DR-0015 - HubSpot
Contents
1. Introduction TEK The OZSCR1000 is a state of the art multifunction digital SCR firing and control board It is ideally suited for a wide range of system applications including Single and Three Phase AC Switches Single Phase Rectifiers Three Phase 6 12 and 18 Pulse Rectifiers Three Phase 6 pulse 4 quadrant Rectifiers Configuration and operating parameters are easily changed using the RS485 Modbus interface and the SCR Configuration Tool This Quickstart guide provides step by step guidelines on how to get the OZSCR1000 up and running in a simple phase angle control configuration as well as instructions on how to use the Configuration Tool to change some of the common configuration parameters OZSCR1000 Quickstart Guide Getting Started Phase Angle Operation J21 Control Inputs J1 6 SCR Connections a wy Se Ss J20 J23 Modbus Universal AC Input By default the OZSCR1000 is configured to operate in open loop phase control mode with the following settings e 0 10V Control Input e Soft Start Stop Disabled e 3 Phase Bridge Converter The figures below provide system wiring diagrams for phase control of both rectifier and AC switch applications Note If you are operating as an AC switch instead of a bridge converter or if you want to enable Soft Inhibit please refer to the section below on how to use the Configuration Tool to change the appropriate parameters aal Fast In2. Configuration Tool consists of three sections the Parameter Table Sort Options and Control Actions 4097 U16 4098 U16 4099 U16 4100 U16 4101 U16 4104 U16 4105 U16 4106 U16 4112 U16 4113 U16 4114 U16 4115 U16 4116 U16 4117 U16 4118 U16 4128 U16 4131 U16 4134 U16 4137 U16 4138 U16 Write All Load N ew Values Reset Reset Defaults i OP_MODE ANA_IN_CFG LINE_VOLT_FDB_AN_IN_FS LINE_VOLT_UV_THOLD LINE_VOLT_OV_THOLD LINE_VOLT_PH_IMB_THOLD ANA_IN_TRIM_EN ANA_IN_TRIM_IN_SEL ANA_IN_TRIM_FS INHIBIT_SOFT_DIG_IN_EN INHIBIT_SOFT_START_RATE INHIBIT_SOFT_START_ANGLE INHIBIT_SOFT_STOP_RATE INHIBIT_SOFT_STOP_ANGLE INHIBIT_SOFT_KEEP_FIRING INHIBIT_REG_DFLT PHS_ANGLE_CONTROL_MODE_A PHS_ANGLE_DFLT_SETPOINT_A PHS_ANGLE_AN_IN_SEL_A PHS_ANGLE_SLEW_RATE PHS_ANGLE_MIN Note that the Target s Value column is initially a tan color with hyphens for the data This means that the data has not yet COM9 open Description User s Value Operating Mode 2 Analog Input Configuration 0x15 Line Voltage Feedback Analog 1649 Line Voltage Under voltage Th 50 Line Voltage Over voltage Thr 950 Line Voltage Phase Imbalance Analog Input Trim Control Enable Analog Input Trim Input Select Analog Input Trim Full Scale Soft Inhibit Digital Input Enable Soft Start Ramp Rate Soft Start Inital Firing Angle Soft Stop Ramp Rate Soft Stop Final Angle Soft Inhibit Keep Firing Enable Inhibit Registers Defaul
3. GUI that provides a simple easy to use method for configuring an OZSCR1000 control board For details on installation and the complete SCC feature set please refer to the SCC User s Manual For the purposes of this Quickstart Guide step by step instructions will be given to demonsirate how to two of the common configuration settings e Operating Mode switch versus converter control 3 phase versus single phase e Soft Inhibit Input Enable In addition to the SCC software you will need an RS 485 adapter There are many different products available for this purpose Oztek recommends the B amp B Electronics USPTL4 LS hittp Awww bb elec com Step 1 Installation amp Setup Before installing the SCC be sure to install any necessary drivers for the chosen RS 485 adapter After the drivers are installed the SCC can be installed as follows 1 Download the SCC setup program SW90142_setup_ lt version gt exe from hitp www oztekcorp com 2 Double click on SW90142_setup_ lt version gt exe to open the installer wizard and follow the step by step instructions SEMIKRON 4 Page Step 2 Using the SCC The SCC Tool can be launched by clicking on the shortcut on the Desktop or in the corresponding START menu folder When SCC is launched the window on the right will be shown SCC consists of this Main Window and several child windows that can be opened within the Main Window The menu and tool bar at the top can be used to access an
4. Angle Control A 0 10V control signal can be derived using a potentiometer wired according to the figure below Input Power Connection Connect J23 to Universal Input Power 100 240 Vac 50 60 Hz Iving Power CAUTION Before applying power ensure that the Fast and Soft Inhibit switches are in the open position and the potentiometer is set to the extreme such that OV is applied to the control pin 7 i e zero ohms between pins 7 and 18 SEMIKRON OZSCR1000 Quick Start Manual Apply Universal Input Power to J23 This will power up the OZSCR1000 control circuitry There are four LEDs on the board e SYS OK Heart Beat Green e INHIBIT Red e PHASE LOSS Red e FAULT Red At this point the SYS_OK LED should be blinking green to indicate that the OZSCR1000 passed all self health checks and is operating normally The INHIBIT LED should be lit since both the Fast and Soft inhibit switches are open and therefore active The PHASE LOSS LED should also be lit since the AC mains have not yet been applied to the board The FAULT LED should not be lit as there should be no hardware faults at this point Apply 480 Vac Line Power Once line voltage is applied to the system the OZSCR1000 s phase locked loop PLL should synchronize and the controller is ready for operation Once synchronized the PHASE LOSS LED should now be off Step 2 Enabling the Controller 1 Enable th
5. e Controller Close the Fast Inhibit switch and the Soft Inhibit switch the INHIBIT LED should turn off At this point the OZSCR1000 will provide firing pulses to the SCRs However since the potentiometer was set to apply a OV control signal the SCRs should not be conducting Increase the Output Power By slowly turning the potentiometer and increasing the control voltage the SCR firing angle will advance and apply more power to the load The following figures illustrate the input line current waveforms Figure 1 25 Load power j 3 Page OZSCR1000 Quick Start Manual 3 Using Soft Inhibit If this input has been enabled opening the switch connected to the Soft Inhibit input on J21 pin 13 will cause the SCR firing angle to increase from the command angle to the maximum phase angle before firing is inhibited When the switch is closed SCR firing will begin at the maximum phase angle and ramp down to the command angle Note that the soft start and stop ramp rates can be configured using the Configuration Tool Figure 2 50 Load Power 4 Using Fast Inhibit Opening the switch connected to the Fast Inhibit input on J21 pin 12 will cause the SCR firing to immediately cease When the switch is closed SCR firing will begin at the command angle Figure 3 100 Load Power Using the SCC to Change Configuration Oztek s SCR Configuration and Control Tool SCC is a Windows based Graphical User Interface
6. hibit Soft Inhibit optional 0 10V Command OZSCR1x00 p J23 5 an affiliate op SEMIKRON eR aeaaea a aaaeaaaaa DR 0015 F IroOor Bias Supply Input AC OZSCR1000 DC OZSCR1100 Fast Inhibit Soft Inhibit optional 0 10V Command OZSCR1x00 1 Bias Supply Input J23 AC OZSCR1000 2 DC OZSCR1100 11 Continental Blvd Merrimack NH 03054 v 603 546 0090 f 603 386 6366 oztekcorp com 10 BULYULYL BALPEAOUUT U01 e USWINIYSUT pue 2 Page Step 1 Making the Necessary Connections 1 3 S tep 2 A SCR Connections The 2 pin connectors J1 J6 are used to provide the drive signals to the SCR Pin 2 should be connected to the cathode of the device and pin 1 to the gate Note J1 J2 and J3 are used for line synching and must have their cathodes connected to the AC line J4 J5 and J6 should be wired to the complementary devices of J1 J2 and J3 respectively Control Connections a Fast Inhibit Provide a single pole single throw SPST switch between pins 1 and 12 of J21 When the switch is open firing will be inhibited b Soft Inhibit optional Provide a SPST switch between pins 1 and 13 of J21 When the switch is open firing will be inhibited This input must be enabled using the Configuration Tool described later in this guide c Inhibit Return Provide a connection between pins 16 and 17 for the digital ground d Phase
7. red Hitting the Write All button will 5 Page OZSCR1000 Quick Start Manual force the tool to write all of the User s Value data to the Target To change just the Operating Mode and Soft Inhibit Enable settings the instructions are as follows e Uncheck the Select Deselect All box in the lower right hand corner e Click the check box next to the following parameters o OP MODE o INHIBIT SOFT DIG_IN EN e At this point only those two parameters should be displayed in the main window e Enter your desired operating mode in the OP_MODE parameter s User s Value box 0 for 3 phase AC switch controller with open loop phase control 2 for 3 phase AC bridge converter with open loop phase control e Enter 1 in the INHIBIT SOFT DIG_IN_EN parameter s User s Value box to enable the use of the Soft Inhibit input pin Entering 0 will disable the Soft Inhibit feature and the corresponding input pin will be ignored e Note that the Reload Target button will turn red any time new data Is entered in the User s Value column This indicates that the configuration memory was programmed but has not yet been loaded into the application for operation e Hit the Reload Target button to load the updated configuration parameters for use by the application this is normally done automatically by the controller each time the board powers up You have now successfully changed the configura
8. t Values Phase Angle Control Mode C Phase Angle Default Setpoint Phase Angle Control Analog In Phase Angle Command Slew Phase Angle Minimum Firing A 0 Cay FRET Pe Pe PS A PT Pa VP PS PT PS A EA Target s Value Units ENUM ENUM 1V oiz 0 1 01 boolean ENUM boolean Deg Sec Degree Deg Sec Degree boolean ENUM ENUM Degree ENUM File CFG90126 0000_rev6_0_0 0zCfg Device Password Open File Save To File Default Min 2 ki5 1649 Max Hide Filter Custom v OP_MODE Z ANA_IN_CFG Z LINE_VOLT_FDB_AN_IN_F Z LINE_VOLT_UV_THOLD Z LUINE_VOLT_OV_THOLD _ vZ LINE_VOLT_PH_IMB_THOI Z ANA_IN_TRIM_EN Z ANA_IN_TRIM_IN_SEL Z ANA_IN_TRIM_FS Z INHIBIT_SOFT_DIG_IN_EN Z INHIBIT_SOFT_START_RA Z INHIBIT_SOFT_START_AN Z INHIBIT_SOFT_STOP_RAT INHIBIT_SOFT_STOP_ANC vZ INHIBIT_SOFT_KEEP_FIRI Z INHIBIT_REG_DFLT Z PHS_ANGLE_CONTROL_h Z PHS_ANGLE_DFLT_SETPC v PHS_ANGLE_AN_IN_SEL_ Z PHS_ANGLE_SLEW_RATE v PHS_ANGLE_MIN Z PHS_ANGLE_MAX Z ZERO_CROSS_TOTAL_CC Z ZERO_CROSS_CNTRL_M 7 4 m b V Select Deselect All been read from the OZSCR1000 board The Configuration Tool will automatically read the Target s data and populate this column After the Configuration Tool reads the Targets Data at startup any data in the User s Value column from the ozCfg file that does not match the Target s value will be highlighted in
9. tion You can proceed with using the board in the application leaving the SCC tool connected in case you d like to make further a ia or you can disconnect by selecting the Comms gt Disconnect menu item pressing the red circle button on the tool bar or just closing the application Support Literature Document Number Title UM 0040 OZSCR1x00 User s Manual UM 0041 OZSC 1x00 Configuration amp Control Tool User s Manual DR 0014 OZSCR1000 Product Brochure FS 0053 Oztek Modbus Protocol Functional Specification OZSCR1000 Ordering Information Part Option Description Part Option Description a a 0 ete 01 Standard product 02 Standard product with conformal coat
10. y of the SCC functions The status bar at the bottom displays status information Before using any of the Tools in the SCC communications must be opened to the SCR board This can be done by first selecting the correct serial port and Modbus ID in the Comms gt Properties menu item and then selecting the Comms gt Connect menu item or by pressing the green circle button on the tool bar The Configuration Tool can be used to read or modify Oz SCR Control Center File Comms Tools XY amp 4 Help closed OZSCR1000 Quick Start Manual 3 Fog ex various settings on the OZSCR1000 board This tool can be opened by either selecting the Tools gt Configuration menu item or by pressing the blue gears i button on the tool bar All configuration parameters are non volatile i e they persist even when power is removed from the SCR board For more details on the OZSCR1000 configuration parameters please consult the User s Manual UM 0040 Step 2 Changing the Operating Mode and Soft Inhibit Enable o SCR Control Center Target Configuration 07 File Comms Tools Help 4 The first time the SCC is used it will prompt the user to download the latest SCC configuration file CFG90126 from the Oztek web gt site This file is used to display and store parameter settings for the target OZSCR1000 board Once this file has been opened the default Configuration Tool view is shown on the right The
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