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

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

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

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

5. 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

6. 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

7. TPS Wiring TPS Control Wiring N Run Auxiliary Digital Inputs common1 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

8. Load Connection Diagram21 21 21

9. 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

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

11. 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

12. 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

13. 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

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

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

18. 70
119

19. Main parameters setting range
"LINE VOLTS (Vn) " (V)
"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 "
"FIRING METHOD "
Zero Cross
Phase Cont.
FM-2
"ON-OFF CYCLE T "
Sec.
"TURN ON DELAY "
Sec.
"TURN OFF DELAY "
"PARAM. SETTING "
Unlocked
Locked

20. 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)
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

21. I/O Parameters setting cont.
"OUT A RELAY DLY "
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 "

22. Protection Parameters Setting
"UNDER CURRENT "
0-95 % of FLA
"U/C DELAY "
Sec.
"OVER CURRENT "
% of FLA
"O/C DELAY "
Sec
"UNBALANCE LVL 1 "
1-100 % of FLA
"U/B LVL 1 DELAY "
Sec.
"UNBALANCE LVL 2 "
"U/B LVL 2 DELAY "
Sec.
"UNDER VOLTAGE "
% of Un
"U/V DELAY "
Sec.
"OVER VOLTAGE "
% of Un
"O/V DELAY "
"PHASE LOSS DELAY"
Sec.
"GND FAULT LEVEL "
% of FLA
"GND FAULT DELAY "
"UNDER POWER LVL "
0-95 % of Pn
"UNDER POWER DLY "
1-60 Sec.
"EXT. FAULT DELAY"
0-60 Sec.

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

24. 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"

25. 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”

26. Communication and Synchronization (wiring diagram)

27. 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).