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Two-phase control of three-phase loads
TE200A
Power controllers
Two-phase control
of three-phase loads
User manual
©Copyright Eurotherm Automation 1997
All rights reserved. All reproduction or transmission in any form or using any procedure
(electronic or mechanical, including photocopying or recording) without written authorisation
from EUROTHERM AUTOMATION is strictly prohibited.
EUROTHERM AUTOMATION has made every effort to ensure that the specification given in
this manual is as accurate and up to the minute as possible. However, in order to maintain our
'leading edge', it may be necessary to make certain changes or omissions to our specification. We
cannot be held responsible for any damage to persons or property or for any financial loss or costs
arising from this.
TE200A User manual HA175773ENG Iss 1 10/97
i
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Summary of Contents for Eurotherm TE200A
- Page 1 (electronic or mechanical, including photocopying or recording) without written authorisation from EUROTHERM AUTOMATION is strictly prohibited. EUROTHERM AUTOMATION has made every effort to ensure that the specification given in this manual is as accurate and up to the minute as possible. However, in order to maintain our ‘leading edge’, it may be necessary to make certain changes or omissions to our specification.
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Page 2: Table Of Contents
IDENTIFYING THE CONTROLLERS ....1-2 GENERAL INTRODUCTION TO THE TE200A SERIES .1-2 TECHNICAL SPECIFICATION .....1-5 PRODUCT CODE . - Page 3 TOOLS .........7-5 TE200A User manual...
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Page 4: European Directives
Eurotherm certifies that TE200A products, installed and used in compliance with these Instructions, meet the following EMC standards and enable the system which incorporates them to comply with the EMC Directive, as far as the TE200A products are concerned. EMC test standards... -
Page 5: Declaration Of Ce Conformity
Eurotherm has validated the compliance of TE200A products with the European Low Voltage Directive and with EMC standards through product design and laboratory testing. The tests carried out on TE200A products are listed in a Technical Construction File validated by the LCIE (Central Laboratory for the Electrical Industries), a Recognised Competent Body. -
Page 6: Precautions
Independent alarm Given the value of the equipment controlled by TE200A products it is the responsibility of the user, and it is highly recommended, that an independent safety device (alarm) should be installed. This alarm must be tested regularly. - Page 7 Page GENERAL INTRODUCTION TO THE TE200A SERIES ..1-2 TECHNICAL SPECIFICATION ......1-5 PRODUCT CODE .
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Page 8: Identifying The Controllers
The TE200A series of controllers are thyristor units designed to control the electrical power in industrial three-phase loads. A TE200A series controller is made up of two channels, each comprising a pair of thyristors connected in anti-parallel, and a direct (unswitched) channel. - Page 9 ( L 2 ) ( L 3 ) ( T 1 ) ( T 2 ) ( T 3 ) LED firing indicator Control signal connector Load terminal block Figure 1-2 Overview of the TE200A series controller (non fan-cooled unit) TE200A User manual...
- Page 10 Local control is possible via a potentiometer (10kΩ). The +5V user-voltage output is provided for this purpose. The electronics of TE200A controllers are self-supplied from the power voltage and do not require external connections (unless specified otherwise). The control function for TE200A includes line voltage squared (V ) compensation for line variations in the range ±10% of the nominal voltage of the controller;...
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Page 11: Technical Specification
Two-phase control of three-phase loads IDENTIFYING THE CONTROLLERS TECHNICAL SPECIFICATION The TE200A series of thyristor units is intended for two-phase control of an industrial three-phase load. Power Nominal current (per phase) 16A, 25A, 40A, 50A or 63A (at 45°C) Line-to-line voltage 200Vac to 500Vac (±10%) - Page 12 Pollution degree 2 permissible, defined by IEC 664 Over-voltage category III, defined by IEC 664 In order to maintain its 'leading edge', Eurotherm may have to make changes to its specifica- tions without advance notice. For any further information, or if in doubt, please contact Eurotherm Controls.
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Page 13: Product Code
230V Non-standard mains: use the coding for the voltage immediately above and choose option of power supply Input signal Code separate from electronics. 0 to 5 volts 0 to 10 volts 0V10 4 to 20 milliamps 4mA20 TE200A User manual... -
Page 14: Example Of Product Code
User manual In English Controller code: TE200A / 40A / 415V / 000 / 0V5 / FC1 / DIN / ENG / 00 SERIAL NUMBER LABELS Two identification labels provide all the information relating to the factory settings of the controller. -
Page 15: Installation
Bulkhead mounting ........2-6 TE200A User manual... -
Page 16: Installation - Safety
Please read thoroughly before installing the controller INSTALLATION - SAFETY Danger ! TE200A units must be installed by personnel qualified and trained to work with low voltage electrical equipment in an industrial environment. Units must be installed in electrical cabinets correctly fan-cooled to ensure that condensation and pollution are excluded. -
Page 17: Dimensional Details
Two-phase control of three-phase loads INSTALLATION DIMENSIONAL DETAILS Non fan-cooled controllers The overall dimensions of non fan-cooled TE200A controllers (16A to 50A ratings) are given in Figure 2-1. Weight of non fan-cooled TE200A controller: 2.3kg 18·5 ε TE200A EUROTHERM 40A/400V... -
Page 18: Fan-Cooled Controllers
INSTALLATION Two-phase control of three-phase loads Fan-cooled controllers 63A rating TE200A controllers have permanent fan-cooling. Weight of fan-cooled TE200A controller: 2.9kg The overall dimensions of the fan-cooled TE200A controller are given in Figure 2-2. 18·5 ε EUROTHERM TE200A 40A/400V (L1) -
Page 19: Mounting Details
TE200A controllers may be mounted: • On two DIN rails (code DIN) • On a bulkhead (code BKD) DIN rail mounting For mounting TE200A controllers, use symmetrical DIN rails to comply with Standard EN 50022. Upper part of back fixing plate Rail DIN 125 ±0·5 mm... -
Page 20: Bulkhead Mounting
Upper oblong hole Not used ε TE200A EUROTHERM 40A/400V (L1) (L2) (L3) Fixing plates 200 +0 (T2) (T3) (T1) Not used Lower fixing 105±0·5 plate holes Figure 2-4 Bulkhead drilling and mounting dimensions (in mm) for the TE200A controller TE200A User manual... -
Page 21: Wiring
Control wiring in local mode ......3-7 Power supply separate from electronics (option) ... .3-8 TE200A User manual... -
Page 22: Wiring - Safety
Warning ! To ensure correct grounding (EMC) of the TE200A unit, make sure that it is correctly mounted on the reference ground surface (panel or bulkhead). Failing this, it is necessary to add a ground connection at most 10cms long between the earth connection and the reference ground surface. -
Page 23: Power Wiring
Terminal capacity (mm2) 10 to 25 Equal to or greater than power cross-section Tightening torque (Nm) Table 3-1 TE200A connection details Warning ! The cross-section of the conductors to be used must comply with Standard IEC 943. TE200A User manual... -
Page 24: Power Wiring Diagram
0-10 V 0-5 V U V W 4-20 mA Three-phase load star without neutral or closed delta Figure 3-1 Power and safety earth wiring for a load connected in ‘star without neutral’ or in ‘closed delta’ (3-wire configuration) TE200A User manual... -
Page 25: User Terminal Blocks
Table 3-2 Function of user terminals Warning ! Both the fan connection (for the 63A rating) and the separate electronics supply (‘auxiliary power supply’ option) must have 0.5A protective fuses installed in each feed wire connected to a supply phase. TE200A User manual... -
Page 26: External Input Wiring
1A fuse (L1) (L2) (L3) Eurotherm 2000 Series temperature controller EUROTHERM 2208 (T2) (T1) (T3) Safety earth 1A 1B Thermocouple Control signal connector input Analogue output + To 3-wire three-phase load Figure 3-3 External control signal wiring TE200A User manual... -
Page 27: Control Wiring In Local Mode
TE200A EUROTHERM 40A/400V (L1) (L2) (L3) (T2) (T3) (T1) The TE200A input must be configured 0 to 5V Control signal connector 10 kΩ potentiometer To 3-wire three-phase load 100% User +5V Figure 3-4 Manual control wiring using an external potentiometer... -
Page 28: Power Supply Separate From Electronics (Option)
Two-phase control of three-phase loads Power supply separate from electronics (option) TE200A controllers can be used with non-standard mains. If a TE200A series controller is used with a mains supply, the voltage of which is not shown in the voltage codes, the control electronics must be fed separately from the power by a 115Vac or 230Vac auxiliary supply. -
Page 29: Configuration
Control signal configuration ......4-4 Thyristor firing mode configuration ..... .4-4 TE200A User manual... -
Page 30: Configuration - Safety
Check that there are no extraneous objects left in the unit, and in particular, no solder residue. After re-configuring the controller, amend the codes on the identification label to prevent any subsequent maintenance problems. TE200A User manual... -
Page 31: Driver Board Configuration
NOTE : • Do not modify the state of GR8, GR9 and GR10 : factory configuration • GR3 does not exist Control connector Figure 4-1 Location of configuration ‘coffee beans’ (GR) on the driver board (solder-side view) TE200A User manual... -
Page 32: Control Signal Configuration
Local control 10kΩ potentiometer Table 4-1 Input configuration Thyristor firing mode configuration The firing mode is configured by ‘coffee beans’ GR4, GR6, GR7. Thyristor firing mode ‘Coffee beans’ Burst firing Single-cycle Table 4-2 Thyristor firing mode configuration TE200A User manual... -
Page 33: Operation
‘Single-cycle’ mode (‘1-cycle burst-firing’) ....5-5 CONTROL OPERATION ....... .5-6 TE200A User manual... -
Page 34: Thyristor Firing Modes
Two-phase control of three-phase loads Chapter 5 OPERATION THYRISTOR FIRING MODES General introduction TE200A controllers have two thyristor firing modes: • Burst-firing (FC) • Single-cycle (FC1) The configuration of one of these modes is performed in the factory by soldering the ‘coffee beans’... -
Page 35: Burst-Firing' Mode
The firing rate or duty cycle is expressed by the following ratio: τ = ------------- The load power can be expressed by: P = τ . P where P represents the load power for full thyristor firing. TE200A User manual... - Page 36 The control system adjusts the basic ‘Burst-firing’ modulation time in order to retain optimum accuracy irrespective of the power demand. As a result of this type of modulation, TE200A offers precision control which adapts to each particular setpoint. Modulation time (T + T T = T = 0·3s...
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Page 37: Single-Cycle' Mode ('1-Cycle Burst-Firing')
- The non-firing time increases and, as a consequence, - The modulation time increases For a setpoint greater than 50%: - The non-firing time remains constant (1 cycle) - The firing time and the modulation time increase. TE200A User manual... -
Page 38: Control Operation
CONTROL OPERATION TE200A controllers include an internal control loop. The control algorithm of the TE200A series takes into account the value of the r.m.s. load voltage squared. The square of the r.m.s. load voltage represents the power dissipated in a purely resistive load whose value is constant with temperature. -
Page 39: Commissioning Procedure
Control signals ........6-3 POWERING UP THE CONTROLLER ..... .6-4 TE200A User manual... -
Page 40: Commissioning Procedure - Safety
COMMISSIONING PROCEDURE - SAFETY Important! Eurotherm cannot be held responsible for any damage to persons or property or any financial loss or costs arising from incorrect use of the product or failure to observe the instructions contained in this manual. -
Page 41: Checking The Characteristics
If three identical loads are configured in closed delta, the current of each phase of the power controller is √ 3 times greater than the current in each branch of the load. Supply voltage The nominal value of the TE200A voltage must be greater than or equal to the line-to-line voltage of the supply used. Warning! In order for the control algorithm to function correctly, the nominal unit voltage rating must be as close as possible to the supply voltage. -
Page 42: Powering Up The Controller
Two-phase control of three-phase loads POWERING UP THE CONTROLLER TE200A series controllers are ready to operate correctly immediately after installation and wiring in accordance with this user manual. After checking that the nominal parameters of the controller (voltage, current, input signal) are compatible with those of the installation, apply volts to the controller. -
Page 43: Maintenance
TOOLS ..........7-5 TE200A User manual... -
Page 44: Fuses
FUSES Thyristor protection Thyristors in the TE200A series controllers are protected in the following way: • by external high speed fuses against overcurrents (except for short-wave infrared applications); these fuses must be ordered separately; • by RC snubbers and internal MOVs (varistors) which protect against over-fast voltage variations and transient overvoltages when the thyristors are not conducting. - Page 45 Two-phase control of three-phase loads MAINTENANCE To protect the thyristors in the TE200A, depending on the wiring, the following combinations may be used: • Two ‘single-phase fuse and fuseholder’ assemblies installed in the controlled phases or • One ‘three-phase fuse and fuseholder assembly’ installed between the TE200A controller and the line protection and mains circuit breaker, in this instance it is possible to install a solid link in the direct phase instead of a fuse,.
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Page 46: Protection Of Auxiliary Voltage Connection
(‘Auxiliary power supply’ option) must be installed in each conductor connected to a supply phase. Auxiliary 0.5A fuse 6.3 x 32mm Fuse-holder ‘Fuse-isolator’ assembly voltage (max) isolator dimensions (mm) 250V CS174290U0A5 CP174292 63 x 15 x 52 Table 7-3 Recommended protective fuse for auxiliary voltage connection TE200A User manual... -
Page 47: Servicing
Two-phase control of three-phase loads MAINTENANCE SERVICING TE200A controllers must be mounted with the heatsink positioned vertically, with no obstruc- tions above or below which could inhibit or impede airflow. Warning! If several units are mounted in the same cabinet, they should be arranged in such a way that air expelled from one cannot be drawn into the unit located above it. - Page 48 EUROTHERM CONTROLS LIMITED UK SALES OFFICE Eurotherm Controls Limited Faraday Close, Durrington Worthing West Sussex BN13 3PL TelephoneSales: (01903) 695888 Technical: (01903) 695777 Service: (01903) 695444 Fax (01903) 695666 Sales and support in over 30 countries worldwide For countries not listed overleaf enquiries/orders to: Eurotherm Controls Limited Export Dept.,...
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