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STI DigitalTrak2 Instruction Manual

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INSTRUCTION MANUAL
DigitalTrak2™
Instruction, installation and
maintenance manual
_____________________________________________________________________________________
STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY
www.imi-critical.com
Manual 4054 – rev.00 02/2021 – DT2
- 1 -

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Summary of Contents for STI DigitalTrak2

  • Page 1 INSTRUCTION MANUAL DigitalTrak2™ Instruction, installation and maintenance manual _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 1 -...

  • Page 2: Table Of Contents

    Actuator error 5.6 Parameter list PARAMETERS FAULT AND MAINTENANCE 7.1 Trouble shooting 7.2 Maintainance Transport and storage _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 2 -...

  • Page 3: General Information

    1.2.2 Terms and conditions STI S.r.l. guarantees that all the items produced, if installed, used and subject to maintenance, are without material and manufacturing defects, and comply with specifications in force. The period of warranty is of one year, starting from the date of installation by the first user of the product, or of eighteen months as of the date of shipment to the first user, depending on which event occurs first.

  • Page 4: Safety Notices

    Please read this manual careful before installation and debugging. 1.7 Positioner and manufacturer’s identification It is forbidden to modify the information and the marks without previous written authorization by STI S.r.l. The following plate is fastened on the positioner housing: _____________________________________________________________________________________ STI S.r.l.

  • Page 5: Description

    DigitalTrak2™ DESCRIPTION DT2 Intelligent Electro pneumatic Positioner is a loop powered instrument produced by STI s.r.l. As a control part of the pneumatic valve set, DT2 Intelligent Electro pneumatic valve Positioner is widely used in petroleum, chemical, electric power, metallurgy, paper, light industry and other fields of automation systems.

  • Page 6: Technical Parameters

    Enclosure degree of protection IP65 Weight 2 kg APPEARANCE Dimension 170×96×96mm Shell material Aluminum Die Casting _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 6 -...

  • Page 7: Assembly

    NOINIT). The two dotted lines show the limit positions of the feedback rotating range in normal status. Li m i t 1 Li m i t 2 Figure 3 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 7 -...

  • Page 8: Assembly For Linear Actuator

    For actuators with motion converter feedback linkage: Positioner installed on the side of the actuator. Through the motion converter STI model MC, connected with actuator’s shaft with rod and cam; the installation steps are the following Fix the support [# 1] on the motion converter with the four screws [# 3+455] _____________________________________________________________________________________ STI S.r.l.

  • Page 9: Assembly For Rotary Actuator

    Washer Elastic washer socket cap screw M6×12 set screw M5×5 Feedback lever Bracket 2 Bracket 1 _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 9 -...

  • Page 10: Pneumatic Connection

    1/4 (refer to ordering data). See the specific marks on the housing and choose correct type according to the marks. O U T1 O U T O U T 2 Figure 6: Pneumatic Connection _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 10 -...

  • Page 11: Electric Connections

    WARNING: Any fitting leakage is harmful to the good operation, use soapy water inspection air tightness of joint connection. 2. Connect the IN port of DigitalTrak2 smart positioner with the air supply. The compressed air through the positioner must be filtered and regulated.

  • Page 12: Digital Output Module Electric Connection (Figure 9)

    5.1 Interface description 1st line of LCD display 2nd line of LCD display Buttons Figure10: Operation Interface _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 12 -...

  • Page 13: Configuration Mode

    In the normal mode, press button “A/M” for at least 3 seconds, to enter in Configuration Mode. 2) Choose parameters for configuration Figure 11: Choose User Menu parameter _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 13 -...
  • Page 14 4) Exit configuration mode Press the button A/M for 3 seconds to exit the user menu and return to normal mode. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2...

  • Page 15: Calibration

    NOTE: During tuning process, press the function button A/M more than 3 seconds, to exit tuning state and enter automatically in normal mode _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2...
  • Page 16 After tuning, up shows parameters value; the down shows the "ED XXXX", XXXX means the relevant tuned parameters. 10) Press A/M for 3 seconds to return the normal state. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 16 -...

  • Page 17: Diagnosis Mode

    Fine-tune the installation bracket position. 5.5.3 Initialization error During the positioner tuning, step 1 is error. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 17 -...

  • Page 18: Measurement Span Is Insufficient

    For some reason, the positioner cannot drive the valve to a specific position. Display: Solution: Cleaning valve. Check the valve connected institutions. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 18 -...

  • Page 19: Parameter List

    Max output current 4.0÷20.0 20.0 ADIR Current output direction RISE/FALL RISE PROT White project for HART ON/OFF _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 19 -...

  • Page 20: Parameters

    • rising / falling • falling / rising • falling / falling • rising / rising _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 20 -...
  • Page 21 0.2 %. 36. YA: Manipulating variable limiting start 37. YE: Manipulating variable limiting end _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2 - 21 -...
  • Page 22 Fig.14: Example: YNRM = MPOS with YA = 10 % and YE = 80 % Fig.15: Example: YNRM = FLOW with YA = 10 % and YE = 80 % _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2...
  • Page 23 When PROT = ON, write parameter is allowed by PC or field communicator with HART protocol. When PROT = OFF, write parameter is not allowed by PC or field communicator with HART protocol. _____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 4054 – rev.00 02/2021 – DT2...

  • Page 24: Fault And Maintenance

    DigitalTrak2™ FAULT AND MAINTENANCE 7.1 Trouble shooting When positioner failed, follow these steps to eliminate fault, If you cannot solve the fault according to steps as bellow, please contact STI. Fault Reason Action to be taken Air pressure too low Air pressure adjustment >...

  • Page 25: Transport And Storage

    Information in this manual is protected by copyright. All rights are reserved. No part of this manual and relevant mentioned and/or enclosed documentation may be reproduced without written authorization by STI S.r.l. STI S.r.l. is not responsible for possible damage to people, equipment or data which might arise from incorrect use of the product to which the manual is referred.

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