TPS - Thyristor Power Supply for Resistive/Inductive Loads Seminar TPS - Thyristor Power Supply for Resistive/Inductive Loads September 2005 1 1 1

Thyristors based Power System Part Presentation What is TPS Applications for TPS TPS Type TPS Installation Parameter list and TPS setting 3 2 3

TPS Description Solcon's’ Thyristors based Power System (TPS) is a heavy duty fully digital, zero-crossing, three phase control power unit for all types of Resistive/Inductive loads (temperature control of heaters, etc.). 16 4 4

Applications Woods factory for construction Paper Factory Infrared Heaters Metal industry Chemical plans Oil companies 16 15 14

TPS Type TPS type Load Max. KW Max.Amp. (FLA) TPS 75 50 75 TPS 150 100   TPS 150 100 150 TPS 300 200 300 TPS 450 450 TPS 600 400 600 TPS 750 500 750 TPS 900 900 TPS 1050 700 1050 TPS 1200 800 1200 TPS 1350 1350 TPS 1500 1000 1500 43 16 15

TPS Installation ~ TPS L1 L2 L3 Circuit Breaker Analog Input (+) Mini CB I > Circuit Breaker Analog Input (+) Analog Input (-) Sync. Signal (+) Sync. Signal (-) No Connection No Connection (Galvanic Isolation) ~ Run Aux. L1 L2 L3 1 3 4 5 6 16 17 18 19 20 21 Ground TPS Relay A Relay B Relay C U V W 7 8 9 10 11 12 13 14 15 22 19 18

TPS Wiring TPS Control Wiring N Run Auxiliary Digital Inputs common 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Run Auxiliary common Programmable Output A Relay N.C. Ground (-) RS 485 (+) RS 485 N Digital Inputs Programmable Output B Relay Programmable Output C Relay Analog Input (+) Sync Signal (+) Analog Input (-) Sync Signal (-) Common TPS Control Wiring 21 20 20

Load Connection Diagram 21 21 21

TPS Zero Crossing Firing method Thyristors firing for one of the phases in zero crossing mode Tct = 1-10Sec. (Adjustable in 0.1 sec steps) Ton= 2 cycle – 10 Seconds P=PnX(Ton/Tct) Ton/Tct ~ Analog Input Signal

TPS Using 6 SCRs, 2 per phase, in an anti-parallel connection L1 3 Heater elements L2 L3 31 22 22

Control Module Plug to the Power Unit Jumper Transformer Selection Power Supply Card Transformer Plug to the Power Unit Supply Voltage Main Board Jumper Selection Optional Comm. 50

Analog Input Jumpers (internal) JP1+JP2 closed and JP3+JP4 open = Analog Current input. JP1+JP2 open and JP3+JP4 closed = Analog Voltage input Shown below, JP1+JP2 Open and JP3+JP4 Closed (Voltage Input) Shown below, JP1, JP2, JP3 and JP4 Open Shown below, JP1+JP2 Open and JP3+JP4 Closed (Voltage Input) Shown below, JP1, JP2, JP3 and JP4 Open 85 51

Front panel Keypad, LCD & LEDs Provides selection of the following modes: 8 LEDs for quick status display Page Shows list of programming pages. To select function within each page. Select   To increase displayed parameters value. Press momentarily or continuously.   To decrease displayed parameter value. Press momentarily or continuously.   Store Press to store displayed parameter value in the non‑volatile memory To save modified parameters   Select ↕ ----------- Reset Selects in the backwards direction of the above “Select” function. Functions as reset for the TPS after latched trip or alarm. Note: Alarm/Trip can not be reset if RUN input signal is ON.   69 52

TPS Parameters Pages MAIN PARAMETERS I/O PARAMETERS FIRING METHOD PROTECTION PARAMETERS LOAD SHEDDING PARAMETERS TRIPPING/ALARM OPTIONS COMMUNICATION 35 53 26

TPS Data Pages ACTUAL DATA STATISTICAL DATA FAULT DATA TEST/MAINTENANCE FAULT MESSAGES

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Main parameters setting range "LINE VOLTS (Vn) " (V) 120-690 "LINE FREQUENCY " (Hz) 50,60 "TPS RATED CURR. " (A) 4-3000 "LOAD RATED CURR." (A) "CONNECTION TYPE " Wye, Neutral Con Wye, Neutral NC Delta Inside Delta “POWER FACTOR " 0.0-1.0 "FIRING METHOD " Zero Cross Phase Cont. FM-2 "ON-OFF CYCLE T " 1.0-10.0 Sec. "TURN ON DELAY " 0.0-60.0 Sec. "TURN OFF DELAY " "PARAM. SETTING " Unlocked Locked

I/O Parameters setting "ANALOG IN TYPE " 0-10V 4-20mA 0-20mA * internal Jumper must be set to prevent damage !!! (JP1-JP4) (See page 8) "ANALG IN T.CONST" (0.1Sec) 0.0-60.0 Sec. "AUX. IN_TYPE " NO Interlock NC Interlock NO Ext. fault NC Ext. fault Remote reset Authorized key Synch "CONFIG. OUT A " Run Alarm Alarm fail safe Trip Trip fail safe Tripping/Alarm * (Comment pg 4) KWH Pulse relay

I/O Parameters setting cont. "OUT A RELAY DLY " 0.0-60.0 Sec. "CONFIG. OUT B " Run Alarm Alarm fail safe Trip Trip fail safe Tripping/Alarm * (Comment pg 4) KWH Pulse relay "OUT B RELAY DLY " "CONFIG. OUT C "

Protection Parameters Setting "UNDER CURRENT " 0-95 % of FLA "U/C DELAY " 1.0-10.0 Sec. "OVER CURRENT " 50-150 % of FLA "O/C DELAY " 0.5-5.0 Sec "UNBALANCE LVL 1 " 1-100 % of FLA "U/B LVL 1 DELAY " 1.0-60.0 Sec. "UNBALANCE LVL 2 " "U/B LVL 2 DELAY " 1.0-10.0 Sec. "UNDER VOLTAGE " 50-95 % of Un "U/V DELAY " 1.0-60.0 Sec. "OVER VOLTAGE " 100-120 % of Un "O/V DELAY " "PHASE LOSS DELAY" .01-60.0 Sec. "GND FAULT LEVEL " 1-100 % of FLA "GND FAULT DELAY " "UNDER POWER LVL " 0-95 % of Pn "UNDER POWER DLY " 1-60 Sec. "EXT. FAULT DELAY" 0-60 Sec.

Load Shed. Parameters "CURRENT LIMIT " OFF "MASTER / SLAVE " SLAVE "NO.OF SYNC UNITS" 2-10 "SYNC. NUMBER " 1-10

Tripping / Alarm Options Each protection function can be configured to activate each of the functions listed below! Note! For assignment of a specific fault to an output relay (A,B,C) such relay should be configured to “TRIPPING/ALARM OPTION” "TRIP" "REMOT RST Enabled-Disabled "ALARM" "OUTPUT A" AUTO RST" "OUTPUT B" PANEL RST "OUTPUT C"

Tripping / Alarm Options-Factory Default Each of the faults listed below can be programmed to Range of each protection parameter: Trip, Alarm, Auto Reset, Panel Reset, Remote Reset, Output A, Output B and Output C. Each one can be individually Enabled or Disabled for any one of the protection functions. Tripping and Alarm options, factory default Condition Description Trip Alarm Auto Reset Panel Reset Remote Reset Output A Output B Output C "UNDER CURRENT " - + "OVER CURRENT " "UNBALANCE LVL 1 " * "UNBALANCE LVL 2 " * "UNDER VOLTAGE “ "OVER VOLTAGE “ “PHASE LOSS “ "GND FAULT “ "UNDER POWER “ “SHORTED SCR “ “WRONG CONCT TYPE” “OVER TEMP” “EXT FAULT “ “COMM.FAULT” “INT. FAULT”

Communication and Synchronization (wiring diagram)

Load Shedding/Synchronization For LOAD SHEDDING applications. Designed to equally shift the beginning of ON cycles, between all the group of synchronized units. For example, if "no. of sync units" = 4, and "on-off ct t" is set to2.0 Sec, then the ON period of units 2,3,4 (1 is the master, 2..4 are the slaves) begin 0.5Sec,1.0Sec,1.5Sec after beginning of master ON time. Sync Feature is mainly important when the mains supply power is limited. The TPS unit can be selected as : OFF – Load Shedding feature is disabled. SLAVE – The TPS unit is controlled by another TPS unit programmed as MASTER. MASTER – The TPS unit controls a number (up to 9) of other TPS units The Master is transmitting a “Sync” signal, received by all connected units (Sync group members). Only one unit of the group should be set as Master. All others should be set as slaves. Note: Sync. LED will lit once function is enabled (other than OFF). Note: In order to have a full number of ON cycles it is recommended to program the ON-OFF CYCLE time In such manner that the number of cycles (50 or 60 Hz) divided by the number of connected TPS units will be an integer . i.e. if 3 TPS units are connected with 50Hz mains, the ON-OFF time can be, for example, 0.9Sec (45 cycles), 1,2 Sec (60 cycles), 3Sec (150 cycles).