Rockwell Automation SD3000 Drive Configuration, Programming User Manual
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I/O Control Register (Continued)
Bit: 6
Hex Value: 0040H
Sug. Var. Name:
RES_CAL@
Range:
N/A
Access:
Read/Write
UDC Error Code:
N/A
LED:
N/A
Description:
The Enable Resolver Calibration bit is set to start the test that determines the resolver’s
balance value. This value will be stored in the pre-defined local tunable RES_BAL%.
This bit is
edge-sensitive. The test will turn off if the bit is turned off. Note that this calibration test should only be
executed at one-half base speed. Refer to register 201/1 201, bit 7 for more information on the
calibration test complete bit. Refer to the Distributed Power D-C Drives Power Module Interface Rack
instruction manual (S-3008) for additional resolver calibration information.
Bit: 8
Hex Value:
01 OOH
Sug. Var. Name:
STR_ENA@
Range:
N/A
Access:
Read/Write
UDC Error Code:
N/A
LED:
N/A
Description:
The Enable External Strobe bit is set to enable the external strobe on the resolver to
capture the position of the resolver when the rising edge of the external strobe is detected. As long
as this bit is set, the external strobe is enabled. If this bit is set in conjunction with bit 9, the resolver
position is captured on both the rising and falling edges of the input signal. See register 201/1 201,
bits 8 and 9, for additional information. The resolver position data is placed in the Resolver Strobe
Position register (register 216/1 216).
Bit: 9
Hex Value: 0200H
Sug. Var. Name:
STR_ENF@
Range:
N/A
Access:
Read/Write
UDC Error Code:
N/A
LED:
N/A
Description:
The Enable External Strobe Falling Edge bit is set to enable the external strobe on the
resolver to capture the position of the resolver when the falling edge of the external strobe is
detected. As long as this bit is set, the external strobe is enabled. If this bit is set in conjunction with
bit 8, the resolver position is captured on both the rising and falling edges of the input signal. See
register 201 /1 201, bits 8 and 9, for additional information. The resolver position data is placed in the
Resolver Strobe Position register (register 216/1 216).
Bit:
10
Hex Value: 0400H
Sug. Var. Name:
NO_TBW@
Range:
N/A
Access:
Read/Write
UDC Error Code:
N/A
LED:
N/A
Description:
The Disable Broken Wire Detection bit is set to disable the resolver broken wire test.
When the test is disabled, a broken resolver wire will not shut the drive down. This bit can only be
used if “No Speed Feedback” is selected on the UDC Configuration Parameter Speed Feedback
data screen. If a resolver is selected for speed feedback, this bit is ignored and the broken wire test
is enabled.
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