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DESCRIPTION
The Plant Master is a special stand-alone version touch-screen NXTSD104 which connects each Nexus
(PPC6000 or NX6100) to the screen via Ethernet hosting as many as 10 boilers. Each Nexus requires ei
ther, an NX6330 (12 key) Ethernet capable display or an NXTSD104 Touch Screen.
The normal 'Overview' button on the screen provides an overview of all connected systems, not just a single
boiler. It is possible to 'drill down' into any of these and access it as if the plant-mater screen was a locally
connected touch-screen. In fact, even though the Nexus may only have an NX6330 (12 key) keypad, the
operator will have the look and feel of the NXTSD104. Certain TSD104 functions will not be available unless
the Nexus has an NXTSD104.
The plant-master system incorporates boiler sequencing of up to 10 boilers. When used as a sequencing
master, the operator can select the lead boiler, limit the modulation of any boiler as well as remove a boiler
from the sequence. There are also provisions for re-configuring the boiler sequence without having to enter
the changes at each individual Nexus.
Another feature of the Plant Master sequencing is "Optimum Modulation". This feature attempts to match
the minimum number of boilers to the present load. The operator inputs a value that represents each boilers
contribution to the total plant capacity along with the approximate burner turn down . The operator also
enters a value that represents the "optimum" firing rate for the boilers on average. This optimum value
effectively limits the mod rate until the operating boilers can't meet the load demand, then overrides itself
allowing the boilers to modulate to their maximum input. This feature reduces unnecessary stress on the
boiler rear door, wall and tube sheet thus reducing maintenance cost.
PMSTR-6001
May 21, 2019
Plant Master
Touch-Screen
Guide
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Summary of Contents for Fireye Plant Master
- Page 1 There are also provisions for re-configuring the boiler sequence without having to enter the changes at each individual Nexus. Another feature of the Plant Master sequencing is “Optimum Modulation”. This feature attempts to match the minimum number of boilers to the present load. The operator inputs a value that represents each boilers contribution to the total plant capacity along with the approximate burner turn down .
- Page 2 Before attempting to install, commission or operate this equipment all relevant sections of this document must be read and fully understood. If in doubt about any requirements consult Fireye. Installation, commissioning or adjustment of this product MUST be carried out by suitably trained engineers or personnel qualified by training and experience.
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Page 3: Table Of Contents
2. DESCRIPTION OF PLANT MASTER SEQUENCING Plant Master Description....................3 Plant Master Sequencing Description................4 3. PLANT MASTER SPECIFICATION. Plant Master dimensions and mounting hole options............6 4. HOW TO INSTALL AND WIRE THE PLANT MASTER Mechanical Mounting....................7 Wiring Requirements....................7 4.2.1 General.........................8 4.2.2... -
Page 4: Introduction
The Fireye 6000 Series Plant Master is a NXTSD104 standard touch screen, which has been set to run as a Plant Master. The Fireye 6000 Series Plant Master will control and sequence up to 10 burner controllers for Steam Plant applications. The communications are delivered via Ethernet, therefore all controllers will need a display which supports Ethernet. -
Page 5: Description Of Plant Master Sequencing
Description of Plant Master Sequencing 2.1 Plant Master Description. The Plant Master is a special touch-screen mode where there is no CAN bus connection to local 6000 series burner controllers, but Ethernet is used to connect to up to 10 remote burners / boil- ers instead. -
Page 6: Plant Master Sequencing Description
Horse Power (HP). It is important that the units used are consistent as they are used to compare the output of each boiler and it’s turn-down. With this information along with the priori- ties of the boilers, the system attempts to match output in a single PID loop running in the plant master. ‘Power... -
Page 7: Plant Master Specification
Plant Master specification. Ethernet Interface Type Power Supply 24 Vac 32 - 140 F ( 0 - 60 C) Ambient Temperature Range Touch screen Protection Category IP65 screen/bezel to panel IP20 electronics behind panel Mounting Attitude Number of Relays Relay Type Volt-free single pole change-over. -
Page 8: Plant Master Dimensions And Mounting Hole Options
3.1 Plant Master dimensions (NXTSD104). -
Page 9: How To Install And Wire The Plant Master
With the sealing gasket installed between the panel and the Touch screen, the protection from ‘outside’ the panel will be IP65. 4.2 Wiring Requirements. Please pay particular attention to the wiring requirements for the Plant Master. These will protect the equipment from electrical interference, earth loop problems, and damage to the controller and modules. -
Page 10: General
The equipment described in this manual has been tested for compliance to safety directives listed in the section headed ‘Plant Master specification’. However, after it has been connected to a burner and other associated controls, it is the responsibility of the installer to make sure the complete... -
Page 11: Earth Connection
4.2.2 Earth Connection. All sections of the control system with metal enclosures MUST be connected to earth. Connect at the tag showing the Earth symbol, inside the cover on the body of the device. These connections are required to maintain the overall electrical safety of the installation and ensure the EMC performance of the equipment. -
Page 12: Plant Master Terminal Connectors
4.2.4 Plant Master terminal connections. Terminal no. Location Function Voltage Touch screen Unit *Relay output 1 common 0 – 250 V Touch screen Unit *Relay output 1 normally closed 0 – 250 V Touch screen Unit *Relay output 1 normally open 0 –... -
Page 13: Wiring
Wiring NOTE: The NXTSD104, when used as a plant master, can be powered from a separate 24 VAC 1 amp, power supply. The 24 VAC will be applied to the PT1 & 2 terminals on the TSD104. PT1 will be +24, PT2 –24 VAC. -
Page 14: Setting Up The Plant Master
CAN bus is disabled and the touch screen connects to burner and water level controls indirectly via Ethernet. The Plant Master will detect all controls on the same network subnet as itself. In the usual application this will be all the controllers which are connected to the same network router, however this is dependent on network configuration. - Page 15 Entering the Settings screen Press the Settings button Then enter passcode 903 here: Sequencing Set Up Screen...
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Page 16: Configuring Boiler Sequencing
SP2 (option parameters 22.x) define the banking cut-in and cut-out limits of the lag boilers. When the Plant Master has a lag boiler off, SP2 is selected and keeps the boiler warm and at a pressure/temperature that it can be brought back on to contribute steam/heat in a reasonable time. -
Page 17: Overview
5.2.3 Overview Here, the (header) setpoint, proportional band, I and D times can be entered. The setpoint is, of course, the desired header pressure. The header pressure measurement can come from an independent CAN bus sensor, or from the measured pressure of the lead boiler. The proportional band is entered as two settings a P Band and a power band. -
Page 18: Modulation Of Boilers
The priority of the boilers is simply determined by the lead boiler selected. If boiler 1 is lead boiler, the priorities are 1, 2, 3, 4. If boiler 3 is selected as lead, the priorities will be 3, 4, 1, 2. If a boiler is unavailable for sequencing because it has locked out or is otherwise held off, the sequencing system just skips it and goes it's 'next boiler'. - Page 19 Restore Procedure To restore NXTSD104 back to 6000 controller mode: Press on unit button top right hand corner of NXTSD104. Select Ethernet. Select Ethernet Button to Disable Plant Master. Restoration complete. WARNING: Before enabling the “Sequencing” button, be certain that all parameters in the various boiler and header sections are correct and make sense.
- Page 20 Fireye warranty, as stated in its General Terms and Conditions of Sale, pertains only to the Fireye products and not to any other equip ment or to the combined system or its overall performance.
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