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2.

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. All boilers  must  therefore  have  Ethernet  capable  display  modules  (NX6330),  or
touch-screens (NXTSD-104).

The  normal  ‘Overview’  button  on  the  screen  is  then  used  to  view  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-master screen was a locally connected touch-screen.

The plant-master system also incorporates steam boiler sequencing of up to 10 boilers

Summary of Contents for Plant Master

Page 1: ...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...

Page 2: ...st not be left uncovered while power is on If it is essential to do so while rectifying faults only personnel qualified by training and experience should be involved The time any covers are off must b...

Page 3: ...mensions and mounting hole options 6 4 HOW TO INSTALL AND WIRE THE PLANT MASTER 7 4 1 Mechanical Mounting 7 4 2 Wiring Requirements 7 5 SETTING UP THE PLANT MASTER 11 5 1 Entering Plant Master Mode 12...

Page 4: ...ll 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 1 2...

Page 5: ...boil ers instead All boilers must therefore have Ethernet capable display modules NX6330 or touch screens NXTSD 104 The normal Overview button on the screen is then used to view an overview of all co...

Page 6: ...h boiler these are entered as 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 wit...

Page 7: ...ch screen Protection Category IP65 screen bezel to panel IP20 electronics behind panel Mounting Attitude Any Number of Relays 4 Relay Type Volt free single pole change over Maximum Relay Current 6 A 2...

Page 8: ...6 3 1 Plant Master dimensions NXTSD104...

Page 9: ...unting Mount the Touch screen on the front of the burner cabinet or similar location If possible avoid reflections from windows or boiler house lighting when planning the location of the screen The ma...

Page 10: ...t practice Bootlace ferrules All cabling that operates at more than 50 V must be multi strand single core PVC insulated 16 0 2 mm 0 5mm2 and must meet the requirements of IEC 227 or IEC 225 For cables...

Page 11: ...m2 or greater as permitted by conduit sizing 4 2 3 ELV signal cable Screen Connection CANbus ELV low voltage signal cables MUST have a screen of the tinned copper braid shield type The manufacturers o...

Page 12: ...7 Touch screen Unit Relay output 3 common 0 250 V PR8 Touch screen Unit Relay output 3 normally closed 0 250 V PR9 Touch screen Unit Relay output 3 normally open 0 250 V PR10 Touch screen Unit Relay o...

Page 13: ...d the TSD104 will need to be temporarily connected to a powered Nexus PPC6000 or NX6100 for configuration as the Plant Master TSD No other connections to the PM TSD are permitted at this time Wiring s...

Page 14: ...es DHCP leave the Ethernet settings for all devices to automatic DHCP If the devices are connected by a simple Ethernet switch or a hub then IP addresses for each device will have to be set manually F...

Page 15: ...Sequencing Set Up Screen Entering the Settings screen Press the Settings button Then enter passcode 903 here 13...

Page 16: ...ally Should the sequencing system fail the boilers will fall back to independent running using SP1 SP2 option parameters 22 x define the banking cut in and cut out limits of the lag boilers When the P...

Page 17: ...ting The system will try to keep all boilers apart from the last lag boiler as close to this fire rate as possible Typically boiler efficiency peaks at around 75 modulation but all boilers are differe...

Page 18: ...ted to just over the maximum available power from all currently firing boilers at high fire This is to prevent integral wind up of the PID when waiting for boilers for come on 5 2 6 On Off Strategy Th...

Page 19: ...up to compensate 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 Mast...

Page 20: ...und defective in material or workmanship or which otherwise fails to conform to the description of the product on the face of its sales order THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTIES AND FIREY...

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