User manual

Publication 2092-UM001D-EN-P — July 2005
6-4 Maintaining and Troubleshooting Your Ultra1500
Figure 6.2
Operational Drive Displays
General Troubleshooting
Refer to the Fault Codes section below to identify problems, potential causes,
and appropriate actions to resolve the problems. If problems persist after
attempting to troubleshoot the system, please contact your Allen-Bradley
representative for further assistance. To determine if your Ultra1500
drive has
an error, refer to the table immediately below.
Overtravel Condition
Overtravel displays (see the following table) occur if the drive detects an
overtravel condition.
Character: 0 1 2 3 4 5
rdY = Drive is disabled, but ready to be enabled
run = Drive is enabled and motor is under control
Status: Characters 3 through 5
Middle Row = Active if velocity exceeds Up To Speed parameter
Row Display: Character 2
Top Row = Inactive for any Current mode
Active if Velocity Mode. and Velocity Error is within the velocity window
Active if Follower Mode. and Position Error is within following error setting
Bottom Row = Active for hall startup motors once the commutation angle is set
Active for TL-Series motor once the first index pulse occurs
C = Analog Current
d = Dual Current Command
Control Mode: Characters 0 and 1
F = Follower
S = Analog Speed
P = Preset Velocity
If the Main Power and Control Power LEDs are ON
and the Status Display on the Drive is:
Then:
Displays ‘rdy’ in the three right-most characters The Ultra1500 drive is ready.
Displays ‘Pot’ or ‘not’
The Ultra1500 drive encountered an
Overtravel Condition and motion restrictions
are in effect.
Displays a three-digit warning message
The Ultra1500 drive is functional, but a drive
warning is displayed.
Proceed to the section Warning Messages
below.
Alternates between a three-digit error code and
a six-digit text message
An Ultra1500 drive error has occurred.
Proceed to the section Error Displays below.
Overtravel Display Possible Cause Action/Solution
Positive Overtravel
A Positive Overtravel condition is
detected.
Apply motion in a negative direction to back
off limit.
Negative Overtravel
A Negative Overtravel condition is
detected.
Apply motion in a positive direction to back
off limit.