Rockwell Automation SD3000 Drive Configuration, Programming - Manual (Page 51)

203/1 203 Drive Warning Register (Continued)
Bit: 14
Hex Value: 4000H
Sug. Var. Name: WRN_CLK@
Range: N/A
Access: Read Only
UDC Error Code: N/A
LED: N/A
Description: The CCLK Synchronized in PMI Warning bit is set when the CCLK counters in the PMI
Processor and the UDC module are momentarily not synchronized.
Bit: 15
Hex Value: 8000H
Sug. Var. Name: WRN_COM@
Range: N/A
Access: Read Only
UDC Error Code: N/A
LED: N/A
Description: The PMI Communication Warning bit is set when a fiber-optic communication error is
detected between the PMI Processor module and the UDC module. Communication errors in two
consecutive messages will cause a drive fault.
204/1 204 SCR Diagnostic Register
The Shorted SCR Test is executed by the PMI Processor when CML_RUN@ is first turned on. If the
SCR is not firing correctly, bit 0 of register 203/1203 will be set. The bits set in the SCR Diagnostic
register indicate which SCR is shorted or not firing.
This register is reset when either the Fault Reset bit (bit 8) or the Warning Reset bit (bit 9) of the Drive
Control register (register 100/1 100) is turned on. For a regenerative drive, this register indicates the
pair of SCRs that have a fault. For a non-regenerative drive, this register indicates the specific SCR
that failed.
Bit: 0
Hex Value:
0001 H
Sug. Var. Name: SCR_01@
Range: N/A
Access: Read Only UDC Error Code: N/A
LED: N/A
Description: SCR 1 Fault (Forward Bridge)
Bit: 1
Hex Value: 0002H
Sug. Var. Name: SCR_02@
Range: N/A
Access: Read Only
UDC Error Code: N/A
LED: N/A
Description: SCR 2 Fault (Forward Bridge)
Bit: 2
Hex Value: 0004H
Sug. Var. Name: SCR_03@
Range: N/A Access: Read Only
UDC Error Code: N/A
LED: N/A
Description: SCR 3 Fault (Forward Bridge)
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