INSTRUCTION MANUAL __________________________________________________________________________ INSTALLATION - OPERATION - MAINTENANCE jKSSS Plus Series Medium Voltage Solid State Starters Firmware Rev 6.96 Issued: 9/09 Manufactured in the USA Document: VF010H05...
SAFETy IMPORTANT MESSAGES Read this manual and follow its intructions. Signal words such as DANGER, WARNING and CAUTION will be followed by important safety information that must be carefully reviewed. Indicates a situation which will result in death, serious injury, and severe property damage if you DANGER do not follow instructions.
SAFETy SAFETy CODES Toshiba motor control is designed and built in accordance with the latest applicable provisions of NEMA and the National Electrical Code. Installations must comply with all applicable state and local codes, adhere to all applicable National Electric Code (NFPA 70) standards and instructions provided in this manual.
JKSSS+ Series JKSSS+ Series Medium Voltage Solid State Soft Starters 2.3 - 4.2KV Installation & Operation Manual Chapter 1: Introduction ... 1 Overview Speciﬁ cations Design Features Structure and Power Bus Theory of Operation General Protection Thermal Overload Protection Firing Circuit Electronics Chapter 2: Installation ...
JKSSS+ Series Chapter 1 - Introduction This chapter is an introduction to the Toshiba JKSSS+ Series reduced voltage solid state starter for medium voltage AC motors. It describes the basic configuration, operation and unit features. It is highly recommended that new users read this section thoroughly to gain a basic understanding of the starter system before attempting to start up a unit.
JKSSS+ Series 1.2 Specifications (continued) Two Stage Electronic Overload Curves Overload Reset Retentive Thermal Memory Dynamic Reset Capacity Phase Current Imbalance Protection Over Current Protection (Electronic Shear Pin) Load Loss Trip Protection Coast Down (Back Spin) Lockout Timer Starts-per-hour Lockout Timer Type / Rating Run Indication At Speed Indication...
JKSSS+ Series 1.2 Specifications (continued) Motor Load Current Data Thermal Data Start Data RTD Data (Option) Voltage Metering Protocol Signal Network Functionality LCD Readout Keypad Status Indicators Remote Mount Capability Operating Memory Factory Default Storage Customer Settings and Status Real Time Clock Metering Functions Percent of FLA A, B, C Phase Current, Avg Current, Ground Fault (Option)
JKSSS+ Series 1.3 Design Features The standard JKSSS+ configuration is a complete NEMA Class E-2 motor controller which includes the following features: • Isolation Switch: An isolation switch is provided in the incoming power section of the starter assembly. The maximum voltage is 7200V. Power is switched on and off to the controller by a fixed-mounted, externally- operated, three-pole isolation switch.
JKSSS+ Series • Contactors: Vacuum contactors are provided for both In-Line Isolation and SCR Bypass. The contactor voltage ratings are: 7.2kV for 2300 - 6900V units. A sequencing feature controls the contactors. Under normal operating conditions this ensures that both contactors make and break under no-load conditions to maximize contactor life.
JKSSS+ Series Removable conduit entry plates are provided in the bottom of the enclosure to facilitate drilling and punching of conduit holes without exposing the equip- ment to contamination from metal debris. • Enclosure Finish: The enclosure is suitable for use in noncorrosive environ- ments.
JKSSS+ Series until one of three things happen: the motor accelerates to full speed, the Ramp Time expires or a Current Limit setting is reached. If the motor accelerates to full speed before the ramp time setting has expired, an automatic Anti-Oscillation feature will override the remaining ramp time and full voltage will be applied.
JKSSS+ Series 1.6 General Protection The soft starter is provided with a built-in motor protection relay that can be programmed for primary protection of the motor/load system. Operation of the soft starter can be divided into 4 modes; Ready, Start, Run and Stop. Ready Mode: In this mode, control and line power are applied and the starter is ready for a start command.
JKSSS+ Series · Coast-To-Stop Mode: Power is immediately removed from the motor and the soft starter returns to the Ready Mode. Additional protection features activated when the stop command is given include: · Coast-Down / Back Spin Timer · Starts-per-Hour · Time Between Starts ·...
JKSSS+ Series · RTD Input: Will bias the register in either direction based on real-time input of the motor, bearing and even ambient temperature conditions. · Dynamic Reset is another feature that adds reliability and consistency to the performance of the soft starter. If a motor overload condition occurs and the soft starter trips, it cannot be reset until sufficient cool down time has elapsed.
JKSSS+ Series 1.9 Electronics The JKSSS+ Series electronics systems are divided into two categories, Low Voltage and Medium Voltage, based solely on where they are located in the starter structure. Low Voltage electronics include the Keypad Operator Interface, CPU and Main Power PC boards are located in an isolated Low Voltage Compartment of the enclosure.
If the controller is not upright upon receipt, notify the carrier of possible damage. Upright the unit as soon as possible. Immediately notify the nearest Toshiba representative. • Carefully unpack the unit and make an immediate inspection for any damage which might have occurred during shipment.
JKSSS+ Series Always keep the controller upright while lifting. Some controller sections may contain heavy or special equipment that will cause the center of gravity to be off-center. Rigging lengths should be adjusted to maintain the controller in an upright position. The angle between the lifting cables and vertical should not be allowed to exceed 45 degrees (Fig.
3300 ft (1000m). NOTE: Temperature or altitude conditions outside of the usual limits may require derating or other special equipment, such as heating, cooling or ventilation. Contact Toshiba for further information. If the location for installation is damp, space heaters may be required. If space heaters are furnished inside the controller, they should be connected in accordance with the wir- ing diagram furnished.
JKSSS+ Series 2.4 - Dimensions Note: Dimensions are for reference only and subject to change. Contact factory for exact dimensions. 2.5 - Mounting Each shipping section must be leveled and firmly secured to its supporting foundation. Steel shims may be used for final leveling (Fig. 3), if necessary. When three or more shipping sections are to be arranged in one continuous line-up, the center shipping section should normally be the first located.
JKSSS+ Series There is a rating data label on the inside of each medium voltage compartment door. Verify that the controller ratings properly match the system data by checking the follow- ing: Verify agreement of full load current, locked rotor current and acceleration time with motor nameplate.
JKSSS+ Series Ensure that safety signs are not covered or obscured by paint. Do not remove, cover or destroy any safety signs. WARNING The setting of any adjustable current and voltage trip mechanisms should be verified to the proper values. NOTE: Damage from faults can be reduced if devices used for short circuit and ground fault protection are chosen and set to operate at values as close to minimum as feasible, while allowing normal transients.
JKSSS+ Series & Cautions 2.8 - Warnings This section involves working with potentially lethal voltage WARNING levels! Use extreme caution to prevent injury. Pressing “Stop” push button does not remove AC mains potential. Do not service this equipment with voltage applied! The unit WARNING can be the source of fatal electric shocks! To avoid shock hazard, disconnect main power and control power before working on the unit. Warning labels must be attached to terminals, enclosure and control panel to meet local codes. Do not connect the capacitors to the load side (motor side) CAUTION of the solid state starter. This will cause di/dt damage to the SCRs when they are turned on. Do not connect the capacitors to the input side of the unit. CAUTION If you cannot avoid using capacitors across the power lines, they must be located as far upstream as possible of the input line contactor.
JKSSS+ Series 2.3 - 4.2KV NOTE: Covers and braces supplied only for protection during shipment should not be replaced. All debris and tools should be removed from each compartment as cabling is completed. Fig. 5 Main Bus Splice Connections - 1200A Main Bus Fig. 6 Main Bus Splice Connections - 2000A Main Bus JKSSS+ Series - 19...
JKSSS+ Series 2.9.1 - Incoming Line On the Standard JKSSS, incoming power cable connections should be made at the points shown on the wiring diagram furnished with the equipment. Note: Proper phase sequence must be observed when connecting the input power. For example, phase A must lead phase B, which in turn must lead phase C by 120° respectively.
JKSSS+ Series Controller used as service equipment for an ungrounded system or as a main section for a separately derived system. a. A grounding electrode conductor (ground wire) sized in accordance with NEC 250 should be run from the grounding electrode to the controller ground bus or ground terminal. b.
JKSSS+ Series 2.10 Control Connections - TCB (Terminal and Control Board) THIS SECTION INVOLVES WARNING POTENTIALLy LETHAL VOLTAGE LEVELS! USE ExTREME CAUTION TO PREVENT INjURy. Do not bypass the electrical or mechanical interlocks. This will cause severe equipment damage and possible fatal injury. 2.10.1 JKSSS Plus-TCB Board The JKSSS Plus-TCB board provides interconnections between the main power and CPU boards and the customer’s control logic connections. It is a 120Vac control board with several auxiliary dry control contacts, built-in time delay circuits and emergency bypass func- tions.
JKSSS+ Series Emergency Bypass Control - Terminal Block 2 (TB2): • Positions 1 and 2 are for an emergency bypass contact. If a dry contact closes position 1 and 2, this causes the CPU to be shut off so there is no display. Then when a start is initiated, it pulls in the inline isolation contactor which starts the motor across the line.
JKSSS+ Series • Positions 5 and 6 accept dry, normally closed contact from the bypass contac- tor for an At Speed indication. (Factory wired) • Positions 7 and 8 are wired to the coil of the bypass contactor and energizes and de-energizes the contactor.
JKSSS+ Series 2.3 - 4.2KV 2.11b Communications Board REAR VIEW (RS422) (RS485) Note: Remove for last unit in modbus string 2.11c Communications Board Connections RS485 Connections RS422 Connections (Customer Connections) (Factory Only) JKSSS+ Series - 26...
JKSSS+ Series 2.11d Power Board Board Test Points Ground 2.11e Power Board Connections Factory use only. Do not reprogram. N.O. N.C. C N.O. N.C. C AUX1 AUX2 (TRIP) (ALARM) Relay Relay Refer to Setpoint Page 5 for programming information N.O. N.C. N.O. N.C. N.O. N.C. C AUX3 AUX4 AUX5...
JKSSS+ Series 2.11f CPU Board Connections JKSSS+ Series - 28 Contact factory for remote reset connections Note: Install program jumper to enable setpoint programming. Jumper must be removed after programming or for prolonged storage to preserve settings. 2.3 - 4.2KV Factory wired. Do not change...
JKSSS+ Series Chapter 3 - Start-up THE JKSSS+ UNIT DEALS WITH POTENTIALLy LETHAL VOLTAGE WARNING LEVELS. yOU MUST BE CERTAIN THAT PERSONNEL ARE THOROUGHLy TRAINED IN THE APPLICABLE SAFETy PRECAUTIONS BEFORE PROCEEDING WITH THIS SECTION! 3.1 Preliminary Start-Up Check List Please make the following checks before applying power to the unit: • Qualified personnel have hi-potted the line and load wiring before connecting to the soft start.
JKSSS+ Series 3.3.3 Current Limit Factory Setting = 350% of unit FLA Range = 200% - 500% of unit FLA The current limit adjustment is factory set for 350% of the unit’s rating. The range of adjustment is 200% to 500%. The main function of cur- rent limit is to cap the peak current. It may also be used to extend the ramping time if required.
JKSSS+ Series Shock Wave is avoided. When the output voltage to the motor is low enough to no longer be needed, the soft starter will end the Decel cycle and turn itself off. Another common application for decel control is on material handling conveyors as a means to prevent sudden stops that may cause products to fall over or to bump into one another.
JKSSS+ Series • When the motor reaches full speed, the “AUX4” LED (At Speed) will be lit. • The POWER, RUN, AUX3 LEDs will be lit, indicating that the contact has energized. IA, IB, IC will display the current setting for Phase A, Phase B, and Phase C and the G/F indicates ground fault.
JKSSS+ Series Chapter 4 - User Interface & Menu Navigation This chapter explains the keypad operator interface, the LCD descriptions and the programming features 4.1 Keypad/Operator Interface The user keypad/ keypad operator interface consists of: • 2 row by 20 characters Liquid Crystal Display (LCD) • 12 LEDs •...
JKSSS+ Series 4.2.1 Password Access Screens in Level 1 of the setpoint menu can be changed without password access because they list basic motor information. Screens in Levels 2 and 3 require passwords because they provide more in-depth protection and control of the unit. The password in Levels 2 and 3 can be changed by the user.
JKSSS+ Series Chapter 5 - Setpoint Programming The JKSSS+ Series has thirteen programmable setpoint pages which define the motor data, ramp curves, protection, I/O configuration and communications. In Section 5.1, the setpoint pages are outlined in chart form. In Section 5.2 the setpoint pages are illustrated and defined for easy navigation and programming.
JKSSS+ Series 5.1.4 Relay Assignments (Setpoint Page 4) Setpoint Security Description Page Level O/L Trip I/B Trip S/C Trip Overcurrent Trip Stator RTD Trip Non Stator RTD Trip *G/F Hi Set Trip *G/F Lo Set Trip Phase Loss Trip Accel. Time Trip Start Curve Trip Over Frequency Trip Under Frequency Trip I*I*T Start Curve...
JKSSS+ Series 2.3 - 4.2KV 5.1.5 Relay Configuration (Setpoint Page 5) JKSSS+ Series - 39...
JKSSS+ Series 5.1.6 User I/O Configuration (Setpoint Page 6) Setpoint Security Description Page Level Tachometer Scale Selection Manual Tach Scale 4.0 mA: Manual Tach Scale 20.0 mA: Tach Accel Trip Mode Select Tach Ramp Time Tach Underspeed Trip PT Tach Overspeed Trip PT Tach Accel Trip Delay Analog Output #1 Analog Output #1 4mA: Analog Output #1 20mA:...
JKSSS+ Series 5.1.7 Custom Acceleration Curve (Setpoint Page 7) Setpoint Security Description Page Level Custom Accel Curve Custom Curve A Curve A Voltage Level 1 Curve A Ramp Time 1 Curve A Voltage Level 2 Curve A Ramp Time 2 Curve A Voltage Level 3 Curve A Ramp Time 3 Curve A Voltage Level 4 Curve A Ramp Time 4 Curve A Voltage Level 5...
JKSSS+ Series 5.1.9 RTD Configuration (Setpoint Page 9) Setpoint Security Description Page Level Use NEMA Temp for RTD Values # of RTD Used for Stator RTD Voting Stator Phase A1 Type RTD #1 Description Stator Phase A1 Alarm Level Stator Phase A1 Trip Level Stator Phase A2 Type RTD #2 Description Stator Phase A2 Alarm Stator Phase A2 Trip Level...
JKSSS+ Series 5.1.12 System (Setpoint Page 12) Setpoint Security Description Page Level Default Display Screen Metering Data Page # Metering Data Screen # Alarms RTD Failure Alarm Thermal Register Alarm Thermal Alarm Delay Thermal Register Setup Info Cold Stall Time Hot Stall Time Stopped Cool Down Time Runing Cool Down Time Relay Measured Cool Rates Thermal Register Minimum...
JKSSS+ Series SP.1 Basic Configuration (Setpoint Page 1) In Setpoint Page 1, the starter is looking for the following basic nameplate data of the motor. SP1.1 Motor Full Load Amps: Allows the user to enter the motor’s FLA rating. Range of adjustment is 50 - 100% (less programmed service factor). SP1.2 Service Factor: Sets the pickup point on the overload curve as defined by the programmed motor full load current.
JKSSS+ Series SP.2 Starter Configuration (Setpoint Page 2) MENU (Hit DOWN ARROW one time) PAGE 2 STARTER START CONTROL MODE CONFIGURATION : START RAMP 1 JOG, START RAMP 1, START RAMP 2, DUAL RAMP, CUSTOM ACCEL CURVE,START DISABLED JOG VOLTAGE : 50% Range: 5 - 75% or Off Increments 5 START RAMP #1 TYPE : VOLTAGE...
JKSSS+ Series SP.2 Starter Configuration (Setpoint Page 2) Provides multiple choices for starting ramps that can be selected for particular loads and applications. SP2.1 Start Control Mode: Start Ramp 1, Jog, Start Disabled, Tach Ramp, Custom Accel Curve, Dual Ramp, Start Ramp 2. • Dual Ramp: The dual ramp mode works in conjunction with External Input #3.
JKSSS+ Series the Voltage Ramp or the Current Ramp. Every load requires some amount of torque to start from a standstill. It is inefficient to begin ramping the motor from zero every time, since between zero and the WK2 break-away torque level, no work is being performed.
JKSSS+ Series SP.3 Phase & Ground Settings (Setpoint Page 3) (Security Level: 2) Note: Proper phase sequence must be observed when connecting the input power. For example, phase A must lead phase B, which in turn must lead phase C by 120° respectively. If the phase rotation is not correct, a fault light and the LCD display will indicate the problem.
JKSSS+ Series SP.3 Phase & Ground Settings (Setpoint Page 3) SP3.5 Overcurrent Trip Level: Typically used to indicate the motor is severely overloaded and at which point a trip occurs. • Overcurrent Trip Delay: The amount of time the overcurrent condition must exist before a trip will occur. SP3.6 Phase Loss Trip: When enabled, the soft starter will trip the motor...
JKSSS+ Series SP3.12 Overvoltage Trip Level: Typically used to indicate that the line voltage is too high and at which point a trip occurs • Overvoltage Trip Delay: The amount of time that the overvoltage condition must exist before a trip will occur. SP3.13 Undervoltage Alarm Level: Typically used to indicate when the line voltage is too low.
JKSSS+ Series SP.4 Relay Assignment (Setpoint Page 4) MENU (Hit DOWN ARROW three times) O/L TRIP PAGE 4 RELAY 1ST: TRIP ONLY ASSIGNMENT Range: TRIP (AUX1), ALARM (AUX2), AUX3, AUX4 I/B TRIP 1ST: TRIP S/C TRIP 1ST: TRIP ONLY OVERCURRENT TRIP 1ST: TRIP STATOR RTD TRIP 1ST: NONE NON-STATOR RTD TRIP 1ST: NONE...
JKSSS+ Series SP.4 Relay Assignment (Setpoint Page 4) (Security Level: 2) The protection functions are user programmable to an output relay. Factory setting for the trip functions assigned to TRIP (AUX1) relay and alarm functions to ALARM (AUX2) relay. AUX1 - 4 are Factory Set and should not be changed. SP4.1 The following is a list of the user programmable functions.
JKSSS+ Series SP.5 Relay Configuration (Setpoint Page 5) (Security Level: 2) In Setpoint Page 5 the user can configure the four output relays as either fail-safe or non fail-safe and latching or non-latching. SP5.1 When a relay has been configured as fail-safe and power is applied, the relay will be energized. The relay will then de-energize when an event occurs or if the power fails.
JKSSS+ Series SP.6 User I/O Configuration (Setpoint Page 6) (Security Level: 2) MENU (Hit DOWN ARROW five times) PAGE 6 USER I/O TACHOMETER SCALE CONFIGURATION SELECTION: DISABLED Options: ENABLED or TACH ACCEL TRIP MODE SELECT: DISABLED Options: UNDERSPEED, OVERSPEED or DISABLED ANALOG OUTPUT #1 :RMS CURRENT Range: Analog Output Hottest Bearing Hottest Stator RTD 0 - 200°C RMS Current...
JKSSS+ Series SP.6 User I/O Configuration (Setpoint Page 6) (Security Level: 2) The controller can be configured to accept a tachometer feedback signal through the 4-20mA input. SP6.1 The first screen of setpoint page 6 is TACHOMETER SCALE SELECTION. When this is set to ENABLED, the user will need to input the tachometer scale of the 4-20mA input range.
JKSSS+ Series SP.6 User I/O Configuration (Setpoint Page 6) (Security Level: 2) USER TCB FAULT SELECT: ENABLED PROGRAMMABLE EXTERNAL Options: Enabled or Disabled INPUTS (Continued) EXTERNAL INPUT #2 SELECT: DISABLED Options: Enabled or Disabled DUAL RAMP SELECT: DUAL RAMP Options: Enabled, Disabled or Dual Ramp THERMOSTAT SELECT: ENABLED Options: Enabled or Disabled SP6.5 User Programmable External Inputs: The controller provides up to 4 digital external inputs...
JKSSS+ Series SP.7 Custom Acceleration Curve (Setpoint Page 7) (Security Level: 3) SP7.1 Setpoint Page 7 allows the user to custom design the acceleration curve (start curve) to the specific application. The user can custom design up to three different curves in the soft starter. Only one curve can be active (enabled) at a time. Each of the three curves allow for eight voltage plotting points, with corresponding ramp times and a current limit setting.
JKSSS+ Series SP.7 Custom Acceleration Curve (Setpoint Page 7) (Security Level: 3) CURVE A VOLTAGE LEVEL 8: 100% CUSTOM CURVE A Range: 0 - 100% Increments of 1 CURVE A RAMP TIME 8: 2 SEC Range: 1 - 60 SEC Increments of 1 CURVE A CURRENT LIMIT: 350% FLA Range: 200 - 500% Increments of 10 CURVE B VOLTAGE...
JKSSS+ Series SP.7 Custom Acceleration Curve (Setpoint Page 7) (Security Level: 3) SP7.1 Setpoint Page 7 allows the user to custom design the acceleration curve (start curve) to the specific application. The user can custom design up to three different curves in the soft starter. Only one curve can be active (enabled) at a time. Each of the three curves has eight voltage levels, with corresponding ramp times and a current limit setting.
JKSSS+ Series SP.8 Overload Curve Configuration (Setpoint Page 8) (Security Level: 3) MENU (Hit DOWN ARROW seven times) PAGE 8 OVERLOAD CURVE CONFIGURATION Configures the unit’s start and run protection mode. The unit has independent start and run curve protection and the settings can be based on the OL Class or set by the motor’s locked rotor current and time.
JKSSS+ Series SP.9 RTD Optional Configuration (Setpoint Page 9) (Security Level: 3) MENU (Hit DOWN ARROW eight times) PAGE 9 USE NEMA TEMP FOR CONFIGURATION RTD VALUES: DISABLED Options: ENABLED OR DISABLED # OF RTD’S USED FOR STATOR: Range: 0 - 6 Increments of 1 RTD VOTING : DISABLED Options: ENABLED or DISABLED STATOR PHASE A1 TYPE...
JKSSS+ Series SP.9 RTD Configuration (Setpoint Page 9) (Security Level: 3) The soft starter comes with an RTD card that provides 12 programmable RTDs which are individually programmable for type. The available types are 100 ohm platinum, 100 ohm nickel, 120 ohm nickel and 10 ohm copper. Each RTD can be identified with a description name of up to 15 characters (including spacing).
JKSSS+ Series SP.10 Set Password (Setpoint Page 10) (Security Level: 3) The soft starter has three levels of user programmable setpoint screens. Level one setpoints do not require a password because the data contained in level one is basic nameplate data and starter control. Level two setpoint screens require a three-digit password to configure the protection schemes.
JKSSS+ Series SP.11 Communications (Setpoint Page 11) (Security Level: 3) SP11.1 Set Front Baud Rate: Configures the RS232 communications baud rate. SP11.2 Set Modbus Baud Rate: Configures the Modbus communications baud rate. SP11.3 Modbus Address Number: Assigns a Modbus address to the soft starter relay. SP11.4 Set Access Code: Assigns an access code to the Modbus addressing.
JKSSS+ Series SP.12 System Setpoints (Setpoint Page 12) (Security Level: 3) MENU (Hit DOWN ARROW eleven times) PAGE 12 SYSTEM DEFAULT DISPLAY SETPOINTS SCREEN ALARMS THERMAL REGISTER SETUP INFORMATION PRESS ENTER TO CLR THERMAL REGISTER METERING DATA METERING DATA PAGE #: 1 SCREEN #: 1 Enter Metering Page (1 - 4) Enter Metering Number for display Screen Number for display...
JKSSS+ Series SP.12 System Setpoints (Setpoint Page 12) (Security Level: 3) SP12.1 Default Display Screen: This setpoint group allows the user to choose the default screen the soft starter displays while the motor is running. Select the metering page number (1-3), then select the metering screen number. The range varies depending on the selected page.
JKSSS+ Series SP.13 Calibration & Service (Setpoint Page 13) (Security Level: Factory Use Only) MENU (Hit DOWN ARROW twelve times) PAGE 13 CALIBRATION SET DATE AND TIME & SERVICE ##/##/## ##:## MODEL #: ###### FIRMWARE REV. #: ###### PRESS ENTER TO ACCESS FACTORY SETTINGS SP.13 Calibration & Service (Setpoint Page 13) Certain screens are displayed for user information only, such as: Current date and time, Model number and Firmware revision number.
JKSSS+ Series Chapter 6 - Metering Pages The soft starter offers performance metering which gives the user the ability to view information about the motor and the JKSSS+ unit. 6.1 Metering Page List The following charts list each Metering Page and the functions within that page. The applicable section of the manual is also referenced.
JKSSS+ Series 6.1.4 Status (Metering Page 4) Metering Page Current status Amount of time remaining before an overload trip occurs Amount of time remaining from a thermal inhibit signal Coast down time remaining Amount of time remaining before a start command can be given Excessive number of starts per hour 6.1.5 Event Recorder (Metering Page 5) Metering...
JKSSS+ Series 6.2 Metering Menu Push MENU key to toggle the screens between Setpoint Menu and Metering Menu and follow the arrow keys to get to different screens. JKSSS+ Series - 72 MENU METERING PAGE 1 CURRENT METERED DATA METERING PAGE 2 VOLTAGE &...
JKSSS+ Series MP.1 Metering Data (Metering Page 1) Displays the basic current metering data: Screen 1: Phase A, B, C and ground fault (option) current. Screen 2: Displays the average current, percent of imbalance and the motor’s RPM (available with tachometer input) Screen 3: Displays the motor load in percent of motor FLA.
JKSSS+ Series MP.2 Metering (Metering Page 2) Displays the statistical voltage metering informa- tion. Screen 1: Displays Phase A, B, C and Power Factor. Note: P/F: N/A Motor stopped P/F: LG #.## (Lagging) P/F: LD #.## (Leading) Screen 2: Displays Phase A, B, C and Ground Fault Current.
JKSSS+ Series MP.3 RTD Values (Metering Page 3) Displays the RTD information. Screen 1: Displays the hottest stator RTD (#1 - 6 depending upon number of RTDs used for stator). Screen 2: Displays the hottest non-stator RTD (#7-12 if #1-6 is used for stator). Screen 3: Displays the temperature of stator phase A1 in °C and °F.
JKSSS+ Series MP.4 Status (Metering Page 4) Displays the present status of the soft start. Screen 1: Displays the present state of the unit as follows: Screen 1 Note: CURRENT STATUS Screens include: 1. MOTOR STOPPED READy TO START 2. MOTOR STARTING MULT. OF FLA 3. MOTOR RUNNING AT ###.## x FLA 4. LAST TRIP CAUSE NONE (or trip cause) 5. PROGRAMMING SETPOINTS 6. MOTOR STATUS UNKNOWN STATE ### (displays relay state upon error) Screen 2: Displays the amount of time remaining before an overload trip will occur.
JKSSS+ Series MP.5 Event Recorder - 60 Events (Metering Page 5) MENU METERING PAGE 5 Event Recorder (60 event) Event Event 59th Event 60th Event All events will be viewed from oldest event in buffer to most recent event. The events are listed from oldest to most recent. Screen 1: Displays the event (i.e.
JKSSS+ Series MP.6 Last Trip (Metering Page 6) Displays the information regarding the last trip. Screen 1: Displays the cause of the last trip. Screen 2: Displays the measured phase current at the time of the trip. Screen 3: Displays the Vab, Vbc, Vca and power factor at the time of trip.
JKSSS+ Series MP.7 Statistics (Metering Page 7) Displays the statistical trip information. Screen 1: Displays the total of megawatt hours. Screen 2: Displays the accumulated total running hours. Screen 3: Clears the total running hour count. Screen 4: Displays the total number of trips since the last clearing the statistical data and the total number of short circuit trips.
JKSSS+ Series Chapter 7 - Maintenance and Troubleshooting The soft starter is designed to be a maintenance-free product. However, as with all electronic equipment, the unit should be checked periodically for dirt, moisture or industrial contaminants. These can cause high voltage arc-over, carbon tracking or prevent proper cooling of the SCR heat sinks. All bolts should be checked annu- ally for proper tightness using an accurate torque wrench.
JKSSS+ Series Proble m CPU LCD Displa y Phase Loss PHASE LOSS Overload OVERLOAD TRIP Stall prevention ACCEL TIME TRIP Under Voltage UNDER VOLTAGE TRIP Trip Under Current UNDER CURRENT TRIP Trip Self-test Failure SELF-TEST FAILURE Line Frequency OVER OR UNDER Trip FREQUENCY TRIP GROUND FAULT...
JKSSS+ Series Problem CPU LCD Display Any fault indication Motor will not start message Motor vibrates/ Motor growls while starting or IMBALANCE TRIP extremely IMBALANCE ALARM unbalanced motor currents run mode 7.1.1 - SCR Testing Procedure Perform the SCR Heat Sink Ohm test on each Stack Assembly. Gate Drive Board K = Cathode = Red Wire...
JKSSS+ Series 7.2 - Typical Block Diagram Digital Controller Firing Board Control Board Customer Connections Ring Transformer Fiber Optics Fiber Optics Main 2.3 - 4.2KV Voltage Transformer SCR Assembly JKSSS+ Series - 83...
JKSSS+ Series 2.3 - 4.2KV 7.3 - Overload Curve Definition JKSSS+ Series - 84...
JKSSS+ Series 7.4 - TCB Diagram Fuses F1: Control Fuses for TB1 1 - 9 Part #ACG1A250VAC or equivalent F2: Contactor and relay output fuses Part #ACG4A250VAC or equivalent F3: TB2 Pin #6 Part #ACG4A250VAC or equivalent HEATSINK Line 120VAC Neutral Delayed Start Fuse Blown/ Disconnect Open Dual Ramp...
JKSSS+ Series 2.3 - 4.2KV 7.5 - Typical Wiring Diagram JKSSS+ Series - 86...
JKSSS+ Series 2.3 - 4.2KV JKSSS+ Series - 87...
JKSSS+ Series 7.6 - Spare Parts List Description Part Number Current Contact Factory Transformer MVC3-STK23200 MVC3-STK23400 MVC3-STK23600 Heatsink MVC3-STK41200 Assembly with MVC3-STK41400 Boards MVC3-STK41600 (1 Phase)* MVC3-STK72200 MVC3-STK72400 MVC3-STK72600 25-0200-6500-23 25-0400-6500-23 25-0600-3500-23 SCR(s) Clamped 25-0200-6500-41 in Heat Sink 25-0400-6500-41 Alone 25-0600-3500-41 25-0200-6500-72 25-0400-6500-72...
JKSSS+ Series 2.3 - 4.2KV JKSSS+ Series - 89...
JKSSS+ Series 2.3 - 4.2KV 7.7 - Instructions for Stack Replacement For Reference Only TEMP / CT Board Gate Drive Board MOV Board DV/DT Board PCB Mounting Order Gate Drive DVDT Board Board Board Temp CT Board JKSSS+ Series - 90...
Failure to follow this instruction will result in death or serious injury. Note: All power sources must be removed and a waiting period of at least 15 minutes must be observed before initiating any repairs to the unit(s) because DC voltage may still be present immediately after turning off power to the unit. Note: It is good practice to disassemble and reassemble one stack at a time so you can have an assembled and wired stack in the unit as a reference. Note: Toshiba recommends that the order include the SCR with the heat- sink assembly at a minimum. Only an experienced technician should attempt to replace the SCRs. Tools: • Phillips screwdriver • 3/8” 12 point socket set • 2 9/16” wrenches • ½” wrench • AC/DC Multimeter •...
JKSSS+ Series SCR Replacement: FAILURE TO PERFORM THIS PROCEDURE CORRECTLy WILL DAMAGE THE SCR AND WILL NOT BE COVERED UNDER WARRANTy. Remove white jumper wires on the gate drive board and make a note of their placement. Remove both 7/16 bolts and the singular 10 - 32 screw at the top of gate drive board and lift off the board. To remove the MOV board, remove the SCR gate/cathode leads (thin red and white wires) and the white jumper wires attached to them.
JKSSS+ Series Reinstallation: 1. Hold the rebuilt or new stack assembly in the vertical position with the Temp/CT board on top (only the top stack assembly will have this board in a multi-stack phase) and place the stack on the positioning studs that protrude from the isolation standoffs.
JKSSS+ Series 7.8 - Instructions for Low Voltage Test DANGER HAZARDOUS VOLTAGE Disconnect all power supplying this equipment prior to working on it. Failure to follow this instruction will result in death or serious injury. Tools: • Phillips screwdriver • Medium voltage fuse pullers if available •...
JKSSS+ Series 9. Verify or wire a 120Vac plug to the TEST plug supplied by the factory. 10. Remove all both power fuses on the medium voltage CPT (single phase control power transformer), if present.. 11. Remove 3 fuses from the medium voltage potential transformer (PT). 12.
JKSSS+ Series 32. The gate and cathode leads are the white wires on the gate drive board in the medium voltage cabinet. See drawing below. 33. If waveform is inverted, swap Oscilloscope connections for proper polarity. Close the temporary Start switch and allow the test motor to reach full speed.
JKSSS+ Series 7.9 - Maintenance Program/Servicing Equipment/Disposal/Storage MAINTENANCE PROGRAM In order to ensure continued reliable and safe operation of the equipment, a program of periodic maintenance must be established. Operating and environmental conditions will usually dictate the frequency of inspection required. NFPA Publication 70B “Electrical Equipment Maintenance” may be used as a guide for setting up the maintenance program.
JKSSS+ Series JKSSS+ Series - 98 DISPOSAL Contact your state environmental agency for details on disposal of electrical components and packaging in your particular area. STORAGE If the starter is to be stored for any length of time prior to installation, the following precautions should be taken: 1) The original packing should be restored, if possible.
ALL REPAIRED OR REPLACED EQUIPMENT AND PARTS FURNISHED PURSUANT TO THE FOREGOING WARRANTY. The total liability of the Company, Toshiba Corporation and their suppliers and subcontractors for any loss, damage or claim, whether in contact, tort (including negligence and liability without fault), or otherwise, arising out of, connected...
TOSHIBA TOSHIBA INTERNATIONAL CORPORATION INDUSTRIAL DIVISION 13131 West Little York Rd., Houston, Texas 77041 Tel 713-466-0277 Fax 713-466-8773 US 800-231-1412 Can 800-872-2192 Mex 95-800-527-1204 World Wide Web http://www.toshiba.com/ind...