GE IC3645SR4U404N2, IC3645SP4U400N3 Armature current exceeds, Armature transistor limit

Page 37

DIAGNOSTIC STATUS CODES

SX TRANSISTOR CONTROL

TRACTION

DESCRIPTION OF STATUS

STATUS CODE

 

-67

The armature current exceeds the

armature transistor limit.

MEMORY RECALL

CORRECTIVE ACTIONS

YES

 

 

SYMPTOM

Circuits valid

Control will not operate.

 

for

POSSIBLE CAUSE

Traction

Shorted motor armature A1 to A2

Power cables may be shorted to each other

Controller

(Measure at control terminals)

 

A1 to A2 terminals may be shorted to battery

 

positive or negative

 

 

Page 37

CAUSE OF STATUS INDICATION

This status code will be displayed when the armature transistor exceeds its specific current limit. The control is reset by recycling the key switch.

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

Image 37
Contents Installation and Operation Table of Contents 41-45 20-4046-52 57-62Motor Characteristics Basic Operation and FeaturesSolid-State Reversing More Features with Fewer ComponentsFlexible System Application Slows with the increase of current in the field1.c Control Acceleration 1.b Creep Speed2 Current Limit 3.c Pedal Position Plug Braking4.b Speed Limits 6 Steer Pump Contactor Time Delay4.c Proportional Operation for Dual Motor Vehicles 5 Ramp Operation 5a Ramp Start7 On-Board Coil Drivers & Internal Coil Suppression Diagnostics 1 Systems DiagnosticsSystem Protective Override 1 Static Return to Off SRO 2 Accelerator Volts Hold Off4 Battery Discharge Indication BDI 3.a Maintenance Alert & Speed Limit3 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 Section DRAWINGS, Elementary Drawings and INPUTS/OUTPUTS ControlPIN Connections to Main Plug 23 PIN and Y Plug 12 PINDiagnostic Status Codes Medium-Power Signals Level MP High-Level Signals Level H2.d. High Power Signals Level HP Cable Spacing GuidelinesReconnect plugs Cleaner328A1777G1 General Troubleshooting Instructions Traction Control Codes No seat switch or deadman switchTraction Status CodeDescription of Status Cause of Status Indication Reverse directional switch is closed onAccelerator 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 afterDischarged 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 temperatureLow Motor armature offset voltage is tooArmature 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 transistor limit Armature current exceedsVerify connection between the master control P21 Traction Status Code Symptom TMM Status Codes TemperatureSteer 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 temperaturePump Controller motor current No power to pump motorSensor input is missing Control rangePower Transistor Q1 did not turn on Power Transistor Q1 did notTurn off properly With no pump contactor, controlContactor closes Capacitor volts are low after the lineSensor input voltage polarity Controller motor currentCheck Voltage at capacitor 1C is less than Volts Battery voltage is less thanTMM7A TMM7A Outline Drawings 3 TMM Pump Control ConnectionsSTART-UP Display Sequence Adjustable FeaturesAction 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 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 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 % onField Current Summary of Current Limit AdjustmentsFunction 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 SL3Function 54 Mode 2 Speed Limit 3 SL3 Function 53 Mode 2 Speed Limit 2 SL2Function 55 not Applicable Function 59 not ApplicableApplication Dash DisplaysStandard Dash Displays ConnectionsOutline Drawings Start-Up Display SequenceSetup 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/HunReset to Zero Only Dash Display CA-1 Dash Display FWS-1 Reset to Zero Only Stored Status Code #16None Dash Display Ratio2-1 None