CALIBRATE TENSION THROUGH FIELDBUS
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DLCA NET-ECAT
MI 850A365 1
Page 60 of 72
Precision calibration procedure continued
When performing a calibration, both the zero and precision
calibrate steps must be done in sequence before a calibration
is valid.
If only zeroing the tension is required, use the 0x1E or 0x1F
command.
1.
Unload the load cell(s) for Tension Zone 1.
2.
Enter the command 0x01 (Zero Calibrate Zone 1) in the
Command Request
register. The DLCA NET-ECAT
immediately responds with 0x8000 0001 (Busy) in the
Command Response
.
If the calibrate zero is successful, the DLCA NET-ECAT will
respond with 0x1000 0001 after ten to twenty seconds.
Otherwise, an error message will be returned 0x20XX 0001.
3.
Clear the
Command Request
register by entering the
command 0x00.
4.
Hang the known weight and rope over the load cell(s) in
Tension Zone 1. See Figure 12.
5.
Enter the command 0x02 (Precision Calibrate Zone 1) in the
Command Request
. The DLCA NET-ECAT immediately
responds with 0x8000 0002 (Busy) in the
Command
Response
.
If the calibrate precision is successful, the DLCA NET-ECAT
will respond with 0x1000 0002 after 10 to 20 seconds.
Otherwise an error message will be returned 0x20XX 0002.
6.
Clear the
command request
register by entering the
command 0x00.
Clearing the command request is necessary to prevent
starting multiple calibrations, such as zero and precision,
before the first entered request is finished.
Precision Calibration is now complete.
1 - Temporary web
2 - Sensing roll
3 - Weight (W)
Figure 12. Apply calibration tension
