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.

Fieldbus Information

EtherCAT CoE and CANopen

Command	Index	SubIndex	Data Type	Units	Float Scale	Access	PDO Mappable
VBUS.UVFTHRESH	300ah	02h	Unsigned16	-	-	Read/Write	No

EtherNet/IP

ID	Instance	Attribute	Name	Data Type	Access	User Mappable
2510	1	2510 (0x9ce)	VBUS.UVFTHRESH	Unsigned16	Read/Write	Yes

PROFINET

Parameter	PNU	Data Type	Access	Units
VBUS.UVFTHRESH	2510	Unsigned16	Read/Write	-