IMU LEDs

The IMU-IGM-A1, IMU-IGM-S1 and IMU Enclosure (IMU-HG1900, IMU-ISA-100C, IMU-LN200, IMU-µIMU-IC) have LEDs that provide the IMUs basic status information.

IMU‑IGM-A1 and IMU-IGM-S1 LEDs

LED

Off

On

Flash Slow (1 Hz)

Flash Fast (3 Hz)

Power

(Red)

No power to unit

Unit is powered on

UNKNOWN or UNSUPPORTED IMU

Programming error

GNSS1

(Green)

Waiting for GPS time

Time Status FINE or FINESTEERING

Time status COARSE, COARSESTEERING or FREEWHEELING

N/A

INS1

(Green)

Not connected to IMU

Connected to IMU

N/A

Bootup or loading firmware
IMU Enclosure LEDs

LED

Off

On
(Red)

On
(Green)

Flash Slow
(Yellow, 1 Hz)

Flash Fast
(Yellow, 3 Hz)

Power

No power to IMU Enclosure.

An error occurred during boot up or initialization.

IMU Enclosure is powered on with no errors detected during boot up or initialization.

Boot up and IMU initialization.

N/A

COM

No communication between IMU Enclosure and GNSS receiver.

N/A

IMU Enclosure is transmitting and receiving data without errors.

IMU Enclosure is receiving data from the receiver, but not transmitting data.

IMU Enclosure is transmitting data to the receiver, but not receiving data.