pump contactor, the control
for	may run continuously.
Pump	POSSIBLE CAUSE
Controller	POSSIBLE CAUSE
	Control is defective.
	• Replace controller unit.

LINE

+

-

CAUSE OF STATUS INDICATION

This status code is displayed when during pump control operation, the transistor fails to turn on.

TROUBLE-SHOOTING DIAGRAM

FU3	KEY SWITCH	TO TRACTION
FU6		TO TRACTION
FU6			P10 - BDI
						PY7
	P1	P2	P3			PY12
				P21 P19 P12 PY10
						PY11
FU1				LIMIT 3	LIMIT 2	LIMIT 1
FU1				SPEED	SPEED	SPEED
				SPEED	SPEED	SPEED
POS	A1		FIELD
POS	A1
	POWER		ARMATURE	TO
CONNECTIONS				TO
NEG	A2			TRACTION
NEG	A2			CARD
				CARD

January 2000

Image 49

GE IC3645SR4U404N2 Power Transistor Q1 did not, Turn off properly, With no pump contactor, control, May run continuously

Contents

Installation and Operation Table of Contents 41-45 20-4046-52 57-62 Motor Characteristics Basic Operation and Features Solid-State Reversing More Features with Fewer ComponentsFlexible System Application Slows with the increase of current in the field 1.c Control Acceleration 1.b Creep Speed2 Current Limit 3.c Pedal Position Plug Braking 4.b Speed Limits 6 Steer Pump Contactor Time Delay4.c Proportional Operation for Dual Motor Vehicles 5 Ramp Operation 5a Ramp Start 7 On-Board Coil Drivers & Internal Coil Suppression Diagnostics 1 Systems DiagnosticsSystem Protective Override 1 Static Return to Off SRO 2 Accelerator Volts Hold Off 4 Battery Discharge Indication BDI 3.a Maintenance Alert & Speed Limit3 Hourmeter Readings 4.a Internal Resistance Compensation Basic Operation and Features Part Number Outline DRAWINGS, Elementary Drawings and INPUTS/OUTPUTSArgument Outline SX-3 and SR-3 Package Size Drawings and INPUTS/OUTPUTS Section DRAWINGS, Elementary Drawings and INPUTS/OUTPUTS Control PIN Connections to Main Plug 23 PIN and Y Plug 12 PIN Diagnostic Status Codes Medium-Power Signals Level MP High-Level Signals Level H2.d. High Power Signals Level HP Cable Spacing Guidelines Reconnect plugs Cleaner328A1777G1 General Troubleshooting Instructions Traction Control Codes No seat switch or deadman switchTraction Status Code Description of Status Cause of Status Indication Reverse directional switch is closed on Accelerator depressed with no Start switch fails to closeDirection selected KEY Negative Both the forward and reverse Directional switches are closed atSame time Initial key switch closure Start switch closed on power up after Discharged 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 Open thermal protector TP or Transistor over temperature Low Motor armature offset voltage is tooArmature transistor did not turn off Properly Armature 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 transistor limit Armature current exceeds Verify connection between the master control P21 Traction Status Code Symptom TMM Status Codes Temperature Steer Plug P5 pump is shorted to positive Plug P8 pump is shorted to positive Corrective Actions TROUBLE-SHOOTING Diagram YES Pump SymptomPossible Cause Open thermal protector TP1 or Transistor is over temperature Pump Controller motor current No power to pump motorSensor input is missing Control range Power Transistor Q1 did not turn on Power Transistor Q1 did notTurn off properly With no pump contactor, control Contactor closes Capacitor volts are low after the line Sensor input voltage polarity Controller motor currentCheck Voltage at capacitor 1C is less than Volts Battery voltage is less than TMM7A TMM7A Outline Drawings 3 TMM Pump Control Connections START-UP Display Sequence Adjustable Features Action Accessing Stored Status Codes With GE HandsetRemarks Function Function 10 Field Current for Regen Battery volts Set units Battery VoltsInternal Resistance Compensation Function 16 Stall Trip Point with % ON-TIME Push Function 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 55 Mode 2 MAX Armature % on Function 52 Mode 2 Armature Controlled AccelerationFunction 57 Mode 3 Field Weakening Start Function 59 Mode 3 MAX Armature % on Field Current Summary of Current Limit Adjustments Function 14 not Applicable Function Current LimitFunction 16 Speed / Torque Compensation Function 48 Mode 1 Controlled Acceleration Push Speed / Torque Compensation Table Voltage SettingFunction 49 Mode 1 Speed Limit 2 SL2 Push Function 50 Mode 1 Speed Limit 3 SL3 Function 54 Mode 2 Speed Limit 3 SL3 Function 53 Mode 2 Speed Limit 2 SL2Function 55 not Applicable Function 59 not Applicable Application Dash DisplaysStandard Dash Displays Connections Outline Drawings Start-Up Display Sequence Setup 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 #6 Reset to Zero Only Stored Status Code #5Reset to Zero Only HoursTens/Ones Reset to Zero Only HoursThou/Hun Reset to Zero Only Dash Display CA-1 Dash Display FWS-1 Reset to Zero Only Stored Status Code #16None Dash Display Ratio2-1 None