FIS stands for First Initial Sequence. It’s the initial programming and learn procedure that sets critical configuration values and allows the operator to learn travel. If FIS is not completed, the door may not operate correctly.

For the full step-by-step instructions, use our guide: MC521 Pro FIS Setup Guide.

You should run FIS any time:

• You install a new MC521 Pro control
• You replace the control or major components
• Memory has been cleared or lost
• The door is not opening/closing correctly due to programming or learn issues

FIS ensures your motor count, handing, switch type, and learn cycle are correctly stored.

A0 typically indicates the control is in the programming flow and has accepted a change or is ready for the next step during FIS. If you see A0 repeatedly, confirm you are following the sequence in order and that you are using the correct values for your door configuration.

Reference: MC521 Pro FIS Setup PDF.

A1 typically indicates the control has accepted the FIS parameter selections (such as motor count and handing) and is advancing through the programming procedure.

If you cannot reach A1, confirm the keypad is unlocked at parameter 99 and that memory was cleared at parameter 96 before proceeding.

A2 indicates the learn cycle has completed successfully and the control is ready for normal operation.

If you never reach A2, confirm the function switch sequence was done correctly and that the door is able to move freely through a full open and close cycle.

• Unlock: Go to parameter 99 and set the value to 00.
• Lock: Go to parameter 99 and set the value to 01.

Important: Locking the keypad helps retain programming and prevents accidental setting changes.

During FIS, go to parameter 00:

• 01 = one motor
• 02 = two motors

If you choose the wrong motor count, the operator may run incorrectly or fail to complete learning.

During FIS, go to parameter 01:

• 01 = left-hand slide
• 00 = right-hand slide

If the handing is incorrect, the door may attempt to learn in the wrong direction or behave unpredictably.

During FIS, go to parameter 11:

• 01 = rocker switch
• 00 = rotary switch

Setting the wrong switch type can cause mode selection problems (Auto, Hold Open, Off/Closed, etc.).

If you do not have an electric lock installed, you can typically skip the lock configuration step. If a lock is installed, parameter 07 is used to select:

• 00 = fail-safe
• 01 = fail-secure

If you are unsure whether your package includes a lock, contact our team and we can help you confirm your configuration.

If the learn cycle will not complete, check the following:

• Door panels roll freely and are not binding
• There are no obstructions in the track/threshold
• Correct motor count and handing were selected
• Correct switch type was selected
• Safety devices are not triggering during learn (in some cases, temporarily isolating inputs for troubleshooting may be required by a qualified tech)

Use the complete guide to verify each step: MC521 Pro FIS Setup Guide.

Automatic Door and Hardware stocks a full line of replacement parts for Stanley DuraGlide 2000-3000 automatic sliding doors, including controllers, motors, encoders, sensors, harnesses, and accessories.

Shop Stanley DuraGlide 2000-3000 Parts

If you’re not sure which MC521 Pro version you have or which settings apply to your door, send a photo of your control, wiring, and function switch to our support team. We’ll help you confirm the correct setup and parts.

Call 877-412-3667 or email [email protected].