0x200A I2t

Name	Index:Sub	Type	Bit Size	Options			Unit	Access	PDO Mapping
Enabled	0x200A:1	USINT	8	Disabled 0 Enabled (current limit at 100%) 1 Enabled (error at 100%) 2				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		3600000	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 250. At 0%, the motor is not over heated. When this value reaches 100% the motor is at its maximum allowed over heated condition, and if I2t is enabled, the maximum rms current will be limited. This limitation is going to be removed when the percentage goes down to 50% or less.
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.