Issue VSB valves have been substituted by the Schneider Electric V211T valve VSB..F valves have been substituted by the Schneider Electric V211 valve VMB valves have been substituted by the Schneider Electric V311T valve VMB..F valves have been substituted by the Schneider Electric V311 valve   Product Line Field Device Environment VMB VSB Cause The existing actuator is not compatible with the replacement valve as it is a different type. Resolution Schneider Electric  are no longer supplying VSB and VMB valves. They are replaced by a Schneider Electric Venta valve. Note: VSB and VMB valves are still manufactured by Controlli. VSB 2 ports are replaced by the V211T, VSB..F is replaced by the V211. VMB 3 ports are replaced by the V311T, VMB..F is replaced by the V311. The existing actuator will no longer fit on the new valve and needs to be replaced as well. If the actuator was a Controlli MVB22, MVB26 or MVB28, then replace with MV15B-230 actuator. If the actuator was a Controlli MVB46, then replace with MV15B-24 actuator. If the actuator was a Controlli MVB36, MVB52 or MVB56 then replace with M800 actuator. For compatibility: V211, V211T, V311 and V311T Venta valves are directly compatible with the Forta range of actuators e.g. M310, M400, M800, M1500, M3000, M700, MG900 and the MV15B-24/230 and no linkage kits are required.

Issue The documentation notes a TC900 can be changed from a 4-pipe system with a 2-wire motorized valve to a 2-pipe system with a 3-wire motorized valve. What parameter changes are required? Product Line Field Devices Environment TC907-3A4LAB TC907-3A4LMAB TC907-3A4DLSAB TC907-3A4DLMSAB TC907-4FMSAB TC907-3A4DPSAB TC907-3A4DPMSAB TC907-3A4DPMSA-24B TC907-4FMSA TC907-3A4LMA TC907-3A4LA TC907-3A4DPSA TC907-3A4DPMSA-24 TC907-3A4DPMSA TC907-3A4DLSA TC907-3A4DLMSA Cause Documentation is unclear in how a TC900 is configured to use a 3-wire valve actuator Resolution Access the parameter settings by pressing and holding the mode button for six seconds during thermostat power up. Press the mode button or Fan button to move forward or backward between the parameters until parameter 09 is displayed. Press the up and down buttons to set the parameter to 04.  

Issue What is the unit load of a TC900 thermostat and what are the bias and termination requirements when used with a SmartX Server. Product Line EcoStruxure Building Operation, Field Devices Environment TC907-3A4LMA TC907-3A4DLMSA TC907-4FMSA TC907-3A4DPMSA TC907-3A4DPMSA-24 TC903-3A4LMA TC903-3A4DLMSA TC903-4FMSA TC903-3A4DPMSA TC903-3A4DPMSA-24 SmartX Server Cause Documentation does not state the RS-485 transceiver type for the TC900 range, making it unclear how many devices can exist under a SmartX servers RS-485 serial port ComA or ComB. Resolution Use the Worksheet for Configuration of RS-485 Bus with generic RS-485 devices on Webhelp to determine the appropriate Modbus configuration. The answers to the transceiver interface attributes below can be applied to complete the worksheet. Q1 Failsafe Receiver : The TC900 uses an RS-485 transceiver with an integrated idle-state failsafe receiver. Q2 Data Transmission Speed : TC900 thermostats can be configured to communicate at 4800, 9600, 19200 or 38400 bps. Q4 Isolated Interface : The TC900 does not provide an isolated RS-485 interface. Q6a Measured Resistance : With no electrical connections to the TC900, the measured resistance between the RS-485 low-side (-) signal and the communications common is 8.2K ohms. Based on this the unit load of the TC900 is 1.46 (12.000/8,200) Bias requirements and number of devices If there are only TC900 devices on the RS-485 bus then Generic RS-485 Network Device configuration 1 applies, configuration becomes very simple and no node or distance reductions are called for. The failsafe receivers can typically operate with no added bias resistors. Connect a 120 ohm termination resistor across the + and - data lines at the head end of the bus (typically at the SmartX server). Connect another 120 ohm termination resistor across the + and - data lines on the last node at the far end of the bus. Connect the shield drain wire to earth ground terminal rail in the panel with the SmartX server. This is the only ground connection of the shield for the complete cable segment. Connect the RET/Shield terminal (see the figure below) on the SmartX server to the ground rail in the panel using a 12 AWG (3.31 mm²) to 18 AWG (0.82 mm²) wire. Since the TC900 has a unit load of 1.4 the maximum number of devices that can be placed under each comm port using this configuration is 21 (31.5 / 1.46 = 21.5) Also check out the SmartStruxure-RS485-Controller Unit Load Quick-Help video on the Exchange.

Issue Are the V211T, V222, V292 valves suitable in a system containing 28% bio ethanol? Environment V211T V222 V292 Cause Application requirement on content. Resolution With a content of only 28%, the valves should work just fine. Cast iron is not ideal, but it works fine. Stem packing materials are EPDM and teflon, and they will also work fine with this content.

Issue Site backups, application files, etc need to be shared with Product Support to speed resolution. These files can be uploaded to the Box server. Environment Schneider Electric PSS-Rockford and PSS-Dallas Box server folder Cause Many email services have a limit on the size of attachments. In many cases, large files must be sent to Product Support so that the support engineer can investigate a reported issue. Resolution Use the following form to upload the files associated with your support ticket.  Please note that you must have an open support ticket with PSS- Rockford or PSS-Dallas before uploading a file.  Files uploaded without a reference to a support ticket will be deleted. You may upload additional files by clicking the appropriate link at the end of the "Success" message. Note: You might receive an error message despite your file still being sent

Issue Is there any thermic actuator that can be used with the VZ*19 valves? Environment VZ219 VZ319 VZ419 MZ20A MZ20B Cause In some applications, a thermic actuator is requested Resolution Unfortunately, the only available actuators for VZ*19 valves are the MZ20A (24V, 0-10V modulating control) and MZ20B (24V and 230V, 3 Point floating control)

Issue The SE8000 documentation states that the power supply voltage is 7 Volts DC but the circuit board sticker says 7 VDC/24 VAC. Can the controller be powered from 24 VAC? Environment SER8300 Cause The SE8000 documentation states that the power supply voltage is 7 VDC but the circuit board sticker says 7 VDC/24 VAC. Can the controller be powered from 24 VAC? Resolution Typically the SER8300 range are intended to have power supplied by the SC3000 relay pack which supplies the 7VDC. If an SC3000 relay pack is not used, for example if the SER8300 is just being used as a wireless device then it is acceptable to power it from 24VAC.

Issue The next generation extranet for Schneider Electric's Buildings Business is almost here: The Exchange. As a first phase deliverable, we are very excited to present The Exchange Download Center. All of the assets you once accessed through the Buildings Extranet are now available on a brand new platform. It's easy to search and fast to download. Stay tuned for more great features as we roll this into the all new extranet solution for Buildings. But first, we ask that you register for a new account on The Exchange.   Product Line Andover Continuum, EcoStruxure Building Expert, EcoStruxure Building Operation, Field Devices, Other, Pelco, Satchwell MicroNet, Satchwell Sigma, TAC IA Series, TAC INET, TAC Vista Environment The Exchange Download Center Cause In the near future we will be rolling out a brand new Buildings web experience from the ground up. The first phase of this renovation is the Download Center, where you can find all the files you need to use Schneider Electric's Buildings products quickly and easily. Resolution Navigate to https://ecobuilding.schneider-electric.com * Use a modern browser for the best experience: Google Chrome, Mozilla Firefox, Microsoft Internet Explorer version 8 or later. If you receive the following error in Internet Explorer despite using version 8 or later, the browser is displaying the page in Compatibility View. Click here for more information on Compatibility View and how to disable it. The Download Center will not function properly in Compatibility View.   On the header bar, you will see the option in the top right corner for “Login / Register.” Click it.   If you are already registered, enter your email address and password. If this is your first time registering, click the link for “New to the Download Center? Register here!”   Answer whether or not you are a Schneider Electric employee using the radio buttons. If you are a Schneider Electric employee, enter your SESA ID and your desired password for The Exchange. Click to accept Schneider Electric’s Terms and Conditions and hit “Create Account” * The first time you register you must be connected to the Schneider Electric network, or connected via VPN. This is only required at registration. All future logins can be done externally. If you are not a Schneider Electric employee, enter your first name, last name, company name, location, business email address, and desired password for The Exchange. * It is important to use your business email address if you are a licensed partner. Your email address is used to validate your Partner status and assign the correct permissions to your user profile automatically.   An email is sent to your designated inbox with a link to click through and validate your email address. Once this is done, your login is created and you are ready to start using the Download Center. * If an error is displayed when trying to validate your authentication code, please try to log in. This happens when an email address has already been verified and oftentimes does not indicate an error with the registration.   Once logged in, you can search and download assets available to your user profile. If you attempt to download a file that you do not have access to, you will be given a chance to report if this is in error. Your username, email, and the asset you are trying to access are recorded. Please enter a message if any further description is required and hit “Submit.” A member of our team will get back to you promptly with a resolution. Web Site Support For any issue regarding The Exchange Download Center, please contact us at exchangesupport@schneider-electric.com.

Issue Need to replace discontinued Erie actuator model AH13U020-Z but unsure if the current model AH13U020 can be used as a direct replacement Product Line Field Devices Environment Erie actuators Cause Unable to find any documentation for the AH13U020-Z Resolution The '-Z' models for the Erie actuators indicates it is the Made in China version of the actuator. We have since stopped manufacturing the actuator in China.  The AH13U020 can be used to replace the AH13U020-Z

Issue What is the unit load of SE8300 that will help me to count how many SE8300 controllers that can be added on AS ComA and ComB Product Line EcoStruxure Building Expert, EcoStruxure Building Operation, Field Devices Environment SER8300 room controller SE8300 room controller Automation Server Cause Documentation does not state the unit load of the SE8000 range Resolution The Generic application note AN01 can be applied with answers to the transceiver interface attributes below. The SE8000 range use the ADM4850A transceivers which are a failsafe transceiver (not requiring bias) and reduced 1/8 UL load. In addition the 100K local bias resistors have been eliminated and therefore the 1/8 UL of the transceiver would be the total UL presented to the bus by the SE8000.   Transceiver Xcvr Unit Load Xcvr Failsafe Adaptor Circuit Bias Circuit Bias Load Total Unit Load Isolated 485 Bus ADM 4850A0 0.125 Yes None None 0.125 Yes** ** Unlike the normally recommended interconnection of the communication common/reference (ground) terminal on all bus devices such as documented in the generic application note for the isolated RS485 bus interfaces, the Viconics bus should be operated with the communications REF (reference) terminal open on each SE8000 and not connected to the bus shield wire, or to any other circuit. Based on the above the total number of devices can be calculated as 32/0.125 = 256 The BACnet MSTP standard specifies that the address range for BACnet master devices is 0-127 and therefore an Automation Server is limited to 127 devices per com port (254 total per AS) so this should effectively be the limiting factor.   Also check out the SmartStruxure-RS485-Controller Unit Load Quick-Help video on the Exchange.

Issue TC303 thermostat parameter 2 setting and energy saving mode operation Product Line Field Devices Environment TC303-3A2DLMS TC303-3A4DLMS Cause The TC-303 parameter 2 setting is used to configure the fan operation status (fan on or fan off) after the temperature setpoint is reached. In the datasheet, it indicates that when the energy saving mode is activated, the fan will run at low speed. The datasheet does not mention what will happen if parameter 2 is set to fan off and energy saving mode is activated. Resolution Test results: If parameter 2 is set to fan off when temperature is reached, the fan will turn off when energy saving mode is activated. Below is the test result in cooling mode. Parameter 2 set to 00 (fan off when temperature is reached) Room temperature 24.0°C / Setpoint 20°C Enable energy saving mode - fan turns off  Parameter 2 set to 01 (fan on when temperature is reached) Room temperature 24.0°C / Setpoint 20°C Enable energy saving mode - fan continues to run.  If parameter 2 is set to fan off when temperature is reached, the fan will off when in energy saving mode when the temperature is reached. See below for test results in cooling mode.   1. Parameter 2 set to 00 (fan off when temperature is reached) Room temperature 24.0'CSetpoint 20'C Enable energy saving mode - fan turns off   2. Parameter 2 set to 01 (fan on when temperature is reached) Room temperature 24.0'CSetpoint 20'C Enable energy saving mode - fan continues to run.  If parameter 2 is set to fan off when temperature is reached, the fan will off when in energy saving mode when the temperature is reached. See below for test results in cooling mode.   1. Parameter 2 set to 00 (fan off when temperature is reached) Room temperature 24.0'CSetpoint 20'C Enable energy saving mode - fan turns off   2. Parameter 2 set to 01 (fan on when temperature is reached) Room temperature 24.0'CSetpoint 20'C Enable energy saving mode - fan continues to run. 

Issue Control Valve Sizing Environment Control valves Cause Selecting the wrong control valves can cause improper control operation  Resolution Refer the Application Note CA-28, Control Valve Sizing. This is a good reference document for sizing a control valve. 

Issue Multical 602 - No pulse output detected for cooling energy from top module 602-0C Environment Kamstrup Multical 602 heating/cooling meter with 602-0C top module (part number MAPULSETOP-C) Cause The 602-0C top module was purchased separately from the Multical 602 meter. The 602-0C top module is factory configured for a heat meter. Output C (terminals 16 and 17) is associated with heat energy CE+ which is stored in the calculator at register E1. The cooling energy CE- is stored in a separate memory location of the calculator at register E3.  Resolution Configure output C to cooling energy E3 using the METERTOOL HCW software and USB optical eye tool. Contact Product Support for the METERTOOL HCW software and the USB drivers for the USB optical eye tool The USB optical eye part number is MAOPTICUSB Procedure to configure output C to cooling energy: 1. Run the METERTOOL HCW software  2. Place the optical eye over the small window on the front of the calculator 3. Make sure that the optical tool is held in place magnetically and is resting on the lower pins 4. Press the connect button in METERTOOL HCW 5. Select Modules from the menu on the left-hand side 6. Select Configure Top Module from the next screen 7. The configure button will be inactive and in order to make any changes, you must read current configuration. Press the Read button 8. Output C is set to CE+ and that Output D is set to CV+ and the Configure button is now active 9. Using drop down box for Output C, select the option CE- to specify that this output will connect to the Cooling Energy register E3 10. Press the Configure button to write the new setting to the 602-0C top module and wait for this write process to complete It is recommended that the meter be cold started to ensure the changes takes effect. The procedure to cold start the meter is as follows.    Remove the calculator top piece from its base Click front buttons a few times to use up power (drains super-cap) Once display goes blank, wait for 30 seconds Replace the calculator top piece onto its base Display should come on and meter initialises it is best to cold start the meter to ensure changes takes effect, maybe we should mention that here, to do this...   a) remove the calculator top piece from its base b) click front buttons a few times to use up power (drains super-cap) c) once display goes blank, wait for 30 seconds d) replace the calculator top piece onto its base e) display should come on and meter initialises it is best to cold start the meter to ensure changes takes effect, maybe we should mention that here, to do this...   a) remove the calculator top piece from its base b) click front buttons a few times to use up power (drains super-cap) c) once display goes blank, wait for 30 seconds d) replace the calculator top piece onto its base e) display should come on and meter initialises

Issue Temperature Sensor Resistance Charts Product Line Andover Continuum, EcoStruxure Building Operation, Field Devices, Satchwell MicroNet, Satchwell Sigma, TAC IA Series, TAC INET, TAC Vista Environment Temperature Sensors Cause Temperature (°C) to Resistance Charts (ohms). Upgrading the site BMS, but retaining the existing sensors and the sensor resistance values are not known. Resolution The resistance of a sensor at a specific temperature can be downloaded here. The devices covered are Schneider-Electric's range including Andover, TAC and Satchwell and other manufacturers temperature sensors. All are detailed below. For the standard thermistor, tables click here, where the INET, I/A, and BALCO resistance tables are detailed. This is the chart for the Precon Thermistors - ACCTemp 10K Type III thermistor also known as the 10K4A1 Thermistor. For EcoStruxure I/O Module universal inputs, the type of thermistor bead is classed as a: "10k Type I (Continuum)" Satchwell T range is now known as STR600, STP660, STD600, STO600 10K3A1 with shunt Drayton DC1000, DC1100 30K6A1 is now known as STR600D, STP600D, STO600D Andover 10K4A1 TAC Inc. Vista 1.8KA1 I/A series 10K3A1 with 11K shunt INET 10K2A1 (10k Dale) BALCO 1000 ohm RTD Older Satchwell ranges: Satchwell DW1204, DW1305, DWS1202 Satchwell DO Satchwell DD/DR Other manufacturers include: Allerton 3K3A1 Ambiflex 2012, Honeywell Aquatrol, Jel/Thorn, Trend, York 10K3A1 Schlumberger (air) 5K3A1 Schlumberger (immersion) 100K6A1 Automatrix, York, Sibe 10K4A1 Honeywell 20K6A Landis & Gyr PT100A, PT1000A For I/A Series Controllers (MNL/MNB) Compatible sensors that have a built-in 11k shunt resistor include the TS-5711-850, TS-57011-850, TS-57031-850, and TSMN-90110-850 Series. Any sensor that matches resistance to temperature curve for a 10K Thermistor Type G (U.S. Sensor), Type 9 (Dale/Vishay) or Type III (ACI Series AH) can be used with the I/A Series MNL and I/A Series MNB series controllers, provided that a 11k ± 0.1% 1/8 watt resistor is wired in parallel with the sensor. The input has a range of -10 to 135 °F (-23.3 to 57.2 °C) with an accuracy of ±1% of span. Temperature / Resistance Reference Values Temperature Deg F (Deg C) Resistance Resistance Incl. 11k Shunt 32 (0) 25490 8,012 68 (20) 12,260 5,798 75 (25) 10,000 5,238 104 (40) 5,592 3,707 140 (60) 2,760 2,206 The full temperature / resistance table for the US Sensor 10K Thermistor R-T Curve Type G sensor can be found here. Please note that the controller may not be able to use the full temperature range shown in the table.  

Issue TC3XX thermostat is off when power is restored after a power loss Product Line Field Devices Environment TC300 TC303 TC353 Cause The default operation mode when the TC3xx thermostat is powered up is in OFF mode. Resolution An internal system setting (parameter 03) allows the possibility to alter the behaviour of the thermostat upon power restoration. 00 = Restores with previous status  01 = Restores with power off.  (this is the factory default setting) 02 = Restores with power on. Once power is restored, the thermostat will remember all parameters (** with the exception of the TC303-3A2DPMS and TC303-3AADPMS) that were in place before the power failure. The following specification numbers allow the thermostat’s restored state to be configured: - TC303-3A2L TC303-3A4L TC303-3A2DLS * TC353-3A2DLS TC303-3A4 * TC353-3A2L TC303-3A2DLMS * TC353-3A4DLS TC303-3A2LM * TC353-3A4L TC303-3A4DLMS ** TC303-3A2DPMS       ** TC303-3A4DPMS For guidance and instruction on how to perform the adjustment of internal system parameters, please contact your local/regional support team. * The TC353-3A2L, TC353-3A4L, TC353-3A2DLS and TC353-3A4DLS have been discontinued. Refer to PA-00686 - Product ObsolescenceNoticefor EMEA and APAC for further details. ** The TC303-3A2DPMS and TC303-3A4DPMS temperature set point will revert back to the default value after power is restored. This is as per designed. Please note: internal system parameters MUST ONLY be changed by a trained Schneider Electric or an approved Partner technician.Incorrect setting of such internal system parameters may result in either undesired operation of the thermostat or irreversible damage.

Issue Both BACnet MS/TP and Modbus typically provide a robust and reliable communications channel allowing the Automation Server to effectively manage a large collection of equipment over extended distances. When the system does not come up operating as expected due to the communications integrity, considerable effort can be consumed troubleshooting or working-around the fault observations. Product Line Andover Continuum, EcoStruxure Building Operation, Field Devices, Other, TAC IA Series Environment Automation Server with BACnet MS/TP or Modbus RS485 networks connected to Port A or Port B. Cause The configuration of the RS485 network can create conditions that reduce the tolerance for EMI noise on the bus, electrical ground differences, transmission signal loss through the cable and/or component performance. Resolution A collection of application notes and Quick Start Best Practices Guides are available on the subject of BACnet MS/TP and Modbus RS485 network connections to the StruxureWare Automation Server.  These application notes and quick start guides provide recommendations in the areas of – BACnet MS/TP & Modbus RS485 Network Termination Network Biasing Options and Techniques Unit Load and associated Maximum Node Count Recommendations Isolated RS485 Interfaces and related Expanded Unit Load Cable Specifications and Suggested Cable Selections Cable Routing and Recommended Lengths The documents describe configurations of cable, network length, node counts and bias arrangements providing compliance with the EIA/TIA-485 Standard and TSB-89-A Guidelines with the objective of optimizing system tolerance for noise, grounding and transceiver component variations.  Most of the application notes and quick start guides target specific product families which include the Andover Continuum b3 Family, TAC I/A Series MNB Family, Legrand Power Meters and the Viconics VT7000 series sensors. There is also an application note and quick guide directed toward other “Generic” RS485 MS/TP and Modbus devices where the user is guided through a sequence of information collection steps to determine the appropriate recommendations.  The collection of application notes and guides are available on the Schneider Electric download center. The list of links below will take you to the applicable download page. AN01-RS485-Generic Application Note – General MS/TP & Modbus I/F to Automation Server Quick Guide-RS485-Generic Best Practices Guide - General MS/TP & Modbus AN02-RS485-B3 Application Note – Continuum B3 I/F to Automation Server Quick Guide-RS485-B3 Best Practices Guide - Continuum B3 I/F AN03-RS485-MNB Application Note – I/A Series MNB I/F to Automation Server Quick Guide-RS485-MNB Best Practices Guide – I/A Series MNB I/F AN04-RS485-Legrand Application Note – Legrand Meter I/F to Automation Server Quick Guide-RS485-Legrand Best Practices Guide – Legrand Meter I/F AN05-RS485-VT7000 Application Note – VT7000 Series I/F to Automation Server Quick Guide-RS485-VT7000 Best Practices Guide – VT7000 Series I/F Note:    If using the download center for the first time, you will need to register. See Register for The Exchange Download Center for more information. The Download Center requires the use of Internet Explorer (version 8 or higher), Google Chrome or Firefox browsers. Additional information is available in the Hardware Reference Guide Access the StruxureWare Building Operation Web Help. Also check out the SmartStruxure-RS485-Controller Unit Load Quick-Help video on the Exchange.

Issue What is the unit load of a TC300 thermostat and what are the bias and termination requirements when used with a SmartX Server. Product Line EcoStruxure Building Operation, Field Devices Environment TC303-3A2LM TC303-3A4LM TC303-3A2DLMS TC303-3A4DLMS SmartX Server Cause Documentation does not state the RS-485 transceiver type for the TC300 range, making it unclear how many devices can exist under a SmartX servers RS-485 serial port ComA or ComB. Resolution The answers to the transceiver interface attributes below can be applied with to the Worksheet for Configuration of RS-485 Bus with generic RS-485 devices on Webhelp Q1 Failsafe Receiver The TC300 does not use an RS-485 transceiver with an integrated idle-state failsafe receiver. Q2 Data Transmission Speed TC300 thermostats manufactured from November 2018 onward can be configured to communicate at 9600 or 4800 bps. TC-300 thermostats manufactured before this date can only communicate at 4800 bps. Q4 Isolated Interface The TC300 does not provide an isolated RS-485 interface. Q6a Measured Resistance With no electrical connections to the TC300, the measured resistance between the RS-485 low-side (-) signal and the communications common is 10K ohms. Based on this the unit load of the TC300 is 1.2 (12.000/10,000) Bias requirements and number of devices If the length of the RS-485 bus is less than 150M (500ft) then Generic RS-485 Device Configuration 3 from Webhelp can be applied. Using this configuration the recommended 3300 bias resistors present a unit load of 3.6 (12,000 / 3,300). The SmartX server adds 0.5UL. The remaining node budget is calculated as: 32 - 3.6 - 0.5 = 27.9UL. Since the TC300 has a unit load of 1.2 the maximum number of devices that can be placed under each comm port using this configuration is 27.9 / 1.2 = 23.25 If the length of the RS-485 bus is greater than 150M (500ft) then Generic RS-485 Device Configuration 7 from Webhelp can be applied. Using this configuration the dual end-point bias configuration presents a unit load of 24UL (12,000 / (1,000 / 2) = 24). The SmartX server adds 0.5UL. The remaining node budget is calculated as: 32 - 24 - 0.5 = 7.5UL. Since the TC300 has a unit load of 1.2 the maximum number of devices that can be placed under each comm port using this configuration is 7.5 / 1.2 = 6.25 Also check out the SmartStruxure-RS485-Controller Unit Load Quick-Help video on the Exchange. 

Issue Where can we find the LON xif files for SE72xx, SE73xx, SE76xx controllers? Environment SE7200 / SE7300 / SE76000 Cause xif files are needed for LON applications. Resolution All LON related files for these controllers are available for download on The Exchange Download Center:   XIF files and plug-ins Resource files (DRF kit)

Issue The documentation on The Exchange differs from the documentation included in the packaging. Neither document shows the full capabilities or wiring options of the transmitter. Environment STO300 Cause The supplier recently changed the PCB and as a result, all of the 300 model plantroom type sensors now offer dual outputs (current and voltage). Since the part number designation is for current only the documentation included in the packaging only shows this configuration. To further complicate matters the specification and installation materials on The Exchange have not been updated to reflect the changes at this time Resolution The installation instructions included in the product packaging should always be referred to when installing these transmitters. The latest installation instructions can be downloaded here. If the new 0-10VDC output feature is required please follow the diagram below for wiring and DIP switch configuration.

Issue When an SLR320 light level sensor has power applied a transient voltage (approx. 17VDC) is seen on the output. Environment SLR320 Cause In order to provide dual output capability (voltage and current) with both AC and DC supply, it is necessary to use a capacitor to filter the AC supply. This capacitor is also active in current mode because it is placed behind the rectifier at the G clamp. An additional resistance is added inside to minimize this load current. This load current of the capacitor (which is the cause of transient voltage) cannot be reduced to zero, otherwise the voltage output cannot be used at AC supply within its specification (max. output voltage @ min. load resistance @ min. supply voltage, Y clamp). Resolution This behavior is expected and by design. The transient voltage generated by the load current is settled within approximately 40ms and occurs only at power up. The transmitter is continuously powered so this would not normally be an issue and would have stabilized before a controller that was powered up at the same time would be booted and scanning it's inputs.