W2012 Detailed Troubleshooting Steps

Description

Warning 2012 occurs when mains voltage is turned on and the DC bus voltage charges to a steady state voltage greater than the threshold at which the regen circuits operates. When the warning occurs, the drive:

Prevents the inrush relay from closing.
Prevents the regen circuit from running.
Prevents axes from enabling.

Troubleshooting Steps

Warning 2012 indicates that the applied mains voltage is inconsistent with the VBUS.ACNOMINAL or VBUS.DCNOMINAL setting. These steps can help isolate and characterize the problem.

If the warning persists, please contact Kollmorgen support.

If VBUS.DCOPERATION = 0, check that VBUS.ACNOMINAL is set to a level that represents the actual AC line voltage.
If VBUS.DCOPERATION = 1, check that VBUS.DCNOMINAL is set to a level that represents the actual DC supply voltage.
Check VBUS.VALUE to verify that the measured DC bus voltage represents the actual AC line voltage or DC supply voltage.
Turn off the mains voltage and let the DC bus discharge. Wait until VBUS.VALUE is close to zero, then turn the mains voltage back on.

a. Check that the inrush relay closes by listening for an audible click and by examining the inrush disable bit in AXIS#.DISSOURCES .

b. Check that Warning 2012 is not reported.

c. Try to enable the axis and check that Fault 2020 is not reported.

Versions

Action	Version	Notes
Implemented	02-08-01-000	Fault introduced

General Information

Type	Power
Reaction	Disable axis
Clearable	Yes

Variants Supported