VBUS.UVFTHRESH
Description
This parameter is the DC bus undervoltage fault threshold. When the measured DC bus voltage falls below the threshold, an undervoltage fault is thrown for each enabled axis.
Examples
Usage
The drive configures the minimum, maximum, and default values for this parameter based on power electronics ratings.
When an axis is enabled, and the measured DC bus voltage VBUS.VALUE is less than VBUS.UVFTHRESH, the drive throws Fault 2007: Bus under voltage.
When an axis is disabled and VBUS.VALUE is less than VBUS.UVTHRESH, the drive prevents the axis from enabling.
Code
The following example demonstrates the DC bus undervoltage fault check when Axis 1 is enabled and Axis 2 is disabled. The fault is reported on Axis 1 only.
--> VBUS.UVFTHRESH 100 --> VBUS.UVFTHRESH 100 [Vdc] --> VBUS.VALUE 162.297 [Vdc] --> AXIS1.EN --> AXIS1.ACTIVE 1 --> AXIS2.ACTIVE 0 --> VBUS.VALUE 96.895 [Vdc] --> AXIS1.ACTIVE 0 --> DRV.FAULTS 1-2007: Bus under voltage.
Context
For more information on DC bus voltage protection, refer to Power View and Regeneration.
Versions
| Action | Version | Notes |
|---|---|---|
| Implemented | 02-00-00-000 |
General Information
| Type | Read/Write |
| Units | Vdc |
| Range | Dependent on drive model |
| Default Value | Dependent on drive model |
| Data Type | Integer |
| See Also | VBUS.VALUE, VBUS.UVWTHRESH |
|
Stored in Non Volatile Memory |
Yes |
Variants Supported
All variants are supported.
