Rockwell Automation SD3000 Drive Configuration, Programming User Manual
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UDC Module Ports A/B Status Register (Continued)
Bit:
6
Hex Value: 0040H
Sug. Var. Name:
N/A
Range:
N/A
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
Description:
The CCLK Communication Synchronization Error bit is set when two or more CCLK
counter ticks occur and no message is received.
Bit: 7
Hex Value: 0080H
Sug. Var. Name:
N/A
Range:
N/A
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
Description:
The External Loopback Data Error bit is set during the UDC module loopback test if the
transmit message does not match the receive message. This test is performed only at power up or
after a reset.
Bit: 8
Hex Value: 01
OOH
Sug. Var. Name:
N/A
Range:
N/A
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
Description:
The Missed Gains bit is set if gain data from the PMI could not be written because
memory was being written to when the gain values were received.
Bit: 9
Hex Value: 0200H
Sug. Var. Name:
N/A
Range:
N/A
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
Description:
The Multiplexed Data Verification Failure bit is set if data which is multiplexed into com-
mand/feedback messages does not verify correctly.
Bit:
10
Hex Value: 0400H
Sug. Var. Name:
N/A
Range:
N/A
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
Description:
The No Matching PMI Operating System Present bit is set if the correct PMI operating
system is not present in the UDC module’s operating system and the PMI is requesting an operating
system. This condition will cause the loading of the PMI operating system to fail; however, the UDC
module and the PMI will continue to retry loading the PMI operating system.
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