User Manual

Preventive Maintenance and
Troubleshooting Common Drive Problems
Appendix B
B-13
5. The drive will not ramptostop -- No fault is displayed.
Is Parameter 1 1 Stop Select set to ramptostop? Set Parameter 1 1 to 0.
Yes
Does Parameter 59 show an OU fault stored?
Yes
The drive is tripping on overvoltage during decel. Refer to page B3.
No
No
Is the DC Hold Frequency set to high -- Is parameter 12 set to 00.50 Hz?
No
Set Parameter 12 to 00.50 Hz.
Yes
Is Parameter 18 Decel Frequency Hold on -- Does the motor have an
overhauling load?
Yes
No
If Parameter 18 Decel Frequency Hold is set to 1 (On), an overhauling load
may cause the decel ramp to hold at one frequency for an extended period.
This may cause ramptostop commands to appear to be nonfunctional.
Contact your nearest AB representative for application assistance.