0x2102 - Peak current time

This register defines the maximum time the drive is able to source the peak current.

This register allows to configure the I²T parameters to protect the drive and/or motor in front of exceeding their thermal limit. It is a complementary protection that works together with temperature limits and current derating.

See Drive protections.

The main functionality of the I2T is to detect an instantaneous exceed of thermal energy on the drive. It covers the case where the temperature sensors are too slow to detect a dangerous situation.

This protection is always active. For modes of operation where current loop is not enabled, instead of limiting the current a fault is generated.

There is a maximum configurable I²T. If a user sets an I²T less restrictive than the allowed, the drive overwrites the user configuration with its own. The applied nominal current is the smaller between both configurations.

If maximum configurable I²T is detected before the user I²T levels, a fault is generated independently if the current loop is enabled or not.

Max current limit is applied to the total motor current →