HomeMy WebLinkAboutGLSD - Organics to Energy Project - Miscellaneous - 240 CHARLES STREET 8/1/2018 (5) OPERATOR INTERFACE
The Human-Machine Interface (NMI), located on the gas conditioning system control
panel door, is the main operator interface for the gas conditioning system. The HMI alone does
not provide all the data necessary for monitoring and troubleshooting the system, but it is an
essential tool that all operators should be familiar with.
The HMI offers a variety of pages for operator interface. The display area, at the center
of the HMI, is where the currently selected page appears. The footer bar, located at the
bottom of the HMI, contains the page navigation icons that are used to call new pages to the
display area as well as the system status indicator.The header bar, located at the top of the
HMI, shows the current time and date on the right side and the current page tab on the left.
The values contained in these Time and Date indicators will be stamped on each alarm. If the
date and time values are not set correctly, the Time Stamp and Date Stamp indicators shown on
the New Alarms page and the Alarm History pages will be incorrect.
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Section 2 Operator Interface
Page 1
Each page contains different combinations of command icons, set point icons, and
indicator icons. The icons and pages will be described in more detail below.
Command Icons: Each command icon appears as a button shape, square shape, or rectangle
shape on the HMI with a label on or above the icon. Touch the icon to issue the associated
command.
Examples of command icons
4
Set Point Icons: Set point icons appear on the NMI as squares or rectangles with a label above
the icon and a numerical or text value on the icon. Numerical set point icons will also include a
units label on or below the icon. To change a set point, touch the set point icon. A keypad will
appear on the HMI allowing the operator to type in a new value. The allowable range is shown
at the top of the pad for set points requiring numerical entry. After the desired value is typed
in touch the Enter icon to execute the set point change and close the keypad, or touch the
Lance/icon to keep the old value.
Example of a set point icon
DISCHARGE GAS PRESSURE SET POINT PSI AT PIT-966
Indicator Icons: Indicator icons appear on the HMI as small rectangles with a value on top.
Generally a description will be found on top or to the left of the icon and a units label will be
found on the bottom or to the right of the icon. Indicators showing system data such as
temperatures, pressures, flows, etc. are generally color coded for easy recognition. Indicator
icons are for display only and cannot be manipulated by the operator.
Section 2 Operator Interface Page 2
Example of indicator icons
(Value not representative of actual temperature reading)
Tff F GLYCOL SUPPLY TEMP (TIT 141) OF
aF
Intro Page: The Intro page is the default page when the HMI is energized. It can also bey,
accessed by touching the page navigation icon labeled Intro on the HMI. The Intro page
provides contact information for the system manufacturer.
Control Page: The Control page is accessed by touching the page navigation icon labeled _
System Control. On this page, the system can be started, stopped, and reset. The selections for
the blower and chiller to run can also be performed here. The function of the commands and
the indicators are outlined below.
CONTROL
SYSTEM STATUS:
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CURRENT ALARM STATUS:
CODE DESCRIPTION COMPONENT FINE DATE
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Start command icon: Pressing the Start icon begins the automated sequence which
turns on the glycol chiller and all of the components an the gas conditioning system.
Stop command icon: Touching the Stop icon begins the automated sequence which
a Section 2 Operator Interface Page 3
turns off the glycol chiller and all of the components on the gas conditioning system.
The stop sequence will take several seconds to complete, during which time no other
o,
commands are accepted by the HMI.
Reset command icon: Touching the Reset icon clears alarms active in the PLC program.
Gas Blower Slection command icon:Touching this icon will change which blower will
run once the system is started.
Chiller Selection command icon: Touching the Chiller Selection icon will change which
chiller will run when the system is started. "
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System Status Indicator: The System Status indicator tells the operator if the system is
in standby state, run chilling state, run pressurizing state, run ok state, run-time alarm
state, auto stop state, or shutdown alarm state. Each state of operation is described
below:
Standby state: In standby state, the System Status indicator will read Standby. In o
this state, the power to the system is on, there are no alarms, and the system is
ready to run, but a valid start command has not been given. When the system is
in standby state, issuing a start command will start the system. Maintenance
should never be performed in standby state or any state other than shutdown,
with the system locked out/tagged out and isolated.
Run chilling state: After a valid start command is issued, the System Status
indicator will read Run Chilling. The glycol chiller has been given a run command
and the gas conditioning system is waiting for the glycol chiller to reach setpoint.
Run pressurizing state: After the glycol temperature has stabilized at
approximately 41°F,the System Status indicator will read Run Pressurizing. This
means the inlet actuated valve has opened and biogas is being processed by the
gas blower.
Run OK state: Once the gas pressure of the conditioning system has reached the
operator adjustable set point, the System Status indicator will read Run OK. This
means that the PLC is processing the run sequence, and that everything is
operating normally.
Page 4
Section 2 Operator Interface
Run-time alarm state: When the PLC registers a run-time alarm (RT), the System
Status indicator will read Run-time Alarm. The system will continue to run with
one or more active RT alarms. In RT alarm state, the NewAlarms page will
automatically display on the HMI. Issuing a reset command will clear any alarm
condition present in the PLC program, change the System Status to one of the
run states, and remove the New Alarms page from view. Issuing a stop
command while the system is in RT alarm state, will transition the system to auto
stop state and then to shutdown alarm state.
Auto stop state: When an operator issues a stop command, or if the PLC
registers a shutdown alarm (SD), the system will enter an automated shutdown
sequence that takes several seconds to complete. During this time the System
Status indicator will read Auto Stop, and no other start, stop, or reset commands
will be accepted until the sequence has finished. After the auto stop sequence is
complete the system will transition to either standby state or SD alarm state,
depending upon the condition of the stop command. The system must first be in
a run state before it can transition to auto stop state.
Shutdown alarm state: After the system registers a SD alarm, and the system
has completed its stop sequence, the system enters SD alarm state. In SD alarm
state,the NewAlarms page will automatically display on the HMI. Issuing a reset
4
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command will clear any alarm conditions present in the PLC program, change the
system state to standby, and remove the NewAlarms page from view. (See
Section 5 for more detail.)
Current Alarm Status Indicator: The Alarm Status indicator displays information
about the most recent, active, system alarm (if any) that exists in the PLC. Refer
to the Current, New, and Historical Alarm Status indicators description found
under the New Alarms page heading in this section for details about Alarm
Status indicators.
Page 5
Section 2 Operator Interface
Data Pages: "~
Overall Data: The Overall Data page is accessed by touching the page navigation icon
label Overall Data from the Data pages footer bar. The Overall Data page contains a
rough layout of the gas conditioning system and all of its transmitters.This page is
useful for monitoring the entire gas conditioning system. On the Overall Data page, the
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glycol chillers, blower motors, condensate pump motors, and solenoid valves will
illuminate green when running or open. Level switches LSH-951, 952, 954, 958, 955,
959, 961, 962, 963, and 964 [Unison LS 721, 723, 743, 741, 746, 744, 761, 762, 763, and
7511 display blue and will illuminate in red if the condensate level gets too high in their
corresponding vessel. Level switches LSL-951, 952, 958, and 959 [unison LS 722, 724,
742, and 7451 will display blue and will fill in green if the condensate level gets to its
level. The three way actuated valve MV-932-2 [Unison VA 302]will be display the same
color as the piping its inlet port is open to and yellow when it is traveling. The two 9
blower shut off valves ZSC-951 and 952 [Unison ZS 331 and 332] will display green when
open and red when closed.
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Page 6
Section 2 Operator Interface
H2S Removal Detailed View Popup: The H2S Removal Detailed View popup is accessed
by touching the box labeled H2S Removal Touch for Detailed View on the Overall Data
page. This popup contains a more detailed view of the 1-12S removal section of the
system and all of its associated transmitters and valves. Solenoid valves will illuminate
green when open while actuated valves will display green when open, red when closed,
and yellow when transitioning. Level switches LSL-941, 942, 943, and 943 [Unison LS
701, 702, 703, 704] display blue and will illuminate in red if the condensate level gets
too high in their corresponding vessel.
H2S REMOVAL DETAILED WEW ° v`
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VA 701 301 FLT"1 VA 702 VA 703 iET VA 794 HEATER
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Chiller Data: The Chiller Data page is accessed by touching the page navigation icon
labeled Chiller Data. This page contains temperature, pressure, and digital 1/0 data from
both chillers.The digital data for each chiller is available by pressing the Digital Data
navigation icon for the corresponding chiller.
CHILLER DATA
COMP 9T2-1 TEMPERATURE 1 PRESSUREINFORMATION
GLYCOL SUPPLY TEMPERATURE `F
GLYCOL RETURN TEMPERATURE °F
GLYCOL SUPPLY TEMPERATURE SETPOINT -F
TAL AMBIENT AIR TEMPERATURE °F
CIRCUIT#1 HEAD PRESSURE ®PSI
CIRCUIT#2 HEAD PRESSURE®PSI
COMP 9T&2 TEMPERATURE I PRESSURE tNFORMATION
GLYCOL SUPPLY TEMPERATURE `F
GLYCOL RETURN TEMPERATURE °F
GLYCOL SUPPLY TEMPERATURE SETPOINT °F
AMBIENT AIR TEMPERATURE °F
CIRCUIT#1 HEAD PRESSURE ®PSI
� CIRCUIT#2 HEAD PRESSURE ®PSI
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Section 2 Operator Interface Page 7
List Data: The list data pages are accessed by touching the page navigation icons
labeled List Data TempJPressfMisc. These pages contain a variety of data indicators laid
out in a list format. Each indicator is labeled with a descriptive name as well as a
component identifier. The component identifier consists of two or three letters
followed by a number. To physically locate each component on the system, this
identifier can be cross referenced to the P+ID drawing 3G-243-X-01 included in Section
7.
TEMPERATUR€DATA
.CONTROL PANEL TEMP(TT 31) `F \
GLYCOL SUPPLY TEMP(TIT 141) -- `F
SYSTEM INLETGAS TEMP(TIT301) °F
H2S REMOVAL INLET GAS TEMP(TIT 302) -- 'F
WS FILTER FIT 301 TEMP(TIT 303) °F
H2S F1LTER FL 302 TEMP(TIT 304) °F
H2S FILTER FL 3O3 TEMP(TIT W5) 'F
HIS FILTER FLT 3"TEMP(TIT 3(t8) °F '.
GAS BLOWER 331 DISCHARGE TEMP(TIT 331) °F
GAS SLOWER 332 DISCHARGE TEMP(TIT 332) - 'F
W 340INLET GAS TEMP(TIT 340) °F
HX 30 DISCHARGE GAS TEMP(TIT 341) °F
GAS DEW POINT TEMP(71T 342) °F
GAS BEHEAD I DISCHARGE TEMP(TIT 343) 'F
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' PRESSURE DATA
GAS BLOWER 331 INLET PRESSURE(PIT 321) 's+WC
INLET FILTER FL 321 DIFFERENTIAL PRESSURE(PDIT321) 1"WC
GAS BLOWER 332 tNLET PRESSURE(PIT 3E2) I"WC
XVLEF RLTER FL7322 DIFFERENTIAL PRESSURE(pDIT322) enWC
GAS SLOWER DISCHARGE PRESSURE(PIT 331) PSI
DISCHARGE FILTER FLT 351 DIFFERENTIAL PRESSURE(POIT 351) inwC
SYSTEM GAS DISCHARGE PRESSURE(PIT 351) PSI
0
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i @SCELLANEDUS DATA_
GAS H2S CONTENT(GAT 341) PPS IGS
EFFLUENT WATER FLOW(FIT 141) - GPM -
CBD RET
GAS SLOWER 331 VFD SPEED(VFD 331); NN:N `HZ
GAS BLOWER 332 VFD SPEED(VFD 332) XN.I! p `)HZ
EFFLUENT WATER FLOW CONTROL VALVE POS7I0H(VM 141) %OPEN _
HEATING GLYCOL BYPASS VALVE POSITION(VM 301) #OPEN
GAS RECIRCULATION VALVE POSITION(VM 351) %OPEN
ia� Section 2 Operator Interface Page 8
Trends: The trends pages are accessed by touching the navigation icon labeled Trends.
This opens the first of the 3 available trends, Discharge Pressure Trend, HX 301
Temperature Trend, and HX 340 Temperature Trend.
Discharge Pressure Trend: Discharge Pressure Trend is a graphical
representation of the VFD speed command and return, the recirculation valve
command and return position, discharge pressure, and discharge pressure set
point.
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HX 301 Temperature Trend: HX 301 Temperature Trend displays the relationship
between MV-932-1 [Unison VM 301] command and return position, TIT-940-B
[Unison TIT 3021 temperature, and the temperature set point. ��
H V 301 TEMPERATURE TREND
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Section 2 Operator Interface Page 9
HX 340 Temperature Trend: HX 340 Temperature Trend displays the relationship :
between GLV-954 [Unison VM 141] command and return position, TIT-954
[Unison TIT 3411 temperature, the temperature set point, and the water flow at
FIT-954 [Unison FIT 141].
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System Settings Pages:
System Settings 1: The Settings 1 page, accessed by touching the page
navigation icon System Settings 1 in the header bar, displays user configurable
set points and controls for the gas conditioning system.
Discharge Pressure Set Point:The system's discharge operating pressure.
Change this up or down to increase or decrease the pressure at PIT-966
[Unison PIT 351].
HX-940 Gas Discharge Temperature Set Point:The gas temperature after
traveling through HX-940. Change this up or down to increase or decrease
the gas temperature at TIT-940-B [Unison TIT 302]. IN
HX-954 Gas Discharge Temperature Set Point:The gas temperature after
traveling through HX-954. Change this up or down to increase or decrease
the gas temperature at TIT-954 [Unison TIT 341].
Tag Display: Switches the device designators from Unison's standard naming
and numbering to the site's naming and numbering.
Section 2 Operator Interface
Page 10
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System Settings 2: The Settings 2 page, accessed by touching the page
navigation icon System Settings 2 in the header bar, displays user configurable
set points and controls for the gas conditioning system.
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Gas Blower Selection Switch: Used to manually select which blower to run. .
Blower EnableMisable Switch:Touch to enable or disable to blower from
being operated. Note: This only takes the blower out of operation via the
controller; it does not mean it is locked out.
Blower Switching Method: Select how blower selection is handled in the
PLC.
Hand: The blowers will not alternate unless an operator manually
changes which blower to run
Run-Time: The blowers will switch based on run-time. The blower with
the lower run-time will start.
Alternate: The blowers will switch after every start.
Blower Status: Displays the current status of the blower.
Disabled: The blower is disabled in the PLC and will not run.
Available-Standby: In this state the blower is available to run but is not
selected to.
Available-Set To Run: The blower is available and will run the next time
the system is started.
Section 2 Operator Interface Page 11
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Running: The selected blower is running fault free. '
VFD Not in Auto: The VFD for the blower is not in auto.
Chiller Selection Switch: Used to manually select which chiller to run.
Chiller EnablefDisable Switch:Touch to enable or disable to chiller from
being operated. Note: This only takes the chiller out of operation via they
controller; it does not mean it is locked out.
Chiller Switching Method: Select how chiller selection is handled in the PLC.
Hand: The chillers will not alternate unless an operator manually ;
changes which chiller to run .
Run-Time: The chillers will switch based on run-time. The chiller with the
,
lower run-time will start.
Alternate: The chillers will switch after every start.
ChilierStatus: Displays the current status of the chiller.
Disabled: The chiller is disabled in the PLC and will not run. �
Lag-Standby: In this state the chiller is available to run but is not
selected to. If the lead chiller faults the lag chiller will start.
Lead-Standby: In this state the chiller is available to run but is not
selected to.
Running: The selected chiller is running fault free.
Faulted: The chiller has generated a fault and will shut down.
Gas Analyzer: Enables or disables the H2S analyzer. This can be used to
disable the analyzer for calibration while the system is running.
Gas Analyzer Purge Time: Sets the amount of time gas needs to flow through
the analyzer before sample readings are accepted.
5VH-95a ison VS 3411 HOA: Hand j Off j Auto controls for the H2S
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analyzer shutoff solenoid.
Section 2 Operator Interface Page 12
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System Settings 3: The Settings 3 page, accessed by touching the page
navigation icon System Settings 3 in the header bar, displays user configurable
controls for the gas conditioning system.
H2S Removal Vessel Cooling Water Injection Temperature Set Point: Change
this set point to increase or decrease the temperature at which the water
injection solenoid valves open to flood the vessels with water.
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H2S Removal Vessel Heater Temperature Set Point:The temperature that
the H2S removal vessels will be kept at via heating water circulation.
H2S Removal Vessel Heater Temperature Deadband: Change this set point
to increase or decrease the allowable temperature change in the H2S
removal vessels.
H2S Removal Vessel Wet-Down Duration: Changes how long water is
sprayed on the H2S removal media.
H2S Removal Vessel Wet-Down Cycle Time: Changes how often water is
sprayed on the H2S removal media.
Water Injection Solenoid Controls: Hand J Off/Auto controls for the H2S
vessel water injection solenoids.
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Section 2 Operator Interface Page 13
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H2S REMOVAL VESSEL COOL94G WATER
INJECTION T'EMPERAnJRE SET'POINT i°F
Tff _
H2S REMOVAL VESSEL.HEATER TTT2
7EMRERATURESETPt91NT F AT Tn'-d3
WS REMOVAL VESSEL HEATER TIT 96 i
TEMPERATURE DEADBAND ' F
H2S REMOVAL VESSEL MEDIA €SECONDS
WET-DOWNDURATJON
H2S REMOVAL VESSEL MEDIA'
WST-DOWN CYCLE TIME MINUTES
WATER INJECTION SOLENOID CONTROLS
VS 801 vs 112 sv-saa
System Settings 4: The Settings 4 page, accessed by touching the page
navigation icon System Settings 4 in the header bar, displays user configurable
controls for the gas conditioning system.
Motorlog Commands:Touching any jog icon causes the respective
component to run for short period of time. The system must be in standby
state to use the jog command. It should also be noted that after a jog
command is issued, there is a 5 second delay before the same jog command
will be accepted again. This allows the motor to come to a complete stop
before re-starting. This command is useful for checking motor rotation on
initial startup and to make sure the component is operational.
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Section 2 Operator Interface Page 14
-
New Alarms Page: When an alarm occurs the New Alarms page will automatically display on
the HMI. The NewAiarms page contains a Reset icon, a Hide icon, and NewAlarm Status
indicators for each of the five most recent un-acknowledged alarms. To acknowledge an alarm,
touch the Reset icon or the Hide icon. Both of these commands will acknowledge all current
alarms and will also remove the New Alarms page from the display of the HMI. Refer to Section
5, Alarm Procedures, for more information.
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Current, new, and historical alarm status indicators: Each Alarm Status indicator
consists of an Alarm Code indicator, an Alarm Description indicator, an Alarm
Component indicator, a Time Stamp indicator, and a Date Stamp indicator. These alarm
components can be referenced to the Alarm List in Section 5.
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## CODE DESCRIPTION COMPONENT TIME DATE
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Alarm code indicators: Displays a code from 0 to 99999 for the given alarm.
Each alarm name has a respective alarm code. Code 99 indicates that no alarms
are currently present for that indicator.
Alarm description indicators: Displays a description of the given alarm.
Alarm component indicators: Displays the component which generated they
alarm. The component can usually be referenced to the P+ID drawings to locate
Section 2 Operator Interface Page 15
the component physically in the system.
Date stamp and time stamp indicators: Displays the date and time at which the
alarm occurred. °
Reset command icon: Acknowledges and resets all system alarms in the PLC
program. This will also remove the NewAlarms page from the HMI.
Hide command icon: Acknowledges new system alarms and removes the New
Alarms page from the HMI, but will not reset system alarm conditions in the PLC
program.
Alarm History Pages: The Alarm History pages can be accessed by touching the page navigation
icon labeled Alarm History. The Alarm History page contains 24 Historical Alarm Status
indicators. Refer to the Current, New, and Historical Alarm Status indicators description found
under the New Alarms page heading in this section of the manual for details a bout Alarm Status
indicators. The Alarm History 1 indicator holds information about the most recent alarm. The
Alarm History 2 indicator holds information about the second most recent alarm and so on. As
each new alarm is logged all of the information in the history is bumped one position down the
list. After 24 alarms have been accumulated, any new alarm will bump the oldest alarm from
the end of the list and it cannot be retrieved. If there are not enough alarms to fill the list the
empty indicators will display alarm code 99, No Alarms and the Time Stamp and Date Stamp
indicators will show all O's. Refer to Section S for more information regarding alarms. ._
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Section 2 Operator Interface Page 16
Clock Set & PLC Status Page: The Clock Set& PLC Status page can be accessed by touching the
page navigation icon labeled Clock Set& PLC. This screen has read only indicator icons that
display the status of the PLC alarms along with set point icons used to set the PLC clock.
GLOGX SET&PLG STATUS
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MCR Off Banner: A full screen banner will appear when the master control relay (MCR) is off
and will automatically hide itself when the MCR is energized.
MASTER CONTROL RELAY IS OFF
PULL OUT ALL"MASTER STOP"BUTTONS
Section 2 Operator Interface Page 17
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