Delta VFD450C43S-00 - Page 827

Chapter 13 Warning CodesC2000 Plus
13-26
ID No. Display on LCD Keypad Warning Name Description
24
Over slip warning
(oSL)
Over slip warning.
By using the maximum slip (Pr.10-
29) as the base, when
the drive outputs at constant speed, and the F>H or F<H
exceeds Pr.07-29 level and Pr.07-30 set
ting time, 100%
Pr.07-29 = Pr.10-29.
Action and Reset
Action condition
When the drive outputs at constant speed, and F>H or F<H exceeds the Pr.07-
29 level
Action time Pr.07-30
Warning setting parameter
Pr.07-31=0 Warning
0: Warn and keep operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning
Reset method
When Pr.07-31=0 and
when the drive outputs at constant speed, and F>H or F<H
no longer exceeds the Pr.07-29 level, the oSL warning automatically clears.
Reset condition N/A
Record N/A
Cause Corrective Actions
Check if the motor parameter is
correct
Check the motor parameter.
The load is too large Decrease the loading.
Check if the settings for Pr.07-29,
Pr.07-30 and Pr.10-29 are
properly
set
Check the parameter settings for oSL protection.