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KMC BAC-10000 manual Output, Fan, and Relay Issues, Analog Output Does Not Work, Fan Does Not Run

Models: BAC-10000

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Output, Fan, and Relay Issues

Analog Output Does Not Work

CAUTION

Do not mistakenly connect 24 VAC to an analog output ground. This is not the same as a relay’s switched common. See the backplate’s terminal label for the correct terminal.

NOTE: The maximum current of an analog output is 20 mA @ 12 VDC. Excessive loads will be clamped at the maximum. Relays may chatter or fail to latch if they need more current than the maximum allowed. KMC REE-3111/3112 relays, for example, could be connected to the analog outputs, but REE- 3211/3221/3213 relays would not operate reliably with analog outputs because their required power exceeds the FlexStat’s capacity. (REE-3211/3221/3213 relays could, however, be used with the FlexStat relays and a separate power source.)

•Check current draw of load—it must be 20 mA or less. Substitute an output device that draws less current.

•Check that the output is on.

•See Wiring Issues on page 21.

•See also Fan Does Not Run on page 20.

•If Restore Factory has just been performed, see the Note and Cautions in Restore Factory on page 15.

•If the firmware has just been upgraded, firm- ware for the wrong model type may have been installed (e.g., BAC-1xx63 firmware accidentally installed in a model BAC-1xx36). In the About menu, ASV may simply read “CUSTOM” instead of something like “BAC_1xx36 R1.1.0.5” as it normally would have done. If so, repeat the firm- ware upgrade and ensure that the correct type of firmware is selected for the connected model.

NOTE: ASV in the About menu will also show CUSTOM if any built-in Control Basic program (1–5) is not running or has auto- run disabled.

Fan Does Not Run

NOTE: The animated fan icon is coupled with BV18 in the packaged programming (not the actual fan output terminal).

•Select Occupied mode from the Home Menu— see H/C, Fan, Occupancy, and Override on page 3.

•Override the fan to On from the Home Menu— see H/C, Fan, Occupancy, and Override on page 3.

•See Wiring Issues on page 21.

•Check that the appropriate application is se- lected—see (Advanced) Application Options on page 5.

•Check the fan configuration—see Fan Setup on page 5.

•Restart the FlexStat. After a low limit alarm is generated, the fan will not run until after the FlexStat is restarted. (See Resetting the FlexStat on page 14.)

Relay (Internal) Does Not Work

CAUTION

Relays are for Class-2 voltages (24 VAC) only. Do not connect line voltage to the relays!

NOTE: Max. output current is 1 A for individual relays @ 24 VAC/VDC or a total of 1.5 A per bank of 3 relays (relays 1–3, 4–6, and 7–9). Do not attach a device that draws current that exceeds the corresponding value. Relays are NO, SPST (Form “A”).

•Check current draw of load. Substitute an output device that draws less current.

•Check that the output is on.

•See Wiring Issues on page 21.

•Restart the FlexStat.

•If Restore Factory has just been performed, see the Note and Cautions in Restore Factory on page 15.

BAC-10000 Series

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Operation Guide, Rev. J

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KMC BAC-10000 Output, Fan, and Relay Issues, Analog Output Does Not Work, Fan Does Not Run, Relay Internal Does Not Work
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BAC-10000 specifications

The KMC BAC-10000 is a cutting-edge building automation controller designed to offer exceptional performance in monitoring and controlling HVAC systems, lighting, and various other building systems. This advanced controller is engineered to enhance energy efficiency, improve occupant comfort, and provide streamlined building management capabilities.

One of the main features of the KMC BAC-10000 is its versatility. It supports a wide variety of communication protocols, including BACnet, Modbus, and LonWorks. This multi-protocol capability allows for seamless integration with existing building systems, ensuring that users can easily incorporate the BAC-10000 into their building management setup without the need for additional hardware or extensive modification.

The controller is equipped with an intuitive user interface that simplifies the management of building systems. It includes a graphical display that provides real-time data, enabling operators to monitor system performance, adjust settings, and troubleshoot issues with ease. This user-friendly design promotes efficient operation and reduces the learning curve for new users.

In terms of technical specifications, the BAC-10000 boasts a powerful microprocessor and an extensive range of I/O points, allowing it to handle large and complex building automation tasks. With support for both digital and analog inputs and outputs, users can customize their setup to meet specific operational requirements.

Another standout feature of the KMC BAC-10000 is its advanced data logging capabilities. The controller can record historical data for various parameters, which can be crucial for performance analysis and optimization. This functionality enables facility managers to identify patterns, predict maintenance needs, and ultimately enhance the overall efficiency of their systems.

Security is also a priority with the BAC-10000, as it includes multiple layers of security protocols to protect against unauthorized access and tampering. This ensures that sensitive building management data remains safe and that users can operate the controller confidently.

In conclusion, the KMC BAC-10000 is a robust and flexible building automation controller that offers extensive features and technologies for effective building management. Its multi-protocol support, user-friendly interface, advanced data logging, and emphasis on security make it a top choice for modern building automation needs. By choosing the BAC-10000, facility managers can optimize energy usage, improve occupant comfort, and streamline operations within their buildings.