Liquid Cooling Low Level

What does LC Level mean?

This fault indicates that the liquid cooling system has detected a low coolant level. This is critical for drives utilizing liquid cooling to dissipate heat from power components. Insufficient coolant can lead to rapid overheating of the VSD's power components, as heat cannot be effectively transferred away. If left unaddressed, it risks severe internal damage or complete failure of the drive due to thermal stress.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Top up the coolant to the recommended level using the specified type of coolant.

2. 4

   Verify the function of the level sensor itself by manually triggering it if possible, to rule out a sensor malfunction.