Larsen & Toubro C*2000 Series User Manual page 170

 Overload protection:
IOLT: When HD is used, IOLT (inverter Overload) protection is activated at 150% of the
inverter rated current for 1 minute and greater.
While ND is used, IOLT (inverter overload) is activated at 110% of the inverter rated
current for 1 minute.
OLT: OLT parameter F56 is set to 1, the output current exceeds the set value of F57 and
lasts the setting time of F58.
 The inverter is not provided with "Over speed Protection".
Cx2000 AC Drive
Chapter 12 Troubleshoot and maintenance
12-7