Overtemperature protection
The chopper is disabled if the temperature of the brake resistor exceeds the limit value "I2T error level". The bit "I2T error" in the process data is set to TRUE.
The chopper is re-enabled when the temperature of the brake resistor falls below the limit value "I2T warn level". (Hysteresis)
Parameter
Index | Name | Description | Data type | Flags | Default |
|---|---|---|---|---|---|
8000:18 | I2T warn level | If the internal temperature exceeds this value, the bit "I2T warning " is set to TRUE. Unit: °C. | UINT16 | RW | 100dec |
8000:19 | I2T error level | The chopper is disabled if the internal temperature exceeds this value. The bit "I2T error" is set to TRUE. Unit: °C. | UINT16 | RW | 120dec |
Overtemperature warning
The bit "I2T warning" in the process data serves as an early warning system.
The bit is set to TRUE if the temperature of the brake resistor exceeds the limit value "I2T warn level". However, the chopper is not yet disabled. Therefore, you can still react to the warning.
Deactivate
You can disable the overtemperature protection by setting the parameter 8000:01 "Disable chopper on overtemperature" to FALSE.