Delta VP3000 Series - Page 429

Chapter 8 Troubleshooting｜VP3000
420
ID No.
Warning Name
Descriptions
24
Over slip
(oSL)
Over slip warning On the basis of the maximum slip (Pr. H5-50). When the
motor drive outputs at constant speed, F > H or F < H exceeds the level set via
Pr. H5-54, and it exceeds the time set via Pr. H5-55, oSL shows. oSL occurs in
induction motors only.
Action and Reset
Action Condition
When the drive outputs at constant speed, and F > H or F < H exceeds the Pr.
H5-54 level
Action Time
H5-55
Warning Setting Parameter
H5-48
0: Warning & continue OPER
1: Fault & Ramp to Stop
2: Fault & Auto-Decel
3: Fault & coast to stop
4: Fault & by Quick Stop Time
Reset Method
The oSL warning is automatically cleared when Pr. H5-48 = 0, the drive outputs
at constant speed, and F > H or F < H does not exceed the Pr. H5-54 level
anymore.
Reset Condition
No
Record
No
Cause
Corrective Actions
Any of the motor parameters in
parameter group 5 may be
incorrect
Check the motor parameter.
The load is too large
Reduce the loading.
Check if Pr. H5-54, Pr. H5-55, and
Pr. H5-48 are properly set.
Check the parameter settings for oSL protection.