Fire Mode Enabled

What does 33 mean?

The drive's Fire mode is currently enabled, which intentionally disables certain drive protections to ensure continuous operation in emergency situations. This is an informational alarm indicating a specific operational state, and it resets automatically when Fire mode is disabled.

• Digital input configured for "Fire Mode Enable" (e.g., DI3) is active, intentionally putting the drive into emergency operation.
• Fieldbus command (e.g., Profibus, EtherCAT) bit for Fire Mode Enable is set, overriding normal protection functions.
• Fire mode activation parameter (e.g., P9-20) has been manually set to "Enabled" via the HMI or configuration software.
• External building management system (BMS) or fire alarm control panel has activated the drive's emergency mode.
• Stuck or shorted wiring on the digital input configured for fire mode activation (e.g., between DI3 and +24V).

Click steps to track your progress.

1. 1

   Verify the state of the digital input (e.g., DI3) configured for Fire Mode activation using a multimeter, ensuring it is not inadvertently active (e.g., 24VDC present).

2. 2

   Check the drive's operation mode parameter (e.g., P9-20 Fire Mode Status) to confirm if it has been manually set.

3. 3

   Examine the logic of the external control system (PLC, BMS) that interfaces with the drive's fire mode input/command.

4. 4

   Review the drive's parameter settings (e.g., P9-21 Fire Mode Action) to understand which protections are disabled in this mode.

5. 5

   To exit Fire Mode, deactivate the corresponding digital input (e.g., remove 24VDC from DI3) or change the HMI parameter (P9-20) back to "Disabled".