Eurotherm 7000 Series User Manual
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Eurotherm 7000 Series User Manual

Eurotherm 7000 Series User Manual

Smart controllers, single-phase industrial solid state contactors
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Single phase
solid state
contactors
ENG
User Manual
• DATA MANAGEMENT • CONTROLS • PROCESS AUTOMATION•

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Summary of Contents for Eurotherm 7000 Series

  • Page 1 Single phase solid state contactors User Manual • DATA MANAGEMENT • CONTROLS • PROCESS AUTOMATION•...
  • Page 2 CONTACTORS 7000 series User Manual © Copyright Eurotherm Limited 2003 All rights reserved. All reproduction or transmission in any form whatsoever and using any procedure (electronic or mechanical, including photocopying and recording) without written permission from Eurotherm is strictly prohibited.
  • Page 3 7100S User Manual...
  • Page 4 General information about the digital communication option is presented in the technical specifications (section 1). The operation of 7100S units with this option and the operation of the digital communication are described in the ‘7000 Series. Digital Communication’ manual (part number HA176664ENG available later). 7100S User Manual...
  • Page 5 Applicable standards EUROPEAN DIRECTIVES AND APPLICABLE STANDARDS COMPLIANCE WITH PRODUCT STANDARD 7100S products comply with the terms of product standard EN 60947-4-3 ‘Contactors and motor-starters - AC semiconductor controllers and contactors for non- motor loads’. The number of this standard is indicated on the front panel label. CE LABELLING 7100S products, installed and used in accordance with their user manual, bear CE labelling to indicate compliance with the essential requirements of:...
  • Page 6 Table 2 EMC emissions standards compliance EMC FILTER (conducted emissions) For facilities required to comply with the levels stipulated under the generic standard for conducted emissions, EN 61000-6-4, Eurotherm Automation can provide optional internal filters (code FILT) on units up to 100 A. EMC GUIDE To help you deal with installation-dependent electromagnetic interference effects, Eurotherm provides an ‘Electromagnetic compatibility’...
  • Page 7 Quick commissioning COMMISSIONING FLOWCHART Product code Check characteristics of unit Pages 1-7 and specifications and installation to 1-13 correspond Pages 2-8, 2-9, Supply protection, Power wiring protective earth (PE terminal) Power terminals Pages 2-7 to 2-9, 1, 3/L2 (1/L1 for ≥ 250A) Supply: 1/L Load: 2/T1, 4/T2 (2/T1 for ≤...

  • Page 8: Table Of Contents

    Identification Chapter 1 SOLID STATE CONTACTOR IDENTIFICATION Contents Page General presentation ........1-2 Basic version .

  • Page 9: General Presentation

    Identification Chapter 1 IDENTIFICATION GENERAL PRESENTATION 7100S series solid state contactors are used to control the electrical power of single phase industrial loads. The load controlled may comprise low temperature coefficient resistive loads or short wave infrared (SWIR) elements. Current ratings vary from 16 A to 630 A (see coding), at voltages of 100 V to 690 V. 7100S series power thyristor units (rating of up to 100 A) comprise two channels, one controlled by thyristors and one direct internal channel.

  • Page 10: Versions With Options

    Identification VERSIONS WITH OPTIONS The figures below show general views of 7100S units (100 and 250 A versions) with Alarms, Retransmission or Communication options and with various input types. The diagrams indicate the power and command terminals, terminal block labels, indicators and settings push button.
  • Page 11 Identification Figure 1-3 shows a general view of a fan-cooled 7100S unit with alarms. Controlled phase terminal Protective earth (supply side) terminal used Internal fuse compartment 2 attachment screws for internal fuse compartment Internal wiring diagram (internal fuse for 125 to 250 A ratings) DLF option: Over-temperature alarm CHK/SET...
  • Page 12 Identification Version with Analogue Retransmission Option The Retransmission option (only available with the DLF option) provides an analogue signal which follows the rms load current. Figure 1-4 shows a general view of a 7100S unit with DLF and Retransmission options (here with analogue ATP input signal and Burst mode firing).
  • Page 13 (the DLF option is required to transmit the load current). The operation of the digital communication option is described in the manual ’7000 Series. Digital Communication’ (part number HA176664ENG available later). Figure 1-5 shows the general view of a 7100S unit with the digital communication option.

  • Page 14: Technical Specifications

    Identification TECHNICAL SPECIFICATIONS In accordance with product standard EN 60947-4-3 Devices for continuous duty: 1. Semiconductor contactor variant 5: Logic input signal: • DC (LDC input) or • AC (HAC input). 2. Thyristor unit variant 4: 4-20 mA analogue input signal (ATP input) or digital communication option.
  • Page 15 Identification CONTROL Power supply Self-powered electronics. ‘Logic’ firing: Conducting from 4.5 Vdc to 32 Vdc max, current ≥ 9 mA. •DC signal (LDC input) Off < 1.5 V or < 0.1 mA. Typical response time ≤ 10 ms. Conducting from 85 to 253 Vac max. Impedance ≈ 7 kΩ at 50 Hz. •...
  • Page 16 Important: For SWIR elements the DLF option applies: • if the elements are powered at nominal voltage and • in ‘Single-cycle’ mode only (available with digital communication option or with Eurotherm REMIO/TPO or i7000 synchronised interfaces). Signalling If a partial load failure (PLF fault) is detected: •...
  • Page 17 Identification DIGITAL COMMUNICATION Availability The digital communication option is exclusive with: • the Retransmission option or • control using the logic or analogue input signal. Protocol Modbus® RTU. Compliance Communication complies with the specifications given in ‘GOULD MODICON Protocol Reference Guide PI-MBUS-300 rev J’. Power supply 24 Vac (±20%), 47 to 63 Hz or 24 Vdc (±20%) non-polarised.
  • Page 18 Basic Options Basic Options 52.5 0.42 0.56 52.5 0.56 52.5 52.5 1.45 80-100 1.85 125-200 Eurotherm’s policy of continuous product improvement and development means that the specifications in this document may be modified without prior notice. 1-11 7100S User Manual...

  • Page 19: Coding

    Identification CODING 7100S Current / Voltage / Filter / Fan / Fuse / Input / Manual / Selected / options Ratings and Basic selection 1. Nominal current Code 5. High speed fuse Code Thyristor protection fuse 16 amps 25 amps •...
  • Page 20 Identification Alarm option Communication or Retransmission Option Certificate Type / Load / Contact / Protocol or / Speed or retransmitted / option Retransmission signal Options ( Options selected: YES 9. Alarm option Code 12. Communication or retransmission option * Code Serious Alarms: Digital communication Thyristor short-circuit,...

  • Page 21: Example Code

    An identification label, giving full information about the characteristics of the unit and the product identification code, is affixed to the left hand side of the unit. Location of Manufacturing code head office Product EUROTHERM Worthing, England Tel.: +44 1903 268500 code 7100S code: 100A/230V/FILT/XXXX/MSFU/ATP/ENG/YES/DLF/LTCL/NO/ RTR/0V10/CFMC Serial number...
  • Page 22 Installation Chapter 2 INSTALLATION Contents Page Safety during installation ........2-2 Mounting .

  • Page 23: Safety During Installation

    Installation Chapter 2 installation SAFETY DURING INSTALLATION (MOUNTING AND WIRING) Danger! • 7100S solid state contactors must be installed and wired by qualified staff authorised to work on low voltage industrial electrical facilities. • Units must be installed in a fan-cooled cabinet, to ensure that condensation and pollution are excluded.

  • Page 24: Mounting

    Installation MOUNTING TYPES OF MOUNTING Two types of mounting are possible: • DIN rail mounting or • bulkhead mounting with screws. Current DIN rail mounting Bulkhead mounting rating Attachment DIN rails Attachment Screws plate plate 2 × M4 16 A to 63 A One vertical One EN 50022 One vertical...

  • Page 25: Mounting On Din Rails

    Installation MOUNTING ON DIN RAILS Attachment plate Attachment hooks DIN EN50022 rail Mobile attachment hooks Catch to move mobile hooks downwards Figure 2-1 Attaching the 7100S solid state contactor to a DIN rail (16 A to 63 A, rear view) Upper attachment plate Attachment hooks DIN EN50022...

  • Page 26: Bulkhead Mounting

    Installation BULKHEAD MOUNTING For M4 screw Attachment plate For M4 screw Figure 2-3 Mounting the unit using an attachment plate for bulkhead mounting (16 A to 63 A, rear view) For two M4 screws Upper attachment plate Lower attachment plate For two M4 screws 80 ±...
  • Page 27 Installation Two 'keyhole' slots for M6 screws Upper mounting plate Lower mounting plate (fan-cooled version) Two 'keyhole' slots for M6 screws ∅ 12 124 ± 0.5 ∅ 6.5 Figure 2-5 Bulkhead mounting for ratings 125 A to 250 A (fan-cooled unit, rear view). 7100S User Manual...

  • Page 28: Wiring

    Installation WIRING POWER CONNECTIONS The protective earth terminal PE (marked with the earth symbol) must be wired to the protective earth (see section ‘Safety during installation’). Ratings 16 A to 100 A 7100S units with current ratings of up to 100 A have: •...

  • Page 29: Wiring Diagrams

    Installation POWER CONNECTION DIAGRAM The power connection to 7100S units is between one phase and neutral or between two phases depending on the nominal voltage for the unit. Ratings 16 A to 100 A Supply protection L2 (N) and cut-out Direct channel installed by user terminal...
  • Page 30 Installation Ratings 125 A to 250 A The controlled channel of the 7100S is connected between a phase and the load; the direct, exrenal link connects the second supply phase (or neutral, depending on the voltage used) to the load. For the 250 A rating the fan power supply must be connected to the FAN terminal block.

  • Page 31: Control Connections

    Installation CONTROL CONNECTIONS The control terminal blocks are plug-in screw connectors, located on the underside the unit (see figures 1-1 to 1-5). Control signal The control signal input terminals correspond to the selected input type. Input code and type Terminal Terminal Terminal Terminal Clamping Stripping...

  • Page 32: Alarm Relay Contact (Alarms Option)

    Installation Alarm relay contact (alarm option) If one of the alarm options is fitted, an alarm relay contact is available on the ‘ALR’ terminal block. The type of contact (closed or open on alarm) is determined by the product code. Contact switching capacity: 0.25 A (maximum 250 Vac or 30 Vdc). Option Code Terminal Terminal Terminal...

  • Page 33: Reference Voltage (125-250 A)

    Installation Reference voltage connections (125 - 250 A) For ratings between 125 and 250 A the non-controlled phase is connected outside the unit. To make the reference voltage available for the electronic circuits, the power voltage must be wired to the unit. This external wiring uses terminal L2 on the ‘EXT’...
  • Page 34 Operation Chapter 3 OPERATION Contents Page Firing modes ..........3-2 Logic signals (‘Logic’...

  • Page 35: Firing Modes

    Operation Chapter 3 OPERATION FIRING MODES LOGIC SIGNALS (‘Logic’ mode) When logic signals (DC or AC voltages depending on the product code) are applied to the LDC or HAC inputs, the 7100S unit fires in ‘Logic’ mode (i.e. operation equivalent to solid state contactors).

  • Page 36: Atp Analogue Signal ('Burst' Mode)

    Operation ATP ANALOGUE SIGNAL (‘Burst’ mode) When an analogue signal (4 - 20 mA) is applied to the ATP input (or Digital communication is used) the 7100S series unit operates in ‘Burst mode’. ‘Burst mode’ firing is a proportional cycle which delivers a series of complete half-cycles to the load.

  • Page 37: Indicators (Green Leds)

    Operation 7100S units with an ATP input use open loop control and thus do not compensate for supply variations. The power dissipated in the load is proportional to the analogue signal on the ATP input between 4% and 96% of the full range of the 4-20 mA signal. 100% Output 19.4 mA...

  • Page 38: Alarms (Options)

    • The user is responsible for installing independent safety mechanisms which must be inspected regularly . Given the value of the equipment controlled by the 7100S, this is strongly recommended. Eurotherm can supply various types of suitable alarm detector. ALARM STRATEGY • ALARMS DETECTED The alarms below are optionally available on 7100S series units .

  • Page 39: Grf Option

    Operation GRF OPTION SERIOUS ALARMS With the Serious alarms option the following faults are monitored: • Total Load Failure, TLF • Thyristor Short Circuit, THSC • Thyristor over-temperature, T° (only for fan-cooled units with current rating of 250 A or higher). Important: The GRF option (detection of Serious alarms) is automatically included with the DLF option.

  • Page 40: Dlf Option (Load Failure Diagnostic Alarm)

    Operation DLF OPTION (Load failure diagnostic alarm) FUNCTIONS OF THE DLF OPTION The DLF option monitors and diagnoses Partial Load Failures (PLF) and serious faults (as for the GRF option). PLF fault detection is automatically adjusted using the ‘CHK/SET’ push button. This button can also be used to disable DLF alarm monitoring and temporarily prevent PLF faults from being signalled.

  • Page 41: Load Type Matching

    The 7100S may be operated in ‘Burst mode’ firing controlled by the following: - 4-20 mA analogue signal applied to the ATP input (TB = 0.3 s ± 20%; code C16) - Eurotherm i7000 or REMIO/TPO interfaces (LDC input) - the built-in ‘Digital communication’ option (COM input).

  • Page 42: Automatic Dlf Alarm Adjustment

    Operation AUTOMATIC DLF ALARM ADJUSTMENT Adjusting PLF detection involves calculating and storing the value of the reference impedance from the measured rms current and voltage values. This can be set using the ‘CHK/SET’ push button on the front panel. The setting should preferably be adjusted when the heating elements are at their nominal temperature.

  • Page 43: Functions Of Dlf Alarm Push Button

    Operation FUNCTIONS OF DLF ALARM PUSH BUTTON The push button on the front panel of the unit with the ‘DLF’ option is labelled ‘CHK / SET’ (‘Checking / Setting’). Pushing this push button as shown on the timing diagrams below sets and diagnoses the status of the PLF detection circuit.

  • Page 44: Alarm Diagnostic Summary

    Operation ALARM DIAGNOSTIC SUMMARY The table below summarises all status LED information needed to diagnose faults. OPTIONS With or without LEDs alarm option (front panel) T° (≥ 250 A) Orange Green HEAT Green Ready Firing Over- Thyristor Thyristor Total Partial DIAGNOSIS: No alarms temperature.

  • Page 45: Analogue Retransmission (Option)

    Operation ANALOGUE RETRANSMISSION (Option) AVAILABILITY With the ‘ A nalogue retransmission’ option (code RTR), 7100S units have an isolated output (terminals 0V1 and DC1) which transmits an analogue image of the rms load current. Important! Analogue retransmission is available with the RTR option provided the DLF option is fitted, though not if the integrated digital communication option is selected.
  • Page 46 Commissioning Chapter 4 COMMISSIONING AND MAINTENANCE Contents Page Safety during commissioning and maintenance ......4-2 Commissioning ........... .4-2 Checking the characteristics .

  • Page 47: Safety During Commissioning And Maintenance

    Important! • Eurotherm shall not be held responsible for any damage, injury, losses or expenses incurred by inappropriate use of the product or failure to comply with this manual. • Accordingly the user is responsible for checking, before commissioning the unit, that all the nominal characteristics correspond to the conditions under which it is to be installed and used.

  • Page 48: Checking The Wiring

    Commissioning CHECKING THE WIRING Cut-off and isolation systems It is the user’s responsibility to wire and protect the facility according to best practice and applicable standards. Danger! A suitable device ensuring that the unit can be electrically isolated from the supply must be installed upline to enable work to be performed safely .

  • Page 49: Maintenance

    Commissioning MAINTENANCE • Every six months, check that the power and protective earth cables are correctly tightened (see ‘Wiring’ section, page 2-7). • If the load parameters change, the operation of the PLF detection must be diagnosed (see ‘DLF option’ section). •...

  • Page 50: External Fuses (Up To 100 A)

    Commissioning EXTERNAL FUSES (up to 100 A) An external high speed fuse protects the thyristors in 7100S units with a current rating of 16 A to 100 A. The product code indicates whether a fuse is included in the unit ordered and the type of fuse. With the FUSE or MSFU (Micro Switch FUse) codes, a fuse and fuse holder assembly (corresponding to the current rating) is supplied with the product.

  • Page 51: Internal Fuses (125 A And Above)

    Commissioning INTERNAL FUSES (125 A to 250 A) 7100S units with ratings of 125 A or above are fitted with an internal thryistor protection fuse. The product code indicates whether the unit has an internal fuse and whether a fuse blown contact is fitted.
  • Page 52 1-7 to 1-11 Temperature of use 1-11 Electromagnetic compatibility (EMC) Thyristor firing EMC filter v, 5-2 logic (LDC, HAC inputs) Eurotherm addresses world-wide burst mode (ATP input) Thyristor fuses 4-4 to 4-6 2-10 Firing modes 1-7, 3-2 Wiring Fuse blown contact...
  • Page 53 • Data Acquisition and Management Instrumentation • Supervisory Systems (SCADA) • Process Automation Systems Eurotherm Limited is part of Invensys plc, one of the world’s leading automation and controls companies. Eurotherm manufactures at a number of locations in Europe and the USA, and is a major supplier to the world’s processing and manufacturing industries.
  • Page 54 Tel Guanzate (+39 31) 975111 Fax (+39 31) 977512 WEB: www.eurotherm.it http://www.eurotherm.co.uk Eurotherm is part of Invensys plc Manufactured by Eurotherm Automation SAS © Copyright Eurotherm Limited 2002 All rights strictly reserved. No part of this document may be stored in a retrieval system, or any form or by any means without prior written permission from Eurotherm Limited.

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