The secondary or physical arming switch provides a physical means to lock out motor drive. When this switch is in the off position the unit will not arm and therefore be unable to drive.

For details on how to wire the secondary arming switch and what constitutes the switch being in the ‘armed’ and ‘disarmed’ positions see the integration guide: 

There is a configurable timeout for the arming switch to be off before a disarm event triggers, this is in place to prevent noise from causing the unit to disarm. See the communication settings: 

A periodic status beep can be used to reflect the state of the secondary arming switch. For more information on status beeps see:

Protection Systems

Secondary Arming Switch

model_name

Motor Starting Beep

microDRIVE MP

Getting Started

Wiring the Unit

Mounting and Cooling

Power Supply

Integration

Drive Modes

Drive Topology

Regenerative Power (AFW)

Stopping Behavior

Drive Tuning

Propeller Parking

Motor Drive

CAN Bus Signalling

Serial (DShot/PWM) Signalling

Input Priority System

Flight Controller Passthrough

Communications

Watchdog

Require Zero Throttle

Signal Timeout

Startup Hardware Checks

Safety and Protections

VTOL/Prop Parking

Using Fallback Signalling

Helicopters

Disabling Protections

Motor Temperature Sensing

Application Guide

Indicators Settings

Motor Drive Settings

Protection Systems Settings

Logging Settings

CAN Bus Settings

Communication Settings

Telemetry Settings

Prop Parking Settings

RPM Mode Settings

Settings

DroneCAN Telemetry

ARINC 825 Telemetry

Serial Telemetry

Telemetry

Status LED

Status Beeps

Indicators

Data Logging

Errors

Diagnostics

Troubleshooting

Change Log