Rockwell Automation SB3000 Configuration and Programming - Manual (Page 49)

Configuring the UDC Module’s Registers 3-31
Drive Warning Register (Continued) 203/1203
Reference In Limit Warning Bit 4
The Reference in Limit Warning bit is set if
the VDC reference (register 102/1102).is
less than the minimum or greater than the
maximum allowed, where:
Minimum = 1.1 * 1.414 * AC line VRMS
Maximum = 875 volts
Hex Value: 0010H
Sug. Var. Name: WRN_RIL@
Access: Read only
UDC Error Code: N/A
LED: N/A
In Bridge Test mode, this bit is used by the bridge test to indicate an illegal test
code. Refer to the Bridge Test Enable bit (register 100/1100, bit 2) and to
Appendix G for additional information on the bridge test.
Load Sharing Warning Bit 6
The Load Sharing Warning is set if a
problem occurs with current sharing
between parallel power modules. Hex Value: 0040H
Sug. Var. Name: WRN_SHR@
Access: Read only
UDC Error Code: N/A
LED: N/A
Bits 13, 14, or 15 in registers 204/1204, 220/1220, or 221/1221 will be set to indicate
the phase and the power module affected. Refer to the descriptions of these
registers for details.
Overtemperature Warning Bit 7
The Overtemperature Warning bit is set if
the warning level thermal switch in the
power module opens. Hex Value: 0080H
Sug. Var. Name: WRN_OT@
Access: Read only
UDC Error Code: N/A
LED: N/A
If power modules are connected in parallel, bit 12 is set in register 204/1204,
220/1220, or 221/1221 to indicate which power module is affected.
Bad Gain Data Warning Bit 8
The Bad Gain warning bit is set if a tunable
variable is changed to an illegal value while
the UDC task is running. The value will be
restored to its previous valid value by the
PMI Processor. Hex Value: 0100H
Sug. Var. Name: WRN_BGD@
Access: Read only
UDC Error Code: N/A
LED: N/A
For a description of the tunable variables, refer to Appendix B.