Building Automation Knowledge Base

Issue Erie controllers SR-201, 301,601, 201-AT, 301-AT, and 601-AT. Voltage apparent on unpowered Relay Terminals. Environment SR-201 SR-301 SR-601 SR201AT SR301AT SR601AT Cause The large foil surfaces used to carry the high currents of the switched loads of these control boards act as antennas causing the DMM to read a voltage signal. Resolution The voltage as read L2 to X1 approximately 12 VAC and L2 to X2 approximately 25 VAC is not harmful to humans or equipment and will not affect the operation of the unit. When determining if these induced voltages are present, all wiring except power wiring to L1 and L2 should be disconnected.

Issue Where can end users find Product Literature? Environment Field Devices Cause Finding documentation on different terminal units, end devices, and field units. Resolution There is lot of literature on our products at The Exchange and also under the Cross Reference Tool when doing a search for the part number. If not found there, they can look in the list of product titles shown in the website under Products & Field Devices. Here there will be many .pdf files to view.

Issue TS-7222 and TS-6722 30K thermistor sensor (no 11K shunt) resistance table Environment TS-7222 TS-6722 Cause Specification on the sensing element. Resolution   Temp (°C) Temp (°F) Ohms    25.0°     77.0°    30,000    26.0°     78.8°    28,806    27.0°     80.6°    27,678    28.0°     82.4°    26,598    29.0°     84.2°    25,566    30.0°     86.0°    24,582    31.0°     87.8°    23,637    32.0°     89.6°    22,737    33.0°     91.4°    21,873    34.0°     93.2°    21,048    35.0°     95.0°    20,256    36.0°     96.8°    19,500    37.0°     98.6°    18,774    38.0°     100.4°    18,081    39.0°     102.2°    17,415    40.0°     104.0°    16,776    41.0°     105.8°    16,167    42.0°     107.6°    15,582    43.0°     109.4°    15,021    44.0°     111.2°    14,481    45.0°     113.0°    13,965    46.0°     114.8°    13,470    47.0°     116.6°    12,993    48.0°     118.4°    12,537    49.0°     120.2°    12,099    50.0°     122.0°    11,679    51.0°     123.8°    11,274    52.0°     125.6°    10,887    53.0°     127.4°    10,515    54.0°     129.2°    10,155    55.0°     131.0°    9,813    56.0°     132.8°    9,480    57.0°     134.6°    9,162    58.0°     136.4°    8,856    59.0°     138.2°    8,562    60.0°     140.0°    8,280    61.0°     141.8°    8,007    62.0°     143.6°    7,746    63.0°     145.4°    7,494    64.0°     147.2°    7,251    65.0°     149.0°    7,017    66.0°     150.8°    6,792    67.0°     152.6°    6,573    68.0°     154.4°    6,366    69.0°     156.2°    6,165    70.0°     158.0°    5,970    71.0°     159.8°    5,784    72.0°     161.6°    5,604    73.0°     163.4°    5,430    74.0°     165.2°    5,262    75.0°     167.0°    5,100    76.0°     168.8°    4,944    77.0°     170.6°    4,794    78.0°     172.4°    4,650    79.0°     174.2°    4,509    80.0°     176.0°    4,374    81.0°     177.8°    4,242    82.0°     179.6°    4,116    83.0°     181.4°    3,996    84.0°     183.2°    3,879    85.0°     185.0°    3,765    86.0°     186.8°    3,654    87.0°     188.6°    3,549    88.0°     190.4°    3,447    89.0°     192.2°    3,348    90.0°     194.0°    3,252    91.0°     195.8°    3,159    92.0°     197.6°    3,069    93.0°     199.4°    2,982    94.0°     201.2°    2,898    95.0°     203.0°    2,817    96.0°     204.8°    2,739    97.0°     206.6°    2,661    98.0°     208.4°    2,589    99.0°     210.2°    2,517    100.0°     212.0°    2,448    101.0°     213.8°    2,382    102.0°     215.6°    2,319    103.0°     217.4°    2,256    104.0°     219.2°    2,196    105.0°     221.0°    2,138    106.0°     222.8°    2,081    107.0°     224.6°    2,026    108.0°     226.4°    1,973    109.0°     228.2°    1,921    110.0°     230.0°    1,871    111.0°     231.8°    1,822    112.0°     233.6°    1,775    113.0°     235.4°    1,729    114.0°     237.2°    1,685    115.0°     239.0°    1,642    116.0°     240.8°    1,600    117.0°     242.6°    1,560    118.0°     244.4°    1,520    119.0°     246.2°    1,482    120.0°     248.0°    1,445    121.0°     249.8°    1,409 

Issue TS-5722 and TS-6722 30 K thermistor sensors with 11 K shunt resistance table Environment TS-5722 Electronic Remote Temperature Sensors TS-6722 Electronic Remote Temperature Sensors Cause Specification on the sensing element. Resolution Temp (°C) Temp (°F) Ohms (11K shunt)    25.0°     77.0°   8,049   26.0°     78.8°   7,960   27.0°     80.6°   7,872   28.0°     82.4°   7,782   29.0°     84.2°   7,691   30.0°     86.0°   7,599   31.0°     87.8°   7,507   32.0°     89.6°   7,413   33.0°     91.4°   7,319   34.0°     93.2°   7,224   35.0°     95.0°   7,129   36.0°     96.8°   7,033   37.0°     98.6°   6,936   38.0°     100.4°   6,839   39.0°     102.2°   6,742   40.0°     104.0°   6,644   41.0°     105.8°   6,546   42.0°     107.6°   6,448   43.0°     109.4°   6,350   44.0°     111.2°   6,251   45.0°     113.0°   6,153   46.0°     114.8°   6,055   47.0°     116.6°   5,957   48.0°     118.4°   5,859   49.0°     120.2°   5,762   50.0°     122.0°   5,665   51.0°     123.8°   5,568   52.0°     125.6°   5,472   53.0°     127.4°   5,376   54.0°     129.2°   5,280   55.0°     131.0°   5,186   56.0°     132.8°   5,092   57.0°     134.6°   4,999   58.0°     136.4°   4,906   59.0°     138.2°   4,815   60.0°     140.0°   4,724   61.0°     141.8°   4,634   62.0°     143.6°   4,545   63.0°     145.4°   4,457   64.0°     147.2°   4,370   65.0°     149.0°   4,284   66.0°     150.8°   4,199   67.0°     152.6°   4,114   68.0°     154.4°   4,032   69.0°     156.2°   3,951   70.0°     158.0°   3,870   71.0°     159.8°   3,791   72.0°     161.6°   3,713   73.0°     163.4°   3,635   74.0°     165.2°   3,559   75.0°     167.0°   3,484   76.0°     168.8°   3,411   77.0°     170.6°   3,339   78.0°     172.4°   3,268   79.0°     174.2°   3,198   80.0°     176.0°   3,130   81.0°     177.8°   3,061   82.0°     179.6°   2,995   83.0°     181.4°   2,931   84.0°     183.2°   2,868   85.0°     185.0°   2,805   86.0°     186.8°   2,743   87.0°     188.6°   2,683   88.0°     190.4°   2,625   89.0°     192.2°   2,567   90.0°     194.0°   2,510   91.0°     195.8°   2,454   92.0°     197.6°   2,400   93.0°     199.4°   2,346   94.0°     201.2°   2,294   95.0°     203.0°   2,243   96.0°     204.8°   2,193   97.0°     206.6°   2,143   98.0°     208.4°   2,096   99.0°     210.2°   2,048   100.0°     212.0°   2,002   101.0°     213.8°   1,958   102.0°     215.6°   1,915   103.0°     217.4°   1,872   104.0°     219.2°   1,831   105.0°     221.0°   1,790   106.0°     222.8°   1,750   107.0°     224.6°   1,711   108.0°     226.4°   1,673   109.0°     228.2°   1,635   110.0°     230.0°   1,599   111.0°     231.8°   1,563   112.0°     233.6°   1,528   113.0°     235.4°   1,494   114.0°     237.2°   1,461   115.0°     239.0°   1,429   116.0°     240.8°   1,397   117.0°     242.6°   1,366   118.0°     244.4°   1,336   119.0°     246.2°   1,306   120.0°     248.0°   1,278   121.0°     249.8°   1,249

Issue Are there any Maintenance parts books? Environment Maintenance parts Cause Locate the replacement part numbers for the part requiring maintenance. Resolution There are 2 maintenance parts books. They are: F-26033 for older Barber Colman F-26034 pneumatic Robertshaw

Issue Identify the correct linkage to use with a valve and actuator Environment Valve linkage Cause Identify the correct valve linkage for a valve and actuator part. Resolution The Valves and Actuators Catalog has linkage selection information.

Issue What is the stroke time of the pneumatic actuator Environment Pneumatic actuator Cause Information on the actual distance the rod moves. Resolution Stroke time of a pneumatic actuator is determined by the available air pressure and air piping capacity.

Issue What is the difference between the AV-607, AV-609 and AV-607-1, AV-609-1 Environment AV-607, AV-607-1 AV-609, AV-609-1 Cause Product information of a part number. Resolution These rack and pinion linkages have been modified in the -1 revision to allow dual actuator mounts. Refer to document F-26752-12 or later to determine the dual actuator close off forces and where dual actuators are allowed. Dual actuators can not be ordered factory assembled. Order single actuator assemblies and field mount second actuator.

Issue I have pneumatic actuators and want to convert to electric. Environment Pneumatic Actuators Cause Convert existing pneumatic actuators to electric. Resolution Conversions are possible for some but not all pneumatically activated valves. See the "Competitive Globe Valve Adapter Selection Guide" for all available adapters and applications.

Issue Using the Xenta 421A, 422A, 451A or 452A I/O modules as a stand alone Lonworks node and all values are reading the default 0. Product Line EcoStruxure Building Operation, Field Devices, TAC Vista Environment Xenta I/O Modules Xenta 400, 421A, 422A, 451A, 452A as stand alone LON nodes Cause The Xenta 421A and Xenta 451A as stand alone Lonworks node require the UCPTConfiguration to be set to the necessary integer value for the required input. Resolution Please see the supporting documentation for the TAC Xenta 421A/422A and TAC Xenta 451A/452A that gives each nci value for the needed input type. To configure each input to the correct type please follow these steps: Navigate to the node in your Lonworks network management software (Lonmaker, NL220, Tridium, Etc.) Browse / Edit the controller to view all of the inputs, outputs, and configuration properties. Find the Universal Input module for the input you need to configure, and locate the UCPTConfigInput variable within that module Set this UCPTConfigInput variable to one of the following: 1 = 1.8 kohm thermistor 2 = DI with green indication 3 = 0-10 vdc 4 = 0-20 mA 5 = 10 kohm thermistor 6 = DI with red indication 7 = DI with green inverted indication 8 = DI with red inverted indication NOTE: This is normally done in Menta when you are using these controllers as I/O modules to a Xenta 401, Xenta 301, Xenta 302 base unit.  The scan time of all inputs is (200ms * number of inputs used).  So if there are 3 inputs, the complete module will have been scanned every 600ms.

Issue DC1100 / DC1400 Outside Occupation message is displayed and Plant is not operating. Environment DC1100 / DC1400 Discrete Controller. Cause Heating Time Schedule is in an OFF period. Remote Override has been activated. Controller Current Time is incorrect. Room Sensor does not display a value or is not listed. Resolution Check Heating Time Schedule OFF time. If Heating Time Schedule OFF time is earlier than the Controller Actual Time then condition displayed is correct. If Heating Time Schedule OFF time is later than the Controller Actual Time then condition displayed is incorrect. Check presence of Drayton DC1100 Remote Switch Unit. This can be confirmed by presence of wire connected to Controller Terminal 9. Check / amend setting of Drayton DC1100 Remote Switch Unit in order to test accuracy of message displayed. Check presence of bespoke Remote Override Control Unit This can be confirmed by presence of wire connected to Controller Terminal 9. A 33K Resistor should also be visible wired between Controller Terminal 9 and Terminal 7 Check / amend setting of Remote Override Control Unit in order to test accuracy of message displayed. N.B. The Drayton DC1100 Remote Switch Unit is common to both DC1100 and DC1400 installations. If the DC1100/1400 is used as an Optimiser, check the room sensor is connected and reading. Rectify the issue, a coldstart may be required to reconfigure the controller.

Issue If airflow direction is reversed in duct from f.ex. 100 Pa to -100 Pa, will the SPD310/SPD360 break? Environment SPD310 SPD360 Cause Reversing airflow direction in duct. Resolution It will not break. If the "sym" jumper setting is changed when airflow direction is changed (reversed), it will read the value correctly.

Issue Negative values presented to an IC3-SNP Integration Controller are displayed starting at 65535. Environment Sigma Integration Controllers IAC Controllers Unifact Controllers Cause The IC3-SNP Integration Controller calculates the negative value incorrectly. Resolution To overcome this issue it will be necessary to create a new Lookup table and to allocate it to the IC3-SNP Analogue Input object. 1 - In Sigma "System Manager" select "System Setup" and create a new lookup table, using the configuration shown below. 2 - Edit the Analogue Input object to include the new Lookup Table number, select to download the object. 3 - In Sigma "System Diagnostics" download the Lookup Table to the IC3-SNP. 4 - The lookup table shown above assumes that the value being presented is in whole numbers, i.e. a received value of 1 equals 1, but there are instances when the value received may have a *10 factor applied. In this case the lookup table is modified as shown below. Input         Output 0               0 32767       3276.7 32768      -3276.8 65535      -0.1

Issue Satchwell ZRM series or AZ2451 Rotary Actuator requires replacement.. Environment Satchwell ZRM Rotary Actuator installed on Satchwell MB Series Rotary Shoe Valve Body. Satchwell AZ2451 Rotary Actuator installed on Satchwell MB Series Rotary Shoe Valve Body. Satchwell ZRM Rotary Actuator installed on Satchwell MC Series Step Controller. Satchwell ZRM Rotary Actuator installed on Satchwell MD Series Step Controller. Cause Obsolescence of Satchwell ZRM series and AZ2451 Rotary Actuator Resolution Please check number of wires connected to ZRM Actuator as this will assist in determining a suitable replacement. The Satchwell ZRM Actuator or AZ2451 would normally have been installed on a Satchwell MB Valve Body. The Satchwell ZRM Actuator could however have been installed on a Satchwell MC or MD Series Step Controller. The Actuator comprised a 6 wire electrical connection enabling it to be operated from a Satchwell Z Monotronic or CZT Climatronic Proportional Controller as follows :-  Terminal 1 – Open signal Terminal 2 – Close signal Terminal 3 – Common  Terminal A – 135 ohm Feedback Potentiometer – winding Terminal B – 135 ohm Feedback Potentiometer – wiper Terminal C – 135 ohm Feedback Potentiometer – winding 1. If all 6 wires are connected then the ZRM Actuator or AZ2451 may be replaced by one or other of the following SE Actuators :- MD20B-24 + Linkage Kit 914-1071-000 from Schneider Electric and an accessory kit  P140A from Belimo 2. ALTERNATIVE REPLACEMENT If in some installations, 3 wires are only connected to the ZRM Actuator. Terminal 1 – Open signal Terminal 2 – Close signal Terminal 3 – Common In such instances the ZRM Actuator or AZ2451 may be replaced by the XRM3201 or MD10B-24/MD20B-24 + Linkage Kit 914-1071-000

Issue Replacement of AVUE Mk 1 Actuator installed on VEU, MEU or FEU Mk 2 Unit Control Valve Body due to Actuator obsolescence. Environment AVUE Mk 1 Actuator installed on VEU, MEU or FEU Mk 2 Unit Control Valve Body. Cause AVUE Mk 1 Actuator obsolescence. Resolution Replace AVUE Mk 1 Actuator. AVUE Mk 5 Actuators are not compatible with the VEU, MEU or FEU Mk 2 Unit Control Valve Bodies. It will therefore be necessary to replace both the AVUE Mk 1 Actuator and the Valve Body on which it is installed. Replacement products may be selected from the following :- AVUE Mk 1 Actuator = MZ20A or MZ20A-R VEU Mk 2 Valve Body (2-port) = VZ219 series of appropriate connection type / size / Kv rating MEU Mk 2 Valve Body (3-port) = VZ319 series of appropriate connection type / size / Kv rating FEU Mk 2 Valve Body (4-port) = VZ419 series of appropriate connection type / size / Kv rating   N.B. It should be noted that there may be dimensional variations between the existing and replacement Valve Bodies.

Issue I have an obsolete floating / proportional / two-position actuator connected to my controller.  Need to replace the obsolete actuator, preferably without modifying the controller or valve. How do I locate a replacement? Environment Obsolete electronic actuator Cause Find replacement parts for obsolete actuators. Resolution Use the Schneider Electric Cross Reference Tool

Issue Miscellaneous points that are controlled via Plain English programs are not following the program's command. Environment Cyberstation, All Versions. All BACnet type controllers with Plain English Code Cause Default BACnet Command Priorities must be modified based on the Continuum system configuration and integration with other 3rd Party BACnet devices. Example: By default, Graphics have a Command Priority of "Manual Operator" (8) and Plain English has a default Command Priority of (10). If the system is left with these defaults, then an operator who modifies, adjusts or toggles a point value via a graphic will in turn set that value with a command priority of 8. Since PE has a command priority of 10, the operator command remain in effect until either it is relinquished or a similar or higher command priority is sent. In this example, an operator set a point that is controlled via Plain English was toggled (not overridden) from On to Off. The Program wanted it ON. The point will stay in the Off position until either the operator(s) relinquish the command or another command of the same command priority sends a value. Resolution Open the BACnet preferences at the Workstation. Set all the Command priorities to 10. This will allow Plain English programs, etc to retake control of point affected but changes made via graphics or other editing methods. If the points however are actually override, you must release the override and relinquish the command. See BACnet Documentation: BACnet For Continuum Users (loaded on all Cyberstations) Continuum BACnet Engineering

Issue I2867 inputs all read 1000 Degrees. Change out of controller does not remedy the issue. Environment All Infinet/MSTP controllers Cause Field controllers have an electrical range that they will properly operate. Typically this is +10% and -15% of the required power as described in the installation manual. If the power supplied to the unit is below this threshold, the CPU and power LEDs may appear normal, however the inputs and outputs will not function properly or at all. They are out of range. This situation must be remedied or damage can also occur. One way this can occur is if a properly grounded secondary transformer is not supplied. Supplying power from a piece of equipment that uses a step down 220/208-24 etc power supply can cause electrical issues should that equipment experience electrical problems. Resolution Supply proper, grounded 24Vac power to the controllers. Always check the power with a multi-meter and verify grounding.

Issue Setpoint button may break if forced outside of movement range. Environment STR-106 Cause Excessive force used to turn setpoint button outside of movement range. Resolution Report faulty unit through Warranty Claim System. Replacement button carries component no 372069900.

Issue What resources are available to get more information on the M-Bus protocol? Product Line Andover Continuum, Field Devices, Other, Satchwell MicroNet, Satchwell Sigma, TAC IA Series, TAC INET, TAC Vista Environment M-Bus Cause The M-Bus protocol information is available on www.m-bus.com. Select The M-Bus: A Documentation Rev 4.8 Resolution The M-Bus protocol specifications is broken down in multiple chapters. Basics of Serial Bus System Overview of the M-Bus Physical Layer Data Link Layer Telegram Format, Meaning of Fields, Communication Process Application Layer Structure of fixed and variable data blocks. Network Layer Appendix Table of units, medium, data field codes, VIF extensions.