0x2101 - Drive bus voltage
DC link circuit voltage
Max user bus voltage
Min user bus voltage
This object allows to read the bus voltage of the driver as well as to assign the limits of voltage accepted by the system.
Depending if an external shunt is available the reaction of an out of range situation will be different:
- Shunt not available: Emergency message is sent and a Fault reaction is executed.
- Shunt available: Shunt is activated if voltage is higher than maximum. Emergency message is sent and Fault reaction executed if voltage is below the minimum.
This object only modifies the user limits; the absolute limits are factory prefixed according to the hardware specifications and cannot be modified. When the actual bus voltage is out of the absolute range an Emergency message is sent and the system executes a Fault reaction.
Setting maximum user bus voltage below the actual power supply voltage may lead to serious damage of the device. Some drivers include internal shunt resistors that would be activated for a long time and cause serious overheat.