Rockwell Automation SD3000 Drive Configuration, Programming - Manual (Page 37)

100/1 100 Drive Control Register (Continued)
Bit: 15
Hex Value: 8000H
Sug. Var. Name: UDC_RUN@
Range: N/A
Access: Read Only
UDC Error Code: N/A
LED: N/A
Description: The UDC Task Running bit is a status bit that indicates that the UDC task is running.
This bit is used by the PMI Processor to prevent the minor loop from running if the UDC task is not
running. This bit must NOT be written to by the user. This is a status bit that is written to by the
operating system.
101 /1 101 I/O Control Reglster
This register contains the bits that control resolver strobe operation and the operation of the
M-contactor.
Bit: 1
Hex Value: 0002H
Sug. Var. Name: MCR@
Range: N/A
Access: Read/Write
UDC Error Code: N/A
LED: N/A
Description: The M_Contactor Output bit is set to close the M-contactor. This bit is level-sensitive.
Depending on whether the M-contactor is switching A-C or D-C power (specified when configuring
the drive parameters), this bit is controlled by the PMI Processor or the application program. In either
case, the run permissive input on the Resolver & Drive l/O module must be on to turn on MCR.
If an A-C contactor has been specified during parameter entry, this bit is not controlled by the PMI
Processor and MUST be set or reset by the programmer.
If a D-C contactor is used to control power to the motor from the Power Module, the contactor is con-
trolled by the PMI Processor. In this case, setting and clearing the MCR@ bit in application tasks has
no effect on the M-contactor output. This bit is not a status bit and does not reflect the actual status
of the M-contactor. The application program can use the M-contactor feedback bit (register
201 /1 201, bit 1) to determine the status of the M-contactor.
If you use both an A-C and D-C M-contactor, this bit is controlled by the programmer, and the D-C
contactor must be controlled by auxiliary inputs and outputs on the Resolver & Drive l/O module. See
register 101/1 101, bit 4 and register 200/1 200 for the auxiliary output and input bits.
Bit: 2
Hex Value: 0004H
Sug. Var. Name: EXT_LED@
Range: N/A
Access: Read/Write
UDC Error Code: N/A
LED: EXT FLT LED on the PMI Processor module
Description: The External Fault LED bit is set by the application task to turn on the EXT FLT LED on
the PMI Processor module.
Bit: 4
Hex Value:
001 OH
Sug. Var. Name: AUX_OUT@
Range: N/A
Access: Read/Write
UDC Error Code: N/A
LED: AUX OUT LED on the Resolver & Drive I/O module
Description: The auxiliary output bit is set to turn on the auxiliary output on the Resolver & Drive l/O
module.