Lutron Maestro MA-T51MNB Advanced Programming Mode

Overview

Maestro timers feature Advanced Programming Mode (APM) that allows users to customize control to meet their specific needs. This document complements instruction sheets. Before entering APM, it is important to fully understand the included features. For a recap of these features and additional instructions, consult your product's corresponding pages.

Maestro Timer Switch (MA-T51MNB)

The Maestro Timer Switch (MA-T51MNB) is described as follows:

• Timer Indicator Lights (TIL) 1 to 5: These lights indicate various settings and modes.
• Timer Display: Area showing timer status.
• Push Button (B): The primary button for interaction and selection.
• Up Rocker: Used to increase settings or navigate options.
• Down Rocker: Used to decrease settings or navigate options.
• FASS Switch: Front Accessible Service Switch. This switch is used to enter programming modes. It has a tab that can be pulled to replace the bulb.

Glossary

• Charge: The fan and/or light controlled by the switch or timer.
• FASS: Front Accessible Service Switch. A tab pulls out at the bottom of the product to replace bulbs and enter Advanced Programming Mode (APM); also referred to as the air gap.
• Normal Operation: Standard timer use where indicator lights do not flash.
• Slow Flashing: Indicates entry into APM; timer indicator lights (TIL) flash slowly at a rate of 4 flashes per second.
• Fast Flashing: Indicates entry into Programming parameters; timer indicator lights (TIL) flash rapidly at a rate of 8 flashes per second.
• Unlocked Preset: The timer setting that allows the device to turn on to the last selected duration.
• Locked Preset: A programmable timer setting to which the device will always turn on.
• Default Parameter: Original preset programming parameters on which the device is programmed upon first use.

Advanced Programming Mode

Explanation of Advanced Timer Features

Preset Options: Users have two options for the timer's preset duration setting: Locked Preset and Unlocked Preset.

• Locked Preset: When programmed for a locked preset, the timer will always return to the predetermined "locked" setting each time it turns off, either by a single button press or by countdown expiry.
• Unlocked Preset: When programmed for an unlocked preset, the timer will return to the duration setting it was last set to when the timer was activated.

What do you want? If you frequently use the same duration setting and do not want to change it each time you use the timer, choose the Locked Preset option. If you frequently use different duration settings, select the Unlocked Preset option.

Bypass Options: Users have two options for the timer's maximum level, accessed by pressing the push button once or twice: the "On" setting (Activate Bypass) and the 45-minute setting (Deactivate Bypass).

What do you want? If you want the timer to always expire when activated by pressing the push button, select the "Deactivate Bypass" option. This is useful in situations where you want the timer to always turn off automatically, even if the user presses the button twice. If you want to be able to access the "On" setting, select the "Activate Bypass" option.

Load Flashing Option: When this option is activated, the load flashes for one second when the timer reaches one minute.

What do you want? If the timer is connected to a lighting load, this provides a more visible indication (the connected lighting load will flash) that the countdown is at 1 minute. Note: Not recommended for a fan load.

Using the Advanced Programming Mode

The Advanced Programming Mode consists of two operating modes for user interaction: the Main Menu mode and the Selection mode.

• Main Menu Mode: Allows the user to choose the feature they wish to modify.
• Selection Mode: Allows the user to modify the parameter for the feature selected in the Main Menu mode.

Note: Once a feature is modified, the change is saved immediately.

Accessing Main Menu Mode (Refer to the image on Page 1):

1. Pull the FASS switch to the "Off" position.
2. Press and hold the product's push button (B).
3. Push the FASS switch to the "On" position while keeping the button pressed for approximately 5 seconds. The bottom TIL will flash to indicate entry into Advanced Programming Mode. The load will also be activated in APM.

Note: If there is no activity for 1 minute, the timer will automatically exit Advanced Programming Mode.

Accessing Selection Menu Mode:

1. Press the [up-arrow] or [down-arrow] rocker to change the TIL position to indicate the feature you wish to modify:
   • TIL3: Load Flashing Option
   • TIL2: Bypass Option
   • TIL1: Preset Option
2. Press the push button (B) once, and the feature will be selected for modification.

Diagram Description: The switch display shows TILs corresponding to options: TIL3 for Load Flashing, TIL2 for Bypass, and TIL1 for Preset.

Timer APM Parameters

Parameter 1: Preset Option Selection

What it does: The preset option determines the turn-off setting the timer activates to when you press the button. Users have two options for the timer's preset duration setting: Locked Preset and Unlocked Preset.

• Locked Preset: When programmed for a locked preset, the timer will always return to the predetermined "locked" setting each time it turns off, either by a single button press or by countdown expiry.
• Unlocked Preset: When programmed for an unlocked preset, the timer will return to the duration setting it was last set to when the timer was activated.

Default Parameter: Unlocked Preset

What do you want? If you frequently use the same duration setting and do not want to change it each time you use the timer, choose the Locked Preset option. If you frequently use different duration settings, select the Unlocked Preset option.

Directives:

1. In Main Menu mode, press the [up-arrow] or [down-arrow] rocker until TIL1 is in slow flashing mode.
2. Press the [button-B] once.

Selecting Locked Preset:

1. Press the [up-arrow] or [down-arrow] rocker until TILs 1 through 5 light up to set the duration level to the desired locked preset. Select the TIL that corresponds to your desired timeout for the locked preset. If all TILs are off, the timer is in the unlocked default state.
2. Press the [button-B] once to return to the main menu.

Selecting Unlocked Preset:

1. Press the [up-arrow] rocker until the fast flashing of TIL1 disappears.
2. Press the [button-B] once to save the selection and return to the main menu.

Notes: If there is no button activity for 1 minute, the timer automatically saves, exits APM, and returns to normal operation. To immediately save and exit APM, press and hold [button-B] until the TILs stop flashing.

Timer APM Parameters (Continued)

Parameter 2: Bypass Option Selection

What it does: This parameter defines the timer level you access by pressing the [button-B] twice. Users have two options for the timer's maximum level: the "On" setting (Activate Bypass) and the 45-minute setting (Deactivate Bypass).

Default Parameter: "On" (Activate Bypass)

What do you want? If you want the "On" setting without automatic shutoff, select the "Activate Bypass" option. If you want the 45-minute setting without automatic shutoff, select the "Deactivate Bypass" option.

Directives:

1. In Main Menu mode, press the [up-arrow] or [down-arrow] rocker until TIL2 is in slow flashing mode.
2. Press the [button-B] once. A rapidly flashing TIL will indicate the bypass option (button double-press level).
3. Press the [up-arrow] or [down-arrow] rocker to set the desired bypass option (button double-press level).
4. Press the [button-B] once to return to the main menu.

Diagram Description: The switch display shows TILs corresponding to bypass options: TIL5 for Activate Bypass (default), TIL4 for Deactivate Bypass, and TIL2 for the Bypass Option. The table shows TIL position 5 corresponds to "Activate (default)" and TIL position 4 corresponds to "45 minutes".

Notes: If there is no button activity for 1 minute, the timer automatically saves, exits APM, and returns to normal operation. To immediately save and exit APM, press and hold [button-B] until the TILs stop flashing.

Timer APM Parameters (Continued)

Parameter 3: Load Flashing Option Selection

What it does: When this option is activated, the load flashes for one second when the timer reaches one minute.

Default Parameter: Disabled

What do I want? If the timer is connected to a lighting load, this provides a more visible indication (the connected lighting load will flash) that the countdown is at 1 minute.

Directives:

1. In Main Menu mode, press the [up-arrow] or [down-arrow] rocker until TIL3 is in slow flashing mode.
2. Press the [button-B] once. A rapidly flashing TIL will indicate the load flashing setting.
3. Press the [up-arrow] or [down-arrow] rocker to set the desired parameter.
4. Press the [button-B] once to return to the main menu.

Diagram Description: The switch display shows TILs corresponding to flashing settings: TIL5 for Activate Load Flashing, TIL4 for Deactivate Load Flashing (default), and TIL3 for Load Flashing Option. The table shows TIL position 5 corresponds to "Activate" and TIL position 4 corresponds to "Deactivate (default)".

Notes: If there is no button activity for 1 minute, the timer automatically saves, exits APM, and returns to normal operation. To immediately save and exit APM, press and hold [button-B] until the TILs stop flashing.

Exiting Main Menu Mode

1. Press and hold the push button (B) for 4 seconds to exit the main menu. You can also wait 1 minute or pull the FASS switch, and the timer will automatically exit Advanced Programming Mode.

Notes: If there is no button activity for 1 minute, the timer automatically saves, exits APM, and returns to normal operation. To immediately save and exit APM, press and hold [button-B] until the TILs stop flashing.

Step-by-Step Timer Example

Accessing Programming Mode:

1. Pull the FASS switch towards you.
2. Press and hold the product's push button (B).
3. Press the FASS switch again while keeping the [button-B] pressed for approximately 5 seconds until TIL1 flashes rapidly.

Continuing Programming:

1. If TIL1 does not flash, press the [up-arrow] or [down-arrow] rocker until the TIL flashes, to select the preset option.
2. Press the [button-B] once (push button activate/deactivate).
3. Using the [up-arrow] or [down-arrow] rocker, select TIL3 for a 30-minute locked preset.
4. Press the [button-B] once (push button activate/deactivate) to return to the main menu.
5. Use the [up-arrow] or [down-arrow] rocker to select TIL2 for the bypass option.
6. Press the [button-B] once (push button activate/deactivate), and TIL4 or TIL5 will flash to indicate the current bypass option.
7. Press the [button-B] once (push button activate/deactivate) to return to the main menu.
8. Press the [button-B] once (push button activate/deactivate) to save.
9. Press and hold the [button-B] for 5 seconds until the TIL stops flashing to save and exit APM for normal operation.

Shortcuts and Additional Features

Restoring Factory Defaults

The timer can be restored to its original factory settings, allowing the programmer to test different settings without risk.

Factory Settings:

• Load Flashing: Disabled
• Bypass: Enabled
• Preset Option: Unlocked (no TIL flashes)

Restoring Factory Defaults Procedure:

1. Pull the FASS switch to the "Off" position (removed), and wait 5 seconds.
2. Press and hold the [button-B]. While holding [button-B], push the FASS switch to the "On" position (inserted) and continue holding [button-B] for approximately 15 seconds. Note: The timer switch will enter APM; continue holding for the remaining 15 seconds.
3. The load (light) turns off and then back on. This indicates a successful factory reset.

Note: If you perform the factory reset sequence, you will lose your selected APM parameters.

Contact Information

Lutron, Maestro, and associated trade dress and logos are trademarks or registered trademarks of Lutron Electronics Co., Inc. in the United States and/or other countries.

Lutron Telephone Numbers

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www.lutron.com/support

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Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299, USA
Part No. 048848 Rev. B 04/2025