System and method for intelligent power management in security system

Abstract

A control panel includes a primary power input, a backup power input, a plurality of power outputs for powering one or more external devices external to the control panel, and a controller configured to receive a user allocation state for each power output, where the user allocation states include a first state and a second state, in a first state, the corresponding power output provides primary power when the primary power is available and provides backup power when the primary power is unavailable, and in a second state, the corresponding power output provides primary power when the primary power is available but does not provide backup power when the primary power is unavailable. The controller is configured to control one or more of the plurality of power outputs in accordance with the corresponding user allocation states.

Description

Technical Field

[0001] The present disclosure relates to methods and systems for power management in security systems and / or fire protection systems, and more particularly to methods and systems for managing primary power and backup power in security systems and / or fire protection systems. Background Art

[0002] Building control systems, such as security systems and fire safety systems, typically include a large number of individual devices that require electrical power. When main power is available, all devices are typically powered by the main power. When main power is unavailable, backup power is typically used to maintain operation of the system until the backup power fails. If main power is not restored before the backup power fails, the system may shut down. For systems such as security systems and fire safety systems, this can be significant. One way to increase the life of the backup power is to only power critical devices with the backup power, while allowing non-critical devices to shut down when the main power fails. What is desired is a method and system for easily configuring and managing which devices of the system will be powered by both main power and backup power and which devices will be powered only by main power. Summary of the invention

[0003] The present disclosure relates to methods and systems for power management in security systems and / or fire protection systems, and more specifically to methods and systems for managing main power and backup power in security systems and / or fire protection systems. An example may be present in a control panel. The exemplary control panel includes a main power input for receiving main power from a main power source, a backup power input for receiving backup power from a backup power source, a plurality of power outputs for powering one or more external devices outside the control panel, and a controller operatively coupled to the main power input, the backup power input, and the plurality of power outputs. The controller is configured to receive a user-assigned state (e.g., user-programmable) of each power output of one or more power outputs in the plurality of power outputs, wherein the user-assigned state is one of a first state and a second state, in which in the first state, the corresponding power output provides the main power received at the main power input when the main power is available and provides the backup power received at the backup power input when the main power is not available, and in the second state, the corresponding power output provides the main power received at the main power input when the main power is available, but does not provide the backup power received at the backup power input when the main power is not available. The controller is configured to control one or more power outputs of the plurality of power outputs according to a corresponding user allocation status.

[0004] Another example may exist in a method of configuring a security system including a control panel and a plurality of security system components. The method includes displaying a user interface that allows a user to select which of a plurality of power rails of the control panel receive power when a primary power source is available but do not receive power from a backup power source when the primary power source is not available, and which of a plurality of power rails of the control panel receive power when the primary power source is available and also receive power from the backup power source when the primary power source is not available. For those power rails selected to receive power when the primary power source is available but do not receive power from the backup power source when the primary power source is not available, power is applied when the primary power source is available and power is not applied from the backup power source when the primary power source is not available. For those power rails selected to receive power when the primary power source is available and receive power from the backup power source when the primary power source is not available, power is applied when the primary power source is available and power from the backup power source is applied when the primary power source is not available.

[0005] The method includes determining a first plurality of security system components that need to remain powered when a primary power source is unavailable and a second plurality of security system components that do not need to remain powered when a primary power source is unavailable. The first plurality of security system components are field-connected to one or more power rails of a control panel, the one or more power rails being designated to receive power from a backup power source when a primary power source is unavailable. The second plurality of security system components are field-connected to one or more power rails of a control panel, the one or more power rails being designated not to receive power from a backup power source when a primary power source is unavailable.

[0006] Another example may be present in a control panel. The control panel includes a main power input for receiving main power from a main power source and a backup power input for receiving backup power from a backup power source. The control panel includes a plurality of power rails for powering one or more external devices outside the control panel, each of the plurality of power rails being coupled to the main power input and optionally coupled to the backup power input. A controller is operatively coupled to the main power input, the backup power input, and the plurality of power rails. The controller is configured to receive a user selection, and connect the backup power input to a power rail specified by a user selection to be powered by the main power source and the backup power source, the user selection specifying which of the plurality of power rails will be powered only by the main power source and which of the plurality of power rails will be powered by the main power source and the backup power source.

[0007] The above summary is provided to facilitate understanding of some innovative features unique to the present disclosure, but is not intended to be a complete description. A comprehensive understanding of the present disclosure can be obtained by viewing the entire specification, claims, drawings and abstract as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present disclosure may be more fully understood by considering the following description of various examples in conjunction with the accompanying drawings, in which:

[0009] Figure 1 is a schematic block diagram of an exemplary control panel;

[0010] Figure 2 yes Figure 1 A schematic block diagram of a portion of an exemplary control panel of;

[0011] Figure 3 is a schematic block diagram of an exemplary control panel;

[0012] Figure 4 is a schematic block diagram of an exemplary control panel;

[0013] Figure 5A and Figure 5B are flow charts that collectively illustrate an illustrative method of configuring a security system; and

[0014] FIG. 6A to FIG. 6D are illustrative screen shots.

[0015] Although the present disclosure is subject to various modifications and alternative forms, the details thereof have been shown by way of example in the accompanying drawings and will be described in detail. However, it should be understood that it is not intended to limit the present disclosure to the specific examples described. On the contrary, it is intended to cover all modifications, equivalents and alternatives that fall within the essence and scope of the present disclosure. DETAILED DESCRIPTION

[0016] The following description should be read with reference to the accompanying drawings, in which similar elements in different drawings are numbered in the same manner. The accompanying drawings are not necessarily drawn to scale, and they depict examples that are not intended to limit the scope of the present disclosure. Although examples of various elements are shown, those skilled in the art will recognize that many of the examples provided have suitable alternatives that can be utilized.

[0017] It is assumed herein that all numbers are modified by the term "about" unless the content clearly dictates otherwise. The recitation of numerical ranges by endpoints includes all numbers subsumed within that range (eg, 1 to 5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, and 5).

[0018] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification and the appended claims, the term "or" is generally employed in its sense including "and / or" unless the content clearly dictates otherwise.

[0019] It should be noted that references to "one embodiment", "some embodiments", "other embodiments", etc. in the specification indicate that the described embodiments may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, these phrases do not necessarily refer to the same embodiment. In addition, when a particular feature, structure, or characteristic is described in conjunction with one embodiment, it is contemplated that the feature, structure, or characteristic is described in conjunction with one embodiment, and it is contemplated that the feature, structure, or characteristic may be applied to other embodiments regardless of whether explicitly described, unless otherwise clearly stated.

[0020] Figure 1 1 is a schematic block diagram showing an exemplary system 10. The exemplary system 10 includes a control panel 12 configured to provide power to a plurality of external devices 14 individually labeled as 14a, 14b, 14c, 14d, and 14e. Although a total of five external devices 14 are shown, this is merely exemplary, as the system 10 may include any number of external devices 14. The external devices 14 may include devices that require access to backup power when the main power is unavailable. The external devices 14 may include devices that can be allowed to be without power when the main power is unavailable, so as to save backup power for those devices that need to be always running and therefore need access to backup power when the main power is unavailable (e.g., devices that support critical functions of the system 10). Examples of external devices 14 that should always be powered include certain security system components such as main controllers, motion sensors, door sensors, window sensors, earthquake sensors, and alarms. Examples of external devices 14 that can be allowed to be without power when the main power is unavailable include, for example, components such as temperature sensors and humidity sensors, lighting sensors, and water level sensors.

[0021] The control panel 12 includes a main power input 16 configured to receive main power from a main power source 18 (e.g., from line power). For example, the main power input 16 may include one or more power terminals for receiving one or more power cables. The main power source 18 may be a power source for a facility supported by the control panel 12. In some cases, the main power source 18 may include a transformer configured to provide a low voltage power source (e.g., 12 volts or 24 volts) to the main power input 16. The control panel 12 includes a backup power input 20 configured to receive backup power from a backup power source 22. For example, the backup power input 20 may include one or more power terminals for receiving one or more power cables. The backup power source 22 may include one or more batteries such as rechargeable batteries, which may be charged using power from the main power source 18 when the main power source 18 is available, and may provide power to the backup power source 22 when the main power source 18 is not available.

[0022] The control panel 12 includes a plurality of power outputs 24 that are individually labeled as 24a, 24b, 24c, and 24d. The power outputs 24 may be used to provide power to at least some of the external devices 14. Although a total of four power outputs 24 are shown, it should be understood that this is merely illustrative, as the control panel 12 may include any number of power outputs 24. In some cases, at least some of the power outputs 24 may only provide primary power when the primary power source 18 is available, and may not provide backup power from the backup power source 22 when the primary power source 18 is not available. In some cases, at least some of the power outputs 24 may provide primary power from the primary power input 16 when the primary power source 18 is available, and may provide backup power from the backup power input 20 when the primary power source 18 is not available. In some cases, as will be discussed, the control panel 12 may be programmable by a user to configure which power outputs 24 provide backup power from the backup power input 20 when the primary power source 18 is not available, and which power outputs 24 do not provide backup power.

[0023] The control panel 12 includes a controller 26 operatively coupled to the main power input 16, the backup power input 20, and the power output 24. The controller 26 is configured to receive a user-assigned state for each power output 24, wherein the user-assigned state is either a first state, in which the corresponding power output 24 provides the main power received at the main power input 16 when the main power is available and provides the backup power received at the backup power input 20 when the main power is not available, or a second state, in which the corresponding power output 24 provides the main power received at the main power input 16 when the main power is available, but does not provide the backup power received at the backup power input 20 when the main power is not available. The control panel may include a user interface (not shown) that allows a user to program the assignment state of each power output 24. Alternatively or in addition, the controller 26 may be programmed via a remote device 30 via a network 32. These are examples only. In any case, once programming is complete, the controller 26 is configured to control the power output 24 according to the corresponding user-assigned state. In some cases, the controller 26 may be configured to receive (e.g., via the user interface of the control panel 12 or from the remote device 30 over the network 32) an updated user-assigned state for a selected one of the power outputs 24, and to control the selected power output 24 according to the updated user-assigned state. That is, the user-assigned states assigned to the various power outputs 24 may be reprogrammed as needed.

[0024] As described above, in some cases, the control panel 12 may include a UI (user interface) 28 that allows a user to input information such as the user-assigned status of each power output terminal 24 into the control panel 12. In some cases, the UI 28 may be part of the control panel 12. In some cases, the UI 28 may be external to the control panel 12, but still operatively communicate with the control panel 12. In some cases, the controller 26 may receive the user-assigned status of at least some of the power output terminals 24 from the remote device 30 via the network 32. The remote device 30 may be, for example, a computer or a smart phone. The network 32 may be, for example, a wired network or a wireless network. In some cases, the control panel 12 may represent a security system control panel. In some cases, the control panel 12 may represent an intelligent power panel that is configured to provide power to various external devices 14, and in some cases, to the control panel 12.

[0025] The control panel 12 may be configured to implement any one of a plurality of different maintenance functions and / or test functions. In some cases, the controller 26 may be configured to automatically enable one or more maintenance functions and / or test functions of the control panel 12 when main power is available. The controller 26 may be configured to automatically disable one or more maintenance functions and / or test functions when main power is not available. Alternatively or in addition, the controller 26 may be configured to automatically set the backlight intensity setting and / or the volume setting to a first state when main power is available. The controller 26 may be configured to automatically set the backlight intensity setting and / or the volume setting to a second state when main power is not available, wherein the second state draws less power than the first state. In some cases, the second state may be off.

[0026] In some cases, each power output 24 may be considered a power rail. In some cases, the controller 26 may be configured to receive a user selection that specifies which of the plurality of power rails will be powered only by the main power source 18 and which of the plurality of power rails will be powered by both the main power source 18 and the backup power source 22. The controller 26 may be configured to connect the backup power input 20 to the power rails specified by the user selection to be powered by both the main power source 18 and the backup power source 22.

[0027] Figure 2is a schematic block diagram of the power output 24. The power output 24, which may also be referred to as a power rail, includes a power connector 34, a power connector 36, a power connector 38, and a power connector 40, thereby allowing a total of four external devices 14 to be connected to the power output 24 and powered by the power output. In some cases, the power output 24 may include any number of power connectors 40. Each of the power connectors 34, 36, 38, and 40 may include a positive (+) line terminal 42 independently labeled as 42a, 42b, 42c, and 42d, which is configured to receive a positive power line from one of the external devices 14. Each of the power connectors 34, 36, 38, and 40 may include a negative (-) line terminal 44 independently labeled as 44a, 44b, 44c, and 44d, which is configured to receive a negative power line from one of the external devices 14. In some cases, each of the power connectors 34, 36, 38, and 40 may include a ground wire terminal 46, individually labeled 46a, 46b, 46c, and 46d, configured to receive a ground wire from one of the external devices 14. In some cases, at least some of the external devices 14 may not include a separate ground wire. In some cases, each power output 24 may include a power rail that carries each of a positive (+) wire terminal 42, a negative (-) wire terminal 44, and a ground terminal 46. In some cases, the power wires of selected ones of the external devices 14 are connected to the selected power output 24 of the control panel 12 according to the desired user-assigned state of the selected power output 24 of the selected external device 14.

[0028] Figure 3 4 is a schematic block diagram showing an exemplary control panel 48. The exemplary control panel 48 can be considered as an example of the control panel 12 ( Figure 1 ). In some cases, features of the control panel 48 may be considered to be implemented within the control panel 12. As shown, the control panel 48 includes a main power bus 50 extending from the main power input 16 to each power output 24. In some cases, each power output 24 may be powered by the main power from the main power input 16 as long as the main power is available to the main power input 16. The control panel 48 includes a backup power bus 52 extending from the backup power input 20 to each of the plurality of power relays 54 individually labeled as 54a, 54b, 54c, and 54d. Although the main power bus 50 and the backup power bus 52 are schematically shown as a single line, it should be understood that the main power bus 50 and the backup power bus 52 may each include several different conductors, including a positive (+) conductor, a negative (-) conductor, and in some cases, a ground conductor.

[0029] Each power relay (or power transistor) 54 can be controlled by the controller 26, for example, so that the controller 26 determines which power relay 54 is actuated to provide backup power from the backup power input 20 to a particular power output 24. This allows the controller 26 to provide backup power from the backup power input 20 to a specific power output 24 that has been designated by the user as being powered by the main power source 18 ( Figure 1 ) and backup power supply 22( Figure 1 ) power output terminal 24. Other power output terminals in the power output terminal 24 receive the main power from the main power input terminal 16, but do not receive the backup power from the backup power input terminal 20.

[0030] Figure 4 is a schematic block diagram illustrating an exemplary system 60. The exemplary system 60 includes a security control panel 62. The security control panel 62 includes a main power input 64 configured to receive a 12 volt main power supply. The security control panel 62 includes a backup power input 66 configured to receive a first backup power supply of 12 volts and a second backup power supply of 12 volts. The security control panel 62 includes a number of power outputs 68, including an AUX 1 power output 68a, an AUX 2 power output 68b, and an AUX 3 power output 68c. Although not shown, the security control panel 62 may include a controller 26 and a UI 28 that allows a user to specify which power outputs 68 are designated to receive only main power and which power outputs 68 are designated to also receive backup power when main power is unavailable. Each power output 68 is operatively coupled to a power line pair 70 , including a power line pair 70 a operatively coupled to power output 68 a , a power line pair 70 b operatively coupled to power output 68 b , and a power line pair 70 c operatively coupled to power output 68 c .

[0031] For example, the AUX 1 power output 68a may be designated to receive main power when main power is available and to receive backup power when main power is not available. The AUX 3 power output 68c may be designated to receive main power when main power is available and not to receive backup power when main power is not available. A plurality of safety devices such as a motion sensor 72, a door sensor 74, a seismic sensor 76, and an alarm 78 are operatively coupled to the power line pair 70a and thereby to the AUX 1 power output 68a via a zone expander 80. In some cases, the safety devices may be directly coupled to the power line pair 70a or directly coupled to the AUX 1 power output 68a. Several other devices including a temperature sensor 82, a lighting sensor 84, and a water level sensor 86 are operatively coupled to the power line pair 70c and thereby to the AUX 3 power output 68c via another zone expander 80. In some cases, devices 82, 84, and 86 may be coupled directly to power line pair 70c or directly to AUX 3 power output 68c.

[0032] Figure 5A and Figure 5B 1 is a flow chart that collectively illustrates an exemplary method 90 for configuring a security system including a control panel, such as the control panel 12, and a plurality of security system components, such as the external device 14. The method 90 includes displaying a user interface that allows a user to select which of a plurality of power rails (e.g., power outputs) of the control panel receive power when a primary power source is available but do not receive power from a backup power source when the primary power source is not available, and which of a plurality of power rails of the control panel receive power when the primary power source is available and also receive power from a backup power source when the primary power source is not available, as indicated by block 92. For those power rails selected to receive power when the primary power source is available but do not receive power from the backup power source when the primary power source is not available, power is applied when the primary power source is available and power is not applied from the backup power source when the primary power source is not available, as indicated by block 94. For those power rails selected to receive power when the primary power source is available and receive power from the backup power source when the primary power source is not available, power is applied when the primary power source is available and power is applied from the backup power source when the primary power source is not available, as indicated by block 96.

[0033] Method 90 includes determining a first plurality of security system components that need to remain powered when the main power source is unavailable and a second plurality of security system components that do not need to remain powered when the main power source is unavailable, as shown in box 98. For example, the first plurality of security system components may include one or more components that are considered critical to the operation of the security system, such as a control panel, a motion sensor, a door sensor, a window sensor, a seismic sensor, and an alarm. The second plurality of security system components may include one or more components that are considered not critical to the operation of the security system, such as a temperature sensor, a lighting sensor, and a water level sensor. The first plurality of security system components are field-connected to one or more power rails of a control panel specified by a user to receive power from a backup power source when the main power source is unavailable, as shown in box 100. Continue with reference to Figure 5B , method 90 includes field connecting a second plurality of security system components to one or more power rails of a control panel specified by a user to not receive power from a backup power source when the primary power source is unavailable, as indicated at block 102 .

[0034] In some cases, the method 90 may also include displaying a user interface that allows a user to select a security system component from the first plurality of security system components, as shown at block 104. The user may be allowed to configure, via the user interface, a first set of operating parameters for controlling the selected security system component when primary power is available, and a second set of operating parameters for controlling the selected security system component when primary power is unavailable, as shown at block 106. In some cases, the method 90 may include automatically operating the selected security system component according to the first set of operating parameters when primary power is available, as shown at block 108, and automatically operating the selected security system component according to the second set of operating parameters when primary power is unavailable, as shown at block 110.

[0035] In some cases, the controller 26 may be configured to limit or even prevent a user from performing certain diagnostic tests or maintenance tasks when primary power is unavailable, even if the device or devices in question are powered by one of the power outputs 24 that is designated to receive backup power when primary power is unavailable. An illustrative example is an alarm test that involves sounding a siren to confirm that the siren will function in the event that a possible alarm or other emergency situation would require its use. FIG. 6A to FIG. 6D are screen shots showing the steps to request an alarm test, which is not allowed when backup power is on.

[0036] Fig. 6A 2 shows a screen 112 that the controller 26 may generate and display on the UI 28. Among the options listed is a test mode option 114. Figure 6BAs shown, selecting the test mode option 114 causes the controller 26 to generate and display a screen 116. The screen 116 displays a list of possible test modes, one of which is an alarm test mode 118. Figure 6C As shown, selecting alarm test mode 118 causes controller 26 to generate and display screen 120. Screen 120 includes a number of options for the user to select, including which zone or area they wish to perform the alarm test in, including a zone 3 option 122. Fig.6D As shown, selecting the zone 3 option 122 causes the controller 26 to generate and display a screen 124. The screen 124 confirms the selected zone and includes a message strip 126 that informs the user that testing is not available because main power is not currently available to the alarms in zone 3. The screen 124 also provides an exit test button 128 that allows the user to exit the menu. Other exemplary diagnostic tests or maintenance tasks that may be disabled when main power is unavailable and running on backup power include the following: Figure 6B A walking test, an RF signal strength test, and an alarm signal test are shown. However, these are merely examples.

[0037] Although several exemplary embodiments of the present disclosure have been described in this manner, it will be readily understood by those skilled in the art that other embodiments may be made and used within the scope of the claims appended hereto. However, it should be understood that the present disclosure is in many respects merely illustrative. Details (especially details related to shape, size, arrangement of parts, and exclusion and order of steps) may be changed without exceeding the scope of the present disclosure. Of course, the scope of the present disclosure is defined in the language of the appended claims.

Claims

1. A control panel, comprising: a main power input terminal, the main power input terminal being used to receive main power from a main power source; A backup power input terminal, the backup power input terminal is used to receive backup power from a backup power supply; a plurality of power output terminals, the plurality of power output terminals being used to supply power to one or more external devices outside the control panel; a controller operatively coupled to the primary power input, the backup power input, and the plurality of power outputs, wherein the controller is configured to: Receiving a user assigned state for each power output of one or more power outputs of the plurality of power outputs, wherein the user assigned state is one of: a first state in which the corresponding power output provides the primary power received at the primary power input when primary power is available and provides backup power received at the backup power input when primary power is unavailable; a second state in which the corresponding power output provides the main power received at the main power input when the main power is available, but does not provide the backup power received at the backup power input when the main power is unavailable; and The one or more power output terminals of the plurality of power output terminals are controlled according to the corresponding user assigned status.

2. The control panel according to claim 1, wherein: The controller is configured to: receiving an updated user assigned state of a selected power outlet among the plurality of power outlets; as well as A selected power output terminal of the plurality of power output terminals is controlled according to the updated user assigned state.

3. The control panel according to claim 1, wherein: The controller receives the user assigned status of each of one or more of the plurality of power outputs via a user interface.

4. The control panel according to claim 1, wherein: Each of the multiple power output terminals includes one or more wire connectors, which are used to connect the corresponding power output terminal among the multiple power output terminals to one or more power lines corresponding to one or more external devices among the external devices, and wherein, according to the desired user assigned state of a selected power output terminal among the multiple power output terminals of the control panel for a selected external device among the external devices, the power line of the selected external device among the external devices is connected to the selected power output terminal among the multiple power output terminals.

5. The control panel according to claim 4, wherein: Each power output of the plurality of power outputs includes a power rail carrying a corresponding one or more wire connectors.

6. The control panel according to claim 1, wherein: The control panel includes one of the following: Security system control panels; and Smart power panel.

7. The control panel according to claim 1, wherein: The controller is configured to: automatically enabling one or more maintenance functions and / or test functions of the control panel when the main power is available; and When the main power is unavailable, one or more of the maintenance functions and / or test functions are automatically disabled.

8. A method of configuring a security system, the security system comprising a control panel and a plurality of security system components, the method comprising: displaying a user interface that allows a user to select which of a plurality of power rails of the control panel receive power when a primary power source is available but do not receive power from a backup power source when the primary power source is unavailable, and which of the plurality of power rails of the control panel receive power when the primary power source is available and also receive power from the backup power source when the primary power source is unavailable; for those power rails selected to receive power when the primary power source is available but not to receive power from the backup power source when the primary power source is unavailable, applying power when the primary power source is available and not applying power from the backup power source when the primary power source is unavailable; for those power rails selected to receive power when the primary power source is available and to receive power from the backup power source when the primary power source is unavailable, applying power when the primary power source is available and applying power from the backup power source when the primary power source is unavailable; determining a first group of the plurality of safety system components that need to remain powered when the primary power source is unavailable and a second group of the plurality of safety system components that do not need to remain powered when the primary power source is unavailable; field connecting said first group of said plurality of security system components to one or more power rails of said control panel, said one or more power rails being designated to receive power from said backup power source when said primary power source is unavailable; as well as Field connecting the second plurality of security system components to one or more power rails of the control panel, the one or more power rails being designated not to receive power from the backup power source when the primary power source is unavailable.

9. The method according to claim 8, wherein: said first set of said plurality of security system components comprises one or more of a motion sensor, a door sensor, a window sensor, a seismic sensor, and a sirens; and The second set of the plurality of safety system components includes one or more of a temperature sensor, a lighting sensor, and a water level sensor.

10. The method according to claim 8, further comprising: displaying a user interface that allows a user to select a security system component from the first plurality of security system components; allowing the user, via the user interface, to configure a first set of operating parameters for the selected security system components for controlling the selected security system components when the primary power source is available and a second set of operating parameters for controlling the selected security system components when the primary power source is unavailable; automatically operating selected safety system components according to said first set of operating parameters when said primary power source is available; as well as When the primary power source is unavailable, selected safety system components are automatically operated according to the second set of operating parameters.

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