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BASIC OPERATION AND FEATURES

SX TRANSISTOR CONTROL

Page 7

October 1998

Function 4 and Function 8 of the Handset. The C/L setting is

based on the maximum thermal rating of the control.

Because of the flyback current through 3REC, the motor

current is usually greater than battery current, except at

100% ON time, or when the lA contactor is closed.

Section 2.1.3 Braking

Section 2.1.3.a Plug Braking

Slow down is accomplished when reversing direction by

providing a small amount of retarding torque for

deceleration. If the vehicle is moving, and the directional

lever is moved from one direction to the other, the plug

signal is initiated. Once the plug signal has been initiated,

the field is reversed, and the armature current is regulated

to the plug current limit as set by Function 6. Armature

current is regulated by increasing the field current as the

vehicle slows down. Once the field current reaches a

preset value, set by Function 10, and armature plug current

can no longer be maintained, the braking function is

canceled, and the control reverts back to motoring.

All energy produced by the motor during plugging is

dumped as heat in the motor in this braking mode.

Section 2.1.3.b Regenerative Braking to Zero Speed

Slow down is accomplished when

reversing direction by providing a

small amount of retarding torque for

deceleration. If the vehicle is

moving, and the directional lever is

moved from one direction to the

other, the regen signal is initiated.

Once the regen signal has been

initiated, the field current is

increased. Armature current is

regulated to the regen current limit

as set by Function 9. As the vehicle slows down, the field

current continues to increase, and transistor Q2 begins to

chop. The field current will increase until it reaches a

preset value set by Function 10, and transistor Q2 on-time

will increase until it reaches 100% on-time. Once both of

the above conditions have been met, and regen current

limit can no longer be maintained, the braking function is

canceled. The fields will then reverse, and the control

reverts back to motoring.

Part of the energy produced by the motor during regen is

returned to the battery, and part is dumped in the motor as

heat.

Section 2.1.3.c Pedal Position Plug Braking

This feature allows control of the plugging distance based

on pedal position when there has been a “directional

switch" change. Pedal position will reduce the plugging

current to the "value set by this function" as the accelerator

is returned to the creep speed position. Maximum plug

current is obtained with the accelerator in the top speed

position. This feature is adjustable by using Function 16 on

the Handset.

Section 2.1.3.d Auto Braking

This feature can be setup with the Handset using Function

17 to select "Auto Plug/Regen" . This feature is enabled by

initiating a "neutral position" using either the directional

switch or the accelerator switch. Once activated, Auto

Braking operates similar to Pedal Position Plug Braking

and is adjusted by using Function 16 of the Handset.

Section 2.1.3.e Brake Pedal Regenerative Braking

This feature sets or varies the amount of REGEN current

with AUTO-REGEN braking feature. The current is variable

through the use of a pot on the brake pedal to provide a

minimum AUTO-REGEN braking level at pedal up, but

increasing as the pedal is depressed. A set level of REGEN

CURRENT LIMIT is available with a set resistor on the brake

pedal. An open input with either adjustment mode a pot or

resistor will allow coast until either is selected. Minimum

REGEN CURRENT LIMIT requires a 4200 ohm resistor input

(minimum level 50 amp). Maximum REGEN CURRENT LIMIT

requires a 330 ohm resistor input.

Section 2.1.4 Auxiliary Speed Control

Section 2.1.4.a Field Weakening

This function allows the adjustment of the field weakening

level in order to set the top speed of the motor. The function

is enabled when the armature current is less than the value

set by Function 24 and the accelerator input voltage is less

than 1 volt. It is important to note that this function is used

to optimize motor and control performance, and this setting

will be determined by GE and OEM engineers at the time of

vehicle development. This setting must not be changed by

field personnel without the permission of the OEM.

Section 2.1.4.b Speed Limits

This feature provides a means to control speed by limiting

motor volts utilizing three "adjustable speed limits", initiated

by individual limit switches. The NC switches are

connected between input points on the control card and

battery negative. The lower motor volt limit always takes

priority when more than one switch input is open. This

motor volt limit regulates top speed of the transistor

controller, but actual truck speed will vary at any set point

depending on the loading of the vehicle. Each speed limit

can be adjustable with the Handset using Functions 11, 12,

and 13, for speed limits SL1, SL2, and SL3 respectively. SLl

is active in all card types and must be disabled with the

Handset if speed limits are not used.

ARM

Содержание IC3645SR4R404U2

Страница 1: ...nufacturer through his normal field service channels Do not contact GE directly for this assistance Copyright by General Electric Company October 1998 Section 1 0 INTRODUCTION 4 1 1 Motor Characterist...

Страница 2: ...Section 3 0 ORDERING INFORMATION ELEMENTARY AND OUTLINE DRAWINGS 11 3 1 Ordering Information for Separately Excited Controls 11 3 2 Outline SX 2 Package Size 12 3 3 Outline SR 2 Package Size 13 3 4 Du...

Страница 3: ...unction Procedures 52 6 3 1 Setup Mode 52 6 3 2 Status Code Scrolling 52 6 3 3 SX Handset Plug Connections Outline Drawing 52 6 4 Setup Functions for Traction Controller 53 59 6 5 Summary of Current L...

Страница 4: ...cal performance curves of Figure 1 the high torque at low speed characteristic of the series motor is evident In a shunt motor the field is connected directly across the voltage source and is therefor...

Страница 5: ...he motor Bypassing some of the current flowing in the field into the resistor causes the field current to be less or weakened With the field weakened the motor speed will increase giving the effect of...

Страница 6: ...sically identical and it is only software that separates a right from a left control or differentiates a control for a dual motor application from one intended for a single motor vehicle As the steer...

Страница 7: ...the value set by this function as the accelerator is returned to the creep speed position Maximum plug current is obtained with the accelerator in the top speed position This feature is adjustable by...

Страница 8: ...into the seat switch input to allow momentary opening of the seat switch if a bump is encountered Section 2 2 2 Accelerator Volts Hold Off This feature checks the voltage level at the accelerator inp...

Страница 9: ...r terminal Section 2 3 3 Hourmeter Readings This feature will display the recorded hours of use of the traction and pump control to the Dash Display each time the key switch is turned off Section 2 3...

Страница 10: ...of voltage regulator card This card provides the basic functions required for controlling the pump control optional contactors and PMT functions Battery positive is applied through a main control fuse...

Страница 11: ...Number Argument 02 Control Type SH Separately Excited Control Plugging SR Separately Excited Control Regen to Zero Argument 03 Operating Voltage 1 120 volts 5 36 48 volts 2 24 volts 6 24 36 volts 3 36...

Страница 12: ...OUTLINE DRAWINGS ELEMENTARY DRAWINGS AND INPUTS OUTPUTS SX TRANSISTOR CONTROL Page 12 October 1998 Section 3 2 Outline SX 2 Package Size...

Страница 13: ...OUTLINE DRAWINGS ELEMENTARY DRAWINGS AND INPUTS OUTPUTS SX TRANSISTOR CONTROL Page 13 October 1998 Section 3 3 Outline SR 2 Package Size...

Страница 14: ...ORWARD SW REVERSE SW BRAKE SW P10 P21 P13 ACC POT STEER ANGLE POT BDI INTERRUPT P14 P15 12V FOR TACH SIGNAL TACH INPUT SIGNAL STEER PUMP FIELD STEER PUMP ARM P11 P18 1A OR SP DVR PLUG RGN OUTPUT P7 P1...

Страница 15: ...P9 95 INPUT P8 95 INPUT LINE FU6 P19 P20 P21 P4 P3 93 INPUT 93 INPUT TO TRACTION CARD SPEED LIMIT 1 SPEED LIMIT 2 SPEED LIMIT 3 SPEED LIMIT 4 TO TRACTION P10 BDI PY7 PY12 PY10 PY11 SERIAL RECEIVE SERI...

Страница 16: ...OUTPUT 14 TACHOMETER INPUT SIGNAL TRUCK MANAGEMENT OVERTEMP OUTPUT 15 TACHOMETER 12 VOLTS SUPPLY OVERTEMP TMM FAULT 90 16 MOTOR CURRENT COMPENSATION OVERTEMP TMM FAULT 92 17 LINE CONTACTOR DRIVER AND...

Страница 17: ...discharged with periodic equalizing charges Visual inspection of GE contactors contained in the traction and pump systems is recommended to occur during every 160 hours of vehicle operation Inspectio...

Страница 18: ...on 4 2 3 a outlined below Section 4 2 3 a General Cable Spacing The following general practices should be used for all levels of cabling All cables and wires of like signal levels and power levels mus...

Страница 19: ...ollowing the instructions outlined in the following status code instruction sheets If mis operation of the vehicle occurs a status code will be displayed on the Dash Display for vehicles equipped with...

Страница 20: ...ircuit or loose connection going from the Y plug and the Dash Display or Handset Defective Dash Display or Handset Replace Dash Display or Handset NEG FU3 KEY SWITCH P1 P2 TRACTION STATUS CODE DESCRIP...

Страница 21: ...ve control Replace the controller unit KEY SWITCH P1 P2 P3 BRAKE SWITCH P17 P5 REVERSE SW FORWARD SW P4 SEAT SWITCH P6 L START SW TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION...

Страница 22: ...switch potentiometer for proper operation and ohmic value KEY SWITCH BRAKE SWITCH REVERSE SW FORWARD SW SEAT SWITCH L START SW P8 P7 ACCPOT P9 P1 P2 P3 P17 P5 P4 P6 TRACTION STATUS CODE DESCRIPTION O...

Страница 23: ...r input circuit Disconnect wire from P7 and measure voltage at wire to negative Should be zero volts for potentiometer type and less than 3 7 volts for solid state type accelerator input P9 P7 P8 ACC...

Страница 24: ...nd check wire for short circuit to positive side of directional switch Defective Control Disconnect wires and measure voltage at P4 and P5 Voltage should be less than 60 of battery volts KEY SWITCH P1...

Страница 25: ...t wire from P3 Check for short circuit from this wire to battery positive Resistance should be greater than 4 7K ohms Defective control Disconnect wire from P3 Measure voltage from P3 to negative Volt...

Страница 26: ...settings Check minimum battery volts at P1 and NEG NEG FU3 P1 NOMINAL BATTERY VOLTAGE MINIMUM LIMIT VOLTS AT 1 95 VDC PER CELL 24 80 48 72 36 23 4 78 0 46 8 70 2 35 1 TRACTION STATUS CODE DESCRIPTION...

Страница 27: ...Controller SYMPTOM Control will not operate POSSIBLE CAUSE Defective control Replace controller unit NO GRAPHIC FOR THIS STATUS CODE TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICAT...

Страница 28: ...e connection at P1 is tight Defective control Replace controller unit NEG FU3 KEY SWITCH P1 P2 TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION 28 Motor field current is too high...

Страница 29: ...IBLE CAUSE Control is in thermal cut back Allow control to cool status code should disappear Defective control Replace controller unit NO GRAPHIC FOR THIS STATUS CODE TRACTION STATUS CODE DESCRIPTION...

Страница 30: ...when during control operation the armature transistor fails to turn off This will result in a PMT condition MEMORY RECALL YES CORRECTIVE ACTIONS TROUBLE SHOOTING DIAGRAM Circuits valid for Traction C...

Страница 31: ...LEFT CONTROL MASTER TO PUMP CONTROL POSITIVE TO PUMP CONTROL POSITIVE LINE PY11 PY12 SERIAL RECEIVE SERIAL TRANSMIT BRAKE POT FU3 KEY SWITCH BRAKE SW TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE O...

Страница 32: ...r volts is less than 85 of battery volts at initial key switch on MEMORY RECALL NO CORRECTIVE ACTIONS TROUBLE SHOOTING DIAGRAM Circuits valid for Traction Controller SYMPTOM Line contactor does not cl...

Страница 33: ...de will be displayed when the voltage at master PL21 drops below 5V MEMORY RECALL YES CORRECTIVE ACTIONS TROUBLE SHOOTING DIAGRAM Circuits valid for Traction Controller SYMPTOM Control will not operat...

Страница 34: ...AL STEER PUMP FIELD STEER PUMP ARM P11 P18 1A OR SP DVR PLUG RGN OUTPUT LEFT CONTROL MASTER TO PUMP CONTROL POSITIVE TO PUMP CONTROL POSITIVE LINE PY11 PY12 SERIAL RECEIVE SERIAL TRANSMIT BRAKE POT FU...

Страница 35: ...card 1 3 4 5 2 7 9 6 8 10 11 12 13 14 15 P16 NEG USER SW SC90 WHEN TMM7A CARD IS USED NEG USER SW WHEN SR Series PUMP CONTROL IS USED TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICAT...

Страница 36: ...card 1 3 4 5 2 7 9 6 8 10 11 12 13 14 15 P15 NEG SC92 WHEN TMM7A CARD IS USED NEG USER SW WHEN SR Series PUMP CONTROL IS USED USER SW TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICA...

Страница 37: ...card 1 3 4 5 2 7 9 6 8 10 11 12 13 14 15 POS SC93A WHEN TMM7A CARD IS USED POS USER SW P4 USER SW WHEN SR Series PUMP CONTROL IS USED TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICAT...

Страница 38: ...card 1 3 4 5 2 7 9 6 8 10 11 12 13 14 15 SC94A WHEN TMM7A CARD IS USED POS P6 USER SW WHEN SR Series PUMP CONTROL IS USED POS USER SW TRACTION STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICAT...

Страница 39: ...0 PY11 SERIAL RECEIVE SERIAL TRANSMIT 5V FROM TRACTION PY10 P17 P18 ACC POT POWER CONNECTIONS POS A1 NEG FIELD ARMATURE FU1 FU5 KEY SWITCH FU6 L 1A A2 1A PUMP STATUS CODE DESCRIPTION OF STATUS CAUSE O...

Страница 40: ...EIVE SERIAL TRANSMIT 5V FROM TRACTION PY10 P17 P18 ACC POT POWER CONNECTIONS POS A1 NEG FIELD ARMATURE FU1 FU5 KEY SWITCH FU6 L 1A A2 1A PUMP STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATI...

Страница 41: ...AM Circuits valid for Pump Controller SYMPTOM Pump contactor will not pick up Status code may alternate between code 123 and code 124 Complete check for code 123 if the problem is not found perform ch...

Страница 42: ...20 P21 P4 P3 93 INPUT 93 INPUT TO TRACTION CARD SPEED LIMIT 1 SPEED LIMIT 2 SPEED LIMIT 3 SPEED LIMIT 4 TO TRACTION P10 BDI PY7 PY12 PY10 PY11 SERIAL RECEIVE SERIAL TRANSMIT 5V FROM TRACTION PY10 P17...

Страница 43: ...VER TEMP OUTPUT PY8 P15 92 INPUT P12 P9 95 INPUT P8 95 INPUT LINE P19 P20 P21 P4 P3 93 INPUT 93 INPUT TO TRACTION CARD SPEED LIMIT 1 SPEED LIMIT 2 SPEED LIMIT 3 SPEED LIMIT 4 TO TRACTION P10 BDI PY7 P...

Страница 44: ...TOM No power to pump motor in control range POSSIBLE CAUSE Defective controller unit Replace control NO GRAPHIC FOR THIS STATUS CODE PUMP STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION 1...

Страница 45: ...or Q1 did not turn on properly This status code is displayed when during pump control operation the transistor fails to turn on MEMORY RECALL YES CORRECTIVE ACTIONS TROUBLE SHOOTING DIAGRAM Circuits v...

Страница 46: ...S CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION 151 Capacitor volts are low before the line contactor closes Internal card function during precharge This status code will be displayed during k...

Страница 47: ...A2 1A PUMP STATUS CODE DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION 180 Voltage at capacitor 1C is less than 14 volts This status code will be displayed when the voltage between B and B buss bar...

Страница 48: ...Check connection from P17 to Line coil for loose connection Check connection from battery to Line coil for loose connection Check power connection from battery to contactor L Check for blown fuse ele...

Страница 49: ...e status code displayed for each input when that point is closed to battery negative or positive as indicated TMM7A Pump Card Control Status Terminal Terminal Code Connect To TB1 P16 92 Neg TB3 P11 91...

Страница 50: ...A 2 PA 4 PA 5 PZ 10 PZ 11 PY 10 PA 3 1 A1 1 A1 2 A2 1 A3 1 A2 2 A3 2 TO PY10 TRACTION Section 5 4 4 Typical Brush Wear Sensor Connections For Pump Control ARM 1 BRUSH WEAR SENSOR CONNECTIONS FOR PUMP...

Страница 51: ...Voltage 36 48 volts is auto ranging Selection of Card Operation Type At the transistor control traction card unplug the Y plug if the dash display is in use and plug in the Handset to the plug locati...

Страница 52: ...a blank display if BDI is not used and there are no fault codes The vehicle can now be operated with the Handset connected or the Handset can be disconnected before operation NOTE You can return to t...

Страница 53: ...25 5 seconds Set 1 to 255 Resolution 0 1 seconds per set unit Example Setting of 20 2 0 seconds C A and 1A Time 2 2 seconds FUNCTION 4 ARMATURE CURRENT LIMIT Push 4 This function allows for the adjust...

Страница 54: ...mission of the OEM FUNCTION 9 REGEN BRAKING CURRENT LIMIT Push 9 This function allows for the adjustment of the regen braking current limit Resolution Example Min Max Set Per unit value If set at 20 3...

Страница 55: ...sition plug range Pedal position will reduce the plugging current to the current value set by this function as the accelerator is returned to the creep speed position Maximum plug current is obtained...

Страница 56: ...should not be adjusted FUNCTION 23 ERROR COMPENSATION Push CONT 8 This function is used to reduce the ripple in the field current due to the interaction between the motor field design and the digital...

Страница 57: ...ess than 200 ohms Range 0 1 to 22 0 seconds Set 0 to 255 Resolution 0 084 seconds per set unit Example Setting of 20 1 78 seconds C A and 1 98 seconds 1A time This C A AND 1A TIME takes effect when th...

Страница 58: ...led for by the Interactive Dash Display FUNCTION 55 MODE 2 RATIO Push CONT 8 Same as Function 51 This RATIO takes effect when the Mode 2 settings are called for by the Interactive Dash Display FUNCTIO...

Страница 59: ...his MINIMUM FIELD CURRENT takes effect when the Mode 4 settings are called for by the Interactive Dash Display FUNCTION 63 MODE 4 RATIO Push CONT 16 Same as Function 51 This RATIO takes effect when th...

Страница 60: ...usted by Function 24 This function sets the armature current at which minimum field current will achieved The ratio setting isadjusted by Function 26 This function sets the ratio between armature and...

Страница 61: ...and 4 Speed Limit levels These interactive modes are pre set using the Handset Functions 48 63 or a personal computer Functions 97 112 This feature allows the operator to select the best vehicle perfo...

Страница 62: ...Not Active Display Code 99 For Four Seconds and Activate Speed Limit if selected BDI Display or Blank Display no BDI used Diagnostics Override With Fault Run Mode BDI Display or Blank Display no BDI...

Страница 63: ...e motor will reduce its speed proportionally from top speed at 16o to creep speed at 66o There will also be also available two vehicle speed limit enable points during the transition from 16o to 66o S...

Страница 64: ...on 25 to zero using the same procedure as outlined above Section 8 2 270 Degree Potentiometer Input 0 o 1 10V 1 02V 0 78V 1 90V 16 o 2 40V 3 20V 3 28V 3 52V 16 o 66 o 71 o 86 o 66 o 71 o 85 o 1 19V SL...

Страница 65: ...Proportional Reduce 1 11 65 57 3 19 65 162 Proportional Reduce 1 83 20 93 2 47 20 126 Proportional Reduce 1 10 66 56 3 20 66 163 Creep Speed 1 82 21 93 2 48 21 127 Proportional Reduce 1 08 67 55 3 22...

Страница 66: ...Tens Units HS or PC None 19 20 20 HM Thou Hun HS or PC None 20 21 21 Auto Regen HS or PC None 21 22 22 Mode Reference HS or PC For DD on power up 22 23 23 Field PWM Gain HS or PC None 23 24 24 FW Sta...

Страница 67: ...C Only Reset to Zero Only 66 67 Hours Tens Ones 9 PC Only Reset to Zero Only 67 68 Hours Thou Hun 9 PC Only Reset to Zero Only 68 69 36 Stored Status Code 10 PC Only Reset to Zero Only 69 70 BDI 10 PC...

Страница 68: ...PC None 106 107 58 Dash Display Min Fld 3 HS or PC None 107 108 59 Dash Display If Im Ratio 3 SL 3 HS or PC None 108 109 60 Dash Display CA 4 HS or PC None 109 110 61 Dash Display FWS 4 Ratio2 4 HS or...

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