TSI Instruments 8682-KF1 Manual Supplement

Manual Supplement
Model Number: 8682-KF1
Product/System Title: Adaptive Offset Controller with 2-Point
Flow Calibration and Reheat Control
Contents of this manual supplement include:
1) How to use this Manual Supplement
2) Sequence of operation
3) Menu item descriptions
menu structure drawing
description of software additions
listing of software deletions
4) Modbus Communications
5) Wiring Diagrams
How to Use This Manual Supplement
This supplement replaces pages 13-36, Menu and Menu Items and pages 50-51, Appendix B Wiring Information of the Model 8682 SUREFLOW Adaptive Offset Controller, Operation Service Manual (P/N 1980288).
This supplement describes the menus and menu items used to configure and program the controller and how to wire each component.
Sequence of Operation
The Model 8682-KF1 uses the standard Model 8682 pressure and tracking control algorithm. The Model 8682-KF1 also features temperature control. The temperature control scheme provides modulation of supply volume for cooling and modulation of a reheat valve for heating.
The Model 8682-KF1 laboratory control system uses a through-the-wall room pressure sensor to measure pressure differential (direct pressure measurement) between the laboratory and corridor (reference space), and receives temperature information from the thermostat (0-10 VDC, 50-85°F). The pressure sensor is located on the corridor (reference space) side of the wall. The Model 8682-KF1 laboratory controller continuously monitors the thermostat information. The Model 8682-KF1 control algorithm modulates supply and general exhaust air flows to provide adequate fume hood replacement air while maintaining room pressure differential and temperature control.
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Pressure Control Sequence:
The Model 8682-KF1 receives the pressure differential signal from the pressure sensor. If pressure is at set point, the control algorithm maintains the offset. If pressure is not at set point, the offset value is changed until pressure is maintained, or the minimum or maximum offset value is reached. If the offset value:
Increases, the supply air is reduced until one of 3 events occur:
Pressure set point is reached. The Model 8682-KF1 maintains the new offset.
The offset range is exceeded. The offset will be at maximum attempting to reach
Supply air minimum is reached. The general exhaust begins to open (was
Decreases, the supply air increases until one of 3 events occur:
Pressure set point is reached. The Model 8682-KF1 maintains the new offset.
The offset range is exceeded. The offset will be at minimum attempting to reach
Supply air maximum is reached. The alarm will trigger to inform the user
NOTE: The pressure differential is a slow secondary control loop. The system initially starts
with a calculated offset value and then slowly adjusts the offset value to maintain pressure differential.
The Model 8682-KF1 continuously monitors and displays pressure differential between the laboratory and corridor (reference space). When the pressure differential is adequate, a green light indicates a safe pressure differential is being maintained. Room pressure alarm set points, configured into the controller, activate a red light and audible alarm when the room pressure becomes insufficient or too great. In addition to a local indication of room pressure, alarm contacts and RS 485 communications may be used to provide extensive information to a building management system.
Temperature Control Sequence:
The 8682-KF1 receives a temperature input from a 0-10 volt (50-85°F) thermostat. The Model 8682-KF1 controller maintains temperature control by:
(1) Controlling supply and general exhaust for ventilation and cooling (2) Controlling the reheat coil for heating
Manual Supplement
pressure set point. An alarm will trigger to inform the user pressure differential is not being maintained.
closed) to maintain pressure differential.
pressure set point. An alarm will trigger to inform the user pressure differential is not being maintained.
pressure differential is not being maintained.
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The Model 8682-KF1 has three supply flow minimum set points. The ventilation set point is the minimum flow volume required to meet ventilation needs of the laboratory (ACPH). The temperature supply set point (TEMP MIN) is the minimum flow required to meet temperature needs of the laboratory. The unoccupied set point is the minimum flow required when the lab is not occupied. All of these set points are configurable.
The Model 8682-KF1 continuously compares the temperature set point to the actual space
temperature. If set point is being maintained, no changes are made. If set point is not being maintained, and the space temperature is rising the controller will first modulate the reheat valve closed. If the reheat valve is closed the controller will then increase the supply volume to meet the cooling demand. If the space temperature is falling the controller will first reduce the supply volume. If the supply volume reaches its minimum, ventilation or hood demand, the controller will then modulate the reheat coil open to meet the heating demand.
If the general exhaust is in the closed position and fume hood loads require additional replacement air, the Model 8682-KF1 will override ventilation or temperature set points to modulate supply for pressurization control. Temperature will then be controlled by reheat in this sequence.
Manual Supplement
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Manual Supplement
Menu and Menu Items
UREFLOW
The S This section describes all of the menu items available to program and change. Changing any item is accomplished by using the keypad, or if communications are installed, through the RS-485 Communications port. If you are unfamiliar with the keystroke procedure please see Programming Software for a detailed explanation. This section provides the following information:
- Complete list of menu and all menu items.
- Gives the menu or programming name.
- Defines each menu item’s function; what it does, how it does it, etc..
- Gives the range of values that can be programmed.
- Gives default item value (how it shipped from factory).
The menus covered in this section are divided into groups of related items to ease programming. As an example all set points are in one menu, alarm information in another, etc. The manual follows the menus as programmed in the controller. The menu items are always grouped by menu and then listed in menu item order, not alphabetical order. Figure 1, on the next 2 pages, shows a chart of all the Model 8682-KF1 controller menu items.
SETPOINTS
SET POINT
REM SETPOINT
VENT MIN SET TEMP MIN SET UNOCCUPY SET MAX SUP SET MIN EXH SET MIN OFFSET MAX OFFSET
TEMP SETP
ACCESS CODE
CONTROL
SPEED SENSITIVITY CONTROL SIG
TEMP CONTROL
KC VALUE TI VALUE KC OFFSET
TEMP KC VAL
ACCESS CODE
is a very versatile device that can be configured to meet your specific application.
ALARM
LOW ALARM HIGH ALARM
REM LOW ALM REM HIGH ALM
MIN SUP ALM
MAX EXH ALM
ALARM RESET AUDIBLE ALM ALARM DELAY MUTE TIMEOUT ACCESS CODE
SYSTEM FLOW
TOT SUP FLOW TOT EXH FLOW OFFSET VALUE SUP SET POINT EXH SET POINT ACPH ACCESS CODE
CONFIGURE
DISPLAY AVG UNITS ROOM VOLUME EXH CONFIG ACCESS CODE
FLOW CHECK
HD1 FLOW IN HD2 FLOW IN HD3 FLOW IN HD4 FLOW IN HD5 FLOW IN HD6 FLOW IN HD7 FLOW IN EX1 FLOW IN EX2 FLOW IN SP1 FLOW IN SP2 FLOW IN
SP3 FLOW IN SP4 FLOW IN
ACCESS CODE
CALIBRATION
SENSOR ZERO SENSOR SPAN ELEVATION
TEMP CAL
ACCESS CODE
DIAGNOSTICS
CONTROL SUP CONTROL EXH
CONTROL TEMP
SENSOR INPUT SENSOR STAT
TEMP INPUT OCCUPANT SWT KEY SWITCH
LOW ALM REL HIGH ALM REL LOW SUP REL
HIGH EXH REL
PRESS AOUT SUPPLY AOUT EXHAUST AOUT ACCESS CODE
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INTERFACE
NET PROTOCOL NET ADDRESS OUTPUT RANGE OUTPUT SIG MAX FLOW OUT ACCESS CODE
Manual Supplement
SUPPLY FLOW
SP1 DCT AREA SP2 DCT AREA
SP3 DCT AREA SP4 DCT AREA
SP1 FLO ZERO SP2 FLO ZERO
SP3 FLO ZERO SP4 FLO ZERO
FLO STA TYPE
XDCR OUT
TOP VELOCITY
SP LOW SETP SP HIGH SETP SP1 LOW CAL SP1 HIGH CAL SP2 LOW CAL SP2 HIGH CAL SP3 LOW CAL SP3 HIGH CAL SP4 LOW CAL SP4 HIGH CAL RESET CAL ACCESS CODE
HOOD FLOW
HD1 DCT AREA HD2 DUCT AREA HD3 DUCT AREA HD4 DUCT AREA HD5 DUCT AREA HD6 DUCT AREA HD7 DUCT AREA HD1 FLO ZERO HD2 FLO ZERO HD3 FLO ZERO HD4 FLO ZERO HD5 FLO ZERO HD6 FLO ZERO HD7 FLO ZERO FLO STA TYPE
XDCR OUT
TOP VELOCITY
HD1 LOW CAL HD1 HIGH CAL HD2 LOW CAL HD2 HIGH CAL HD3 LOW CAL HD3 HIGH CAL HD4 LOW CAL HD4 HIGH CAL HD5 LOW CAL HD5 HIGH CAL HD6 LOW CAL HD6 HIGH CAL HD7 LOW CAL HD7 HIGH CAL MIN HD1 FLOW MIN HD2 FLOW MIN HD3 FLOW MIN HD4 FLOW MIN HD5 FLOW MIN HD6 FLOW MIN HD7 FLOW RESET CAL ACCESS CODE
EXHAUST FLOW
EX1 DCT AREA EX2 DCT AREA EX1 FLO ZERO EX2 FLO ZERO FLO STA TYPE
XDCR OUT
TOP VELOCITY
EX LOW SETP EX HIGH SETP EX1 LOW CAL EX1 HIGH CAL EX2 LOW CAL EX2 HIGH CAL RESET CAL ACCESS CODE
Figure 1: Menu Items - Model 8682-KF1 Controller
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Manual Supplement
Software Additions
The Model 8682-KF1 has additional programmable software items. The unit works similar to a standard model, with several additions.
SET POINT MENU
SOFTWARE
NAME
REM SETPOINT The REM SET POINT item sets the pressure set point
TEMP SETP
ITEM DESCRIPTION
upon activation of a changeover switch.
Pressure Differential is not maintained by direct pressure control; i.e. modulating dampers in response to pressure changes. The pressure signal is an AOC input, that is used to calculate the required air flow offset value. The calculated offset value changes the supply (or exhaust) flow volume which changes the pressure differential.
When the calculated offset value is less than the MIN OFFSET or greater than the MAX OFFSET, pressure control will not be maintained. The TEMP SETP item sets the temperature set point of the space.
ITEM RANGE
(DEFAULT VALUE)
-0.19500 “H2O to +0.19500 “ H2O
(-0.0020 “ H2O)
50 °F - 85 °F
(68 °F)
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ALARM MENU
SOFTWARE
NAME
REM LOW ALM
REM HIGH ALM
MAX EXH ALM
The REM LOW ALM menu item sets the remote low pressure alarm set point. A low alarm condition is defined as when the room pressure falls below or goes in the opposite direction of the REM LOW ALM set point. The REM LOW ALM is only activated when the controller is at the REM SET POINT. The REM HIGH ALM menu item sets the remote high pressure alarm set point. A high alarm condition is defined as when the room pressure exceeds (is more positive or more negative than) the REM HIGH ALM set point. The REM HIGH ALM is only activated when the controller is at the REM SET POINT. The MAX EXH ALM sets the maximum exhaust flow alarm set point. A maximum exhaust alarm is defined as when the total exhaust exceeds the MAX EXH ALM set point.
Note: The Model 8682-KF1 has a relay contact that
corresponds to the MAX EXH ALM. This alarm relay replaces the LOW EXHAUST FLOW ALARM relay (Digital Alarm Output 2), (AOC, pins 56 and 57).
CALIBRATION MENU
SOFTWARE NAME
TEMP CAL
The TEMP CAL is used to enter the actual space temperature. This adjustment offsets the temperature sensor curve.
Manual Supplement
ITEM DESCRIPTION
ITEM DESCRIPTION
ITEM RANGE
ITEM RANGE
(DEFAULT VALUE)
OFF
-0.18500 “ H2O to +0.18500 “ H2O
(OFF)
OFF
-0.18500 “ H2O to +0.18500 “ H2O
(OFF)
OFF
0 - 30,000 CFM
(OFF)
50 °F - 85 °F
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CONTROL MENU
SOFTWARE
NAME
TEMP
CONTROL
TEMP KC VAL
The TEMP CONTROL item determines the control signal’s output direction. As an example: If the control system closes the reheat valve instead of opening this valve, this option will reverse the control signal to now open the valve. The TEMP KC VAL item provides the user with the ability to manually change the control loop speed.
The TEMP KC VALUE item is used to read and change the gain control coefficient. When this item is entered, a value for Kc is indicated on the display. If the S is not controlling correctly, the Kc gain control coefficient may need adjusting. Decreasing Kc will slow the control system down, which will increase stability. Increasing Kc will increase the control system speed, which may cause system instability.
Manual Supplement
ITEM DESCRIPTION
UREFLOW
ITEM RANGE
(DEFAULT VALUE)
DIRECT OR REVERSE
(DIRECT)
0 to 1000
(100)
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FLOW CHECK MENU
SOFTWARE
NAME
SP3 FLOW IN SP4 FLOW IN
The SP# FLOW IN menu item displays the current supply air flow. This item is a diagnostics tool used to compare the supply flow to a traverse of the duct work. If flow error is greater than 10%, adjust the SP# DUCT AREA until the error is within 10%. In addition, summing the SP# FLOW IN should equal the TOT SUP FLOW.
When a volt meter is hooked to the flow station output, a voltage should be displayed. The exact voltage displayed is relatively unimportant. It is more important that the voltage is changing, which indicates the flow station is working correctly. For a 0.5 “H2O transducer,
Manual Supplement
ITEM DESCRIPTION
0 volts displayed equals zero flow 5 volts displayed equals 2832 ft/min x duct area
(ft2) - pressure based flow station
5 volts displayed equals TOP VELOCITY x duct
area (ft2) - linear based flow station
ITEM RANGE
(DEFAULT VALUE)
NONE: Read only value
(NONE)
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DIAGNOSTICS MENU
SOFTWARE
NAME
CONTROL
TEMP
TEMP INPUT
OCCUPANT
SWT
KEY SWITCH
HIGH EXH REL
The CONTROL TEMP item manually changes the control output signal to the reheat valve. When this item is entered, a number between 0 and 255 will be shown on the display indicating the control output value. Pressing the ▲/▼ keys changes the count on the display. Pressing the key increases the displayed value, while pressing the key decreases the displayed value. The reheat control valve should modulate as the number changes. Depending on the valve, 0 or 255 is full open. A count of 150 should position the valve approximately 1/2 open.
WARNING: The CONTROL TEMP function overrides the AOC control signal. Adequate space temperature will NOT be maintained while in this item. The TEMP INPUT item shows the current temperature reading. The OCCUPANT SWT item shows the status of the occupancy switch input. This can be used to test the occupancy switch connection. The KEY SWITCH item shows the status of the key switch, which selects either the main or the remote set points. If the KEY SWITCH item displays OPEN, then the main set points are in use. If the KEY SWITCH item displays CLOSED, then the remote set points are used. The HIGH EXH REL item is used to change the state of the high exhaust relay. When the HIGH EXH REL is entered, the display will indicate either OPEN or CLOSED. The ▲/▼ keys are used to toggle the state of the relay. The key will OPEN the alarm contact. Pressing the key will CLOSE the alarm contact. When the contact is closed, the relay is in an alarm condition.
Manual Supplement
ITEM DESCRIPTION
ITEM RANGE
0 - 255
NORMAL UNOCCUPIED
OPEN CLOSED
OPEN CLOSED
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SUPPLY FLOW MENU
SOFTWARE
NAME
SP3 DUCT AREA SP4 DUCT AREA
SP3 FLO ZERO SP4 FLO ZERO
XDCR OUT
SP LOW SETP
SP HIGH SETP
The SP# DUCT AREA item inputs the supply duct size. The duct size is needed to compute the flow out of the supply duct. This item requires a flow station to be mounted in each supply duct.
If the DIM displays English units, area must be entered in square feet. If metric units are displayed, area must be entered in square meters.
The SP# FLO ZERO item establishes the flow station zero flow point. A zero or no flow point needs to be established in order to obtain a correct flow measurement output (see Calibration section).
All pressure based flow stations need to have a SP# FLO ZERO established on initial set up. Linear flow stations with a 1-5 VDC output also need to have a SP# FLO ZERO established. Linear flow stations with a 0-5 VDC output do not need a SP# FLO ZERO. The XDCR OUT menu item allows the user to select the maximum range of the pressure transducer used with the flow stations.
The SP LOW SETP menu item sets the supply damper position for supply low flow calibration. The SP HIGH SETP menu item sets the supply damper position for the supply high flow calibration.
Manual Supplement
ITEM DESCRIPTION
ITEM RANGE
(DEFAULT)
0 - 10 ft2
0 - 0.95 m2
(0)
The DIM does not compute duct area. The area must first
be calculated and then entered into
the unit.
NONE
0.1, 0.2, 0.3, 0.4,
0.5 “H2O
25, 50, 75, 100, 125
pascals
(0.5 in H2O
125 pascals)
0-255
0-255
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SUPPLY FLOW MENU
SOFTWARE
NAME
SP1 LOW CAL SP2 LOW CAL SP3 LOW CAL SP4 LOW CAL
SP1 HIGH CAL SP2 HIGH CAL SP3 HIGH CAL SP4 HIGH CAL
RESET CAL
The SP# LOW CAL menu items display the currently measured supply flow rate and the calibrated value for that supply flow. The supply dampers will move to the SP LOW SETP damper position for the low calibration. The calibrated supply flow can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data. The SP# HIGH CAL menu items display the currently measured supply flow rate and the calibrated value for that supply flow. The supply dampers will move to the SP HIGH SETP damper position for the low calibration. The calibrated supply flow can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data. The RESET CAL menu item zeroes out the calibration adjustments for the 4 supply flows. When this menu item is entered, the 8682-KF1 will prompt the user to verify that they want to do this. Press the SELECT key to reset the calibrations, and the MENU key to reject it.
Manual Supplement
ITEM DESCRIPTION
ITEM RANGE
(DEFAULT)
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HOOD FLOW MENU
SOFTWARE
NAME
XDCR OUT
HD1 LOW CAL HD2 LOW CAL HD3 LOW CAL HD4 LOW CAL HD5 LOW CAL HD6 LOW CAL
HD7 LOW CAL HD1 HIGH CAL HD2 HIGH CAL HD3 HIGH CAL HD4 HIGH CAL HD5 HIGH CAL HD6 HIGH CAL HD7 HIGH CAL
MIN HD1 FLOW MIN HD2 FLOW MIN HD3 FLOW MIN HD4 FLOW MIN HD5 FLOW MIN HD6 FLOW MIN HD7 FLOW
RESET CAL
The XDCR OUT menu item allows the user to select the maximum range of the pressure transducer used with the flow stations.
The HD# LOW CAL menu items display the currently measured fume hood flow rate and the calibrated value for that fume hood flow. The calibrated hood flow can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data.
The HD# HIGH CAL menu items display the currently measured fume hood flow rate and the calibrated value for that fume hood flow. The calibrated hood flow can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data.
The MIN HD# FLOW menu items adjust the minimum flow value for each fume hood input. Use this menu item if the fume hood flow measurements are too low when the sash is closed.
The RESET CAL menu item zeroes out the calibration adjustments for the 7 hood flows. When this menu item is entered, the 8682-KF1 will prompt the user to verify that they want to do this. Press the SELECT key to reset the calibrations, and the MENU key to reject it.
Manual Supplement
ITEM DESCRIPTION
ITEM RANGE
(DEFAULT)
0.1, 0.2, 0.3, 0.4,
0.5 “H2O
25, 50, 75, 100, 125
pascals
(0.5 in H2O
125 pascals)
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Manual Supplement
EXHAUST FLOW MENU
SOFTWARE
NAME
XDCR OUT
EX LOW SETP
EX HIGH SETP
EX1 LOW CAL
EX2 LOW CAL
EX1 HIGH CAL EX2 HIGH CAL
RESET CAL
The XDCR OUT menu item allows the user to select the maximum range of the pressure transducer used with the flow stations.
The EX LOW SETP menu item sets the general exhaust damper position for general exhaust low flow calibration. The EX HIGH SETP menu item sets the general exhaust damper position for the general exhaust high flow calibration. The EX LOW CAL menu items display the currently measured general exhaust flow rate and the calibrated value for that general exhaust flow. The calibrated general exhaust can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data. The EX HIGH CAL menu items display the currently measured general exhaust flow rate and the calibrated value for that general exhaust flow. The calibrated general exhaust flow can be adjusted using the ▲/▼ keys to make it match a reference measurement. Pressing the SELECT key will save the new calibration data. The RESET CAL menu item zeroes out the calibration adjustments for the 7 hood flows. When this menu item is entered, the 8682-KF1 will prompt the user to verify that they want to do this. Press the SELECT key to reset the calibrations, and the MENU key to reject it.
ITEM DESCRIPTION
ITEM RANGE
(DEFAULT)
0.1, 0.2, 0.3, 0.4,
0.5 “H2O
25, 50, 75, 100, 125
pascals
(0.5 in H2O
125 pascals)
0-255
0-255
Software Deletions
The following menu items have been deleted from the unit:
SETPOINTS menu: TEMP LOW TEMP HIGH ALARM menu: MIN EXH ALM DIAGNOSTICS menu LOW EXH REL
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Manual Supplement
MODBUS Communications
Modbus communications are installed in the Model 8682-KF1 adaptive offset room pressure controllers. This document provides the technical information needed to communicate between the host DDC system and the Model 8682-KF1 units. This document assumes the programmer is familiar with Modbus protocol. Further technical assistance is available from TSI if your question is related to TSI interfacing to a DDC system. If you need further information regarding Modbus programming in general, please contact:
Modicon Incorporated One High Street North Andover, MA 01845
Phone (508) 794-0800 The Modbus protocol utilizes the RTU format for data transfer and Error Checking. Check the Modicon Modbus Protocol Reference Guide (PI-Mbus-300) for more information on CRC generation and message structures.
The messages are sent at 9600 baud with 1 start bit, 8 data bits, and 2 stop bits. Do not use the parity bit. The system is set up as a master slave network. The TSI units act as slaves and respond to messages when their correct address is polled.
Blocks of data can be written or read from each device. Using a block format will speed up the time for the data transfer. The size of the blocks is limited to 20 bytes. This means the maximum message length that can be transferred is 20 bytes. The typical response time of the device is around 0.05 seconds with a maximum of 0.1 seconds.
Unique to TSI The list of variable addresses shown below skips some numbers in the sequence due to internal Model 8682-KF1 functions. This information is not useful to the DDC system and is therefore deleted. Skipping numbers in the sequence will not cause any communication problems.
All variables are outputted in English units: ft/min, CFM, or inches H20. The room pressure control setpoints and alarms are stored in ft/min. The DDC system must convert the value to inches of water if that is desired. The equation is given below.
Pressure in Inches H2O = 6.2*10-8*(Velocity in ft/min / .836)2
XRAM Variables These variables can be read using Modbus command 03 Read Holding Registers. They can be written to using Modbus command 16 Preset Multiple Regs. Many of these variables are the same “menu items” that are configured from the SUREFLOW keypad. The calibration and control items are not accessible from the DDC system. This is for safety reasons, since each room is individually setup for maximum performance.
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Variable Name Variable
Software Version Controller Type
Emergency Mode 2 Emergency Mode Control
Control Mode 3 Control mode of device.
Status Index
Room Velocity Room Pressure
Total Supply Flow Total Exhaust Flow Offset Setpoint Air changes per hour
Fume Hood 1 Flow
Fume Hood 2 Flow
Fume Hood 3 Flow
Fume Hood 4 Flow
Manual Supplement
8682-KF1 Variable List
Input Provided to Master
Address
0 Current Software Version 1.00 = 100 1 Controller Model Number 8682
4 Status of S
5 Velocity of room pressure Displayed in ft/min. 6 Room Pressure Displayed in inches H2O.
7 Total supply into laboratory Displayed in CFM. 8 Total exhaust out of laboratory Displayed in CFM.
9 Current offset setpoint Displayed in CFM. 10 Calculated room air changes Displayed in number per
11 Flow measured by flow station
12 Flow measured by flow station
13 Flow measured by flow station
14 Flow measured by flow station
System
Write only variable.
UREFLOW
connected to hood input #1.
connected to hood input #2.
connected to hood input #3.
connected to hood input #4.
device 0 Normal
Integer DDC system receives
0 Leave emergency mode 1 Enter emergency mode 0 Normal 1 Unoccupied (Setback)
1 Dim Data Error 2 Alarm = Low Pressure 3 Alarm = High Pressure 4 Alarm = Min Supply 5 Alarm = Max Exhaust 6 Data Error 7 Cal Error 8 Emergency Mode
Host DDC system must divide by 100,000 to report pressure correctly
hour. Host DDC system must divide value by 10 to report ACPH correctly. Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
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Variable Name Variable
Fume Hood 5 Flow
Fume Hood 6 Flow
Fume Hood 7 Flow
Exhaust 1 Flow
Exhaust 2 Flow
Supply 1 Flow
Supply 2 Flow
Supply 3 Flow
Supply 4 Flow
Pressure Setpoint 24 Pressure control setpoint Displayed in ft/min. Min Vent Setpoint Min Temp Setpoint Unoccupied Min Setpoint Low Alarm 28 Low pressure alarm setpoint Displayed in ft/min. High Alarm 29 High pressure alarm setpoint Displayed in ft/min. Min Supply Alarm Max Exhaust Alarm Min Offset Setpoint Max Offset Setpoint Max Supply Setpoint
Manual Supplement
Input Provided to Master
Address
15 Flow measured by flow station
16 Flow measured by flow station
17 Flow measured by flow station
18 Flow measured by flow station
19 Flow measured by flow station
20 Flow measured by flow station
21 Flow measured by flow station
22 Flow measured by flow station
23 Flow measured by flow station
25 Minimum flow setpoint for
26 Minimum flow setpoint for
27 Unoccupied (Setback) minimum
30 Minimum supply flow alarm Displayed in CFM.
31 Maximum general exhaust alarm Displayed in CFM.
32 Minimum offset setpoint Displayed in CFM.
33 Maximum offset setpoint Displayed in CFM.
34 Maximum supply setpoint Displayed in CFM.
System
connected to hood input #5.
connected to hood input #6.
connected to hood input #7.
connected to general exhaust input #1.
connected to general exhaust input #2.
connected to supply flow input #1
connected to supply flow input #2
connected to supply flow input #3
connected to supply flow input #4
ventilation.
temperature control.
flow setpoint.
Integer DDC system receives
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
Displayed in CFM.
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Variable Name Variable
Min Exhaust Setpoint Temp Setpoint 36 Temperature setpoint
Output Range 38 Room pressure analog output
Output Mode 39 Analog output signal 0 4-20 ma
Elevation 40 Elevation above sea level 0-10,000 feet. Displayed in
Hood 1 Duct Area 41 Duct area in square feet Host DDC system must
Hood 2 Duct Area 42 Duct area in square feet Host DDC system must
Hood 3 Duct Area 43 Duct area in square feet Host DDC system must
Hood 4 Duct Area 44 Duct area in square feet Host DDC system must
Hood 5 Duct Area 45 Duct area in square feet Host DDC system must
Hood 6 Duct Area 46 Duct area in square feet Host DDC system must
Hood 7 Duct Area 47 Duct area in square feet Host DDC system must
Exhaust 1 Duct Area
Exhaust 2 Duct Area
Supply 1 Duct Area
Manual Supplement
Input Provided to Master
Address
35 Minimum exhaust setpoint Displayed in CFM.
48 Duct area in square feet Host DDC system must
49 Duct area in square feet Host DDC system must
50 Duct area in square feet Host DDC system must
System
range
Integer DDC system receives
Displayed in °F 0 Low 1 High
1 0-10 volt
1,000 feet increments.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
divide value by 1,000 to report duct area correctly.
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Variable Name Variable
Supply 2 Duct Area
Room Volume 52 Room volume in cubic feet
Supply 3 Duct Area
Control Action 56 Control output signal direction 0 Reverse
Supply 4 Duct Area
Network Protocol 61 Network protocol for RS485
Network Address 62 Communication address of device Range is 1-247 Flow Output Range
Hood Flow Station Type Exhaust Flow Station Type Supply Flow Station Type Hood Top Velocity Exhaust Top Velocity Supply Top Velocity Exhaust Configuration Alarm Mode 103 Latched or unlatched alarms 0 Unlatched
Manual Supplement
Input Provided to Master
Address
51 Duct area in square feet Host DDC system must
53 Duct area in square feet Host DDC system must
60 Duct area in square feet Host DDC system must
87 Flow analog output range setting 0 1,000 CFM
96 Type of flow station being used
97 Type of flow station being used
98 Type of flow station being used
99 Fume hood maximum velocity
100 General exhaust maximum
101 Supply maximum velocity range
102 Configuration of exhaust duct
System
(needed or ACPH calculation)
communications
in fume hoods.
in general exhaust.
in supply.
range of flow station.
velocity range of flow station.
of flow station.
work.
Integer DDC system receives
divide value by 1,000 to report duct area correctly. Displayed in cubic feet.
divide value by 1,000 to report duct area correctly.
1 Direct
divide value by 1,000 to report duct area correctly. 0 Modbus 1 Cimetrics
1 5,000 CFM 2 10,000 CFM 3 20,000 CFM 5 50,000 CFM 0 Pressure based 1 Linear 0 Pressure based 1 Linear 0 Pressure based 1 Linear 0-5,000 ft/min
0-5,000 ft/min
0-5,000 ft/min
0 Unganged 1 Ganged
1 Latched
Project: Date: Page 19 of 23 Released 2/15/02
Variable Name Variable
Alarm Delay 104 Time delay before alarm activates Host DDC system must
Averaging Index 105 Display averaging period 0 .75 sec. 4 5 sec.
Units 106 Current pressure units displayed 0 Feet per minute
Audible Alarm 107 Audible alarm indication 0 Off
Mute Delay 108 Length of time alarm is muted
Set Code Enable 113 Setpoint menu access code enable 0 Off
Alarm Code Enable Configure igure Code Enable Cal Code Enable 116 Calibration menu access code
Control Code Enable System Code Enable Flow Code Enable Diag Code Enable 120 Diagnostic menu access code
Inter Code Enable 121 Interface menu access code
Hood Code Enable Exh Code Enable 123 Exhaust menu access code enable 0 Off
Manual Supplement
Input Provided to Master
Address
114 Alarm menu access code enable 0 Off
115 Configure menu access code
117 Control menu access code enable. 0 Off
118 System menu access code enable. 0 Off
119 Flow menu access code enable. 0 Off
122 Hood menu access code enable 0 Off
System
when mute key is pressed
enable.
enable.
enable.
enable
Integer DDC system receives
divide value by 10 to report alarm delay correctly.
1 1 sec. 5 10 sec. 2 2 sec. 6 20 sec. 3 3 sec. 7 40 sec.
1 meters per second 2 inches of H2O 3 Pascal 4 millimeters H2O
1 On Host DDC system must divide value by 600 to report mute delay correctly.
1 On
1 On 0 Off 1 On 0 Off 1 On
1 On
1 On
1 On 0 Off 1 On 0 Off 1 On
1 On
1 On
Project: Date: Page 20 of 23 Released 2/15/02
Manual Supplement
Variable Name Variable
Address
Input Provided to Master System
Integer DDC system receives
Sup Code Enable 124 Supply menu access code enable 0 Off
1 On
Temperature 337 Current temperature value
°F
*Note: Items in italics are read only variables.
EXAMPLE of 16 (10 Hex) Preset Multiple Regs function format: This example changes the minimum ventilation setpoint to 1000 CFM
QUERY RESPONSE
Field Name (Hex) Field Name (Hex) Slave Address 01 Slave Address 01 Function 10 Function 10 Starting Address Hi 00 Starting Address Hi 00 Starting Address Lo 19 Starting Address Lo 19 No. Of Registers Hi 00 No. of Registers Hi 00 No. Of Registers Lo 01 No. of Registers Lo 01 Data Value (High) 03 Error Check (CRC) -­Data Value (Low) E8 Error Check (CRC) --
Example of 03 Read Holding Registers function format: This example reads the total supply and total exhaust.
QUERY RESPONSE
Field Name (Hex) Field Name (Hex) Slave Address 01 Slave Address 01 Function 03 Function 03 Starting Address Hi 00 Byte Count 04 Starting Address Lo 07 Data Hi 03 No. Of Registers Hi 00 Data Lo 8E (1000 CFM) No. Of Registers Lo 02 Data Hi 04 Error Check (CRC) -- Data Lo B0 (1200 CFM) Error Check (CRC)
Project: Date: Page 21 of 23 Released 2/15/02
Manual Supplement
Wiring Diagrams
ADAPTIVE O FFS ET CONTRO LLER
+
1
DIGITAL INPUT 1
­2
+
3
DIGITAL INPUT 2
­4
+
5
FUM E HOOD EX. 1
­6
+
7
FUM E HOOD EXHAU ST 2
­8
+
9
FUM E HOOD EXHAU ST 3
­10
+
11
FUM E HOOD EXHAU ST 4
­12
+
13
FUM E HOOD EXHAU ST 5
­14
+
15
FUM E HOOD EXHAU ST 6
­16
17
+
FUM E HOOD EXHAU ST 7
-
18
+
19
SENSOR SIGNAL IN
­20
+
21
AUX. EXHAUST 1
­22
+
23
AUX. EXHAUST 2
­24
+
25
SUPPLY 1
­26
+
27
SUPPLY 2
­28
+
29
TEM PERATU RE
­30
+
31
AUX. INPUT
­32
MODEL 8682 - KF1
MODEL 8682-KF1
WIRING DIAGRAM - ELECTRIC
WIRING DIAG RAM - ELECTRIC
25 26
23
24
+
POW ER (24 VAC )
RS485 PORT
D.I.M. COMM
NODE
STATUS
33
-
34
35EARTH GND
+
36
-
37
+
38
-
39
+
40
-
41
+
42
-
43
+
44
-
45
+
46
-
47
+
48
-
49
+
50
-
51
+
52
-
53
+
54
-
55
+
56
-
57
POW ER (2 4 VA C )
INTERFACE M ODULE
LO N W OR KS R S 485 PO RT
AUX. ANALOG OUTPUT
SUPPLY CO NTROL OUTPUT
AUX. EXHAUS T CONTROL OUTPUT
ANALOG OUTPUT 1
ANALOG OUTPUT 2
DIGITAL ALARM OUTPUT 1
DIGITAL ALARM OUTPUT 2
Project: Date: Page 22 of 23 Released 2/15/02
Manual Supplement
MODEL 8682 - KF1
MODEL 8682-KF1
ADAPTIVE O FFS ET C O N TR O LLE R
WIRING DIAGRAM - PNEUMATIC
WIRING DIAG RAM - PN EU M ATIC
2523
26
24
+
1
DIGITAL INPUT 1
­2
+
3
DIGITAL INPUT 2
­4
+
5
FUM E HOOD EX. 1
­6
+
7
FUM E HOOD EXHAU ST 2
­8
+
9
FUM E HOOD EXHAU ST 3
­10
+
11
FUM E HOOD EXHAU ST 4
­12
+
13
FUM E HOOD EXHAU ST 5
­14
+
15
FUM E HOOD EXHAU ST 6
­16
17
+
FUM E HOOD EXHAU ST 7
-
18
+
19
SENSOR SIGNAL IN
­20
+
21
AUX. EXHAUST 1
­22
+
23
AUX. EXHAUST 2
­24
+
25
SUPPLY 1
­26
+
27
SUPPLY 2
­28
+
29
TEMPERATUR E
­30
+
31
AUX. INPUT
­32
POW ER (2 4 VA C )
INTERFACE MODULE
POW ER (2 4 VAC)
LO NW O RK S RS485 PORT
AUX. ANALOG OUTPUT
SUPPLY CONTROL OUTPUT
AUX. EXHAUST CONTROL OUTPUT
ANALOG OUTPUT 1
ANALOG OUTPUT 2
DIGITAL ALAR M OUTPUT 1
DIGITAL ALAR M OUTPUT 2
EARTH GND
RS485 PORT
D.I.M. COMM
NODE
STATUS
+
33
-
34
35
+
36
-
37
+
38
-
39
+
40
-
41
+
42
-
43
+
44
-
45
+
46
-
47
+
48
-
49
+
50
-
51
+
52
-
53
+
54
-
55
+
56
-
57
Project: Date: Page 23 of 23 Released 2/15/02
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