Upon powering on the crane today and attempting to use the main hoist, the following faults were present:

1. Main Hoist East Drum North Motor Drive Fault (700VFD)
2. Main Hoist West Drum South Motor Drive Fault (900VFD)
3. Main Hoist East Drum North Motor Drive Not Ready (700VFD)

Note that the auxiliary hoists functioned as normal.

Upon power cycling the crane to reset, the faults disappeared, and the main hoist functioned normally again. The root cause of the issue is unknown. It is suspected to be related to either prolonged inactivity, improper safety reset sequence, or the battery being removed from the pendant. This issue will be monitored for re-occurrence.