Rockwell Automation 1336VT 5-300 AMP (2.2-160KW) - Manual (Page 71)

Operation
Chapter 7
7-4
Programming and Display Panel
Freq P R
Enter P R
All Programming and Display Panels provide a means of displaying
different drive status conditions while providing pushbutton control for
selected viewing and parameter programming.
The Freq display is a three character display that shows:
Standby Status Display
The standby status of the drive when it is waiting for a drive start or jog
command.
Freq P R
Output Frequency Display
The drive output frequency appears when the drive is running.
Freq P R
Fault Display
Fault codes appear if the drive detects a fault condition.
Freq P R