0x200A I2t

Name Index:Sub Type Bit Size Options Unit Access PDO Mapping
Enabled 0x200A:1 BOOL 1
Disabled 0
Enabled 1
readwrite

Enables or disables the I2t protection feature.

Name Index:Sub Type Bit Size Min Data Max Data Default Data Unit Access PDO Mapping
Peak time 0x200A:2 UDINT 32 0 ms readwrite

This field determines how long the motor can operate while peak rms current is flowing in its windings. This time should be determined by motor manufacturer.

Name Index:Sub Type Bit Size Min Data Max Data Default Data Unit Access PDO Mapping
Percent max 0x200A:3 USINT 8 0 readonly (default)

This is an index of your motor "over-heat" status. It changes between 0 and 100. At 0%, the motor is not over heated. At 100% the motor is at its maximum allowed over heated condition.

Name Index:Sub Type Bit Size Min Data Max Data Default Data Unit Access PDO Mapping
Protection active 0x200A:4 BOOL 1 0 readonly (default)

As long as it is 0, i2t protection is not putting any limit on maximum rms current of your motor. Once it is 1 it means that i2t protection is limiting the "maximum rms currents" of your motor to its rated value.