590 DRV Digital DC Drive Product Manual
App. M - 2
Appendix M Special Blocks and Application Notes
M
DIAMETER CALC.
DIAMETER CALC. is used to calculate roll diameters in winder applications. It cal-
culates diameter by dividing the LINE SPEED by REEL SPEED. The resulting diam-
eter is a percentage of the maximum full roll diameter. A lead section, adjacent line
section, or surface driven speed sensing device is required to supply the line speed sig-
nal. The winder or unwind drive's motor speed feedback provides the reel speed input.
NOTE. This block is ignored by the drive unless SYSTEM::
CONFIGURE I/O:: BLOCK DIAGRAM::DIAMETER is connected to
a non-zero tag.
The ratio of the minimum core diameter to the maximum roll diameter determines the
operating range of the diameter calculator. MIN DIAMETER is set to that ratio using
the expression:
Minimum Core Outside Diameter ÷ Maximum Full Roll Diameter × 100%
The magnitude of LINE SPEED is compared with MIN SPEED to determine when the
diameter calculator will operate. When LINE SPEED is above MIN SPEED the calcu-
lator is on; below MIN SPEED, DIAMETER is held at the last calculated diameter.
When EXTERNAL RESET is TRUE, RESET VALUE is used as the diameter output.
NOTE. In turret winder applications, LINE SPEED will usually be
above MIN SPEED. During roll changes, EXTERNAL RESET must be
held TRUE for the new spindle until the web has been transferred and
the diameter is calculated properly. RESET VALUE must be set to the
appropriate new core value for a rewind or new roll diameter for an
unwind.
RAMP RATE adjusts the filtering of the diameter output. Its setting is the time it takes
for a 100 percent change in DIAMETER. For example, at the default setting of 5.0
seconds, a 50 percent step change in diameter would take 2.5 seconds for the output
diameter output to display the change.
Tag Parameter
Description
DIGITAL DC DRIVE
MENU LEVEL
MENU LEVEL
DIAGNOSTICS
MENU LEVEL
SETUP PARAMETERS
SETUP PARAMETERS
SPECIAL BLOCKS
RAMPS
DIAMETER CALC.
SETUP PARAMETERS
AUX I/O
SETUP PARAMETERS
SETUP PARAMETERS
SETUP PARAMETERS
JOG/SLACK
RAISE/LOWER
SPECIAL BLOCKS
M
M
M
Range
Default
424 Line Speed
The line speed input from analog input 3.
±105.00%
0.00%
437 Reel Speed
The winder speed from the Speed Feedback signal.
±105.00%
0.00%
425 Min Diameter
Set to the minimum core diameter as a percentage of the
0.00 - 100.00%
10.00%
maximum roll diameter. Used in the diameter calculation
and as a clamp for the diameter output.
426 Min Speed
The threshold for line speed below which the block
0.00 - 100.00%
5.00%
stops calculating new diameters.
462 Reset Value
This is the diameter preset used when changing rolls. It is
0.00 - 100.00%
10.00%
the value of the diameter loaded when External Reset is Enabled.
463 External Reset
Sets the diameter to Reset Value when Enabled.
Enabled/Disabled
Disabled
453 Ramp Rate
Linear filter used to smooth the diameter output.
0.1 - 600.0 Secs
5.0 Secs
427 Diameter
Output of the Diameter Calc. function block.
0.00 - 100.00%
Содержание 590 DRV Digital
Страница 2: ......
Страница 16: ...1 4 Chapter 1 Introduction 1 590 DRV Digital DC Drive Product Manual ...
Страница 22: ...2 6 2 Chapter 2 Identification 590 DRV Digital DC Drive Product Manual ...
Страница 45: ...Figure 3 20 Wiring Circuit Diagram for 590 DRV Digital Drive ...
Страница 77: ...5 22 5 590 DRV Digital DC Drive Product Manual Chapter 5 Troubleshooting ...
Страница 103: ...App A 18 A Appendix A Technical Description 590 DRV Digital DC Drive Product Manual ...
Страница 107: ...B Appendix B Using the Man Machine Interface App B 4 590 DRV Digital DC Drive Product Manual ...
Страница 114: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 7 C Figure C 8 Aux I O ...
Страница 120: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 13 C t Figure C 13 Field Control ...
Страница 122: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 15 C Figure C 14 Field Current Variables ...
Страница 124: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 17 C Figure C 15 Field Weakening Variables ...
Страница 126: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 19 C Figure C 16 Current Profile ...
Страница 128: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 21 C t t t Figure C 17 Stop Rates ...
Страница 134: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 27 C Figure C 22 Setpoint Sum ...
Страница 138: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 31 C Figure C 25 Speed Loop ...
Страница 142: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 35 C Figure C 27 Speed Loop Setpoints ...
Страница 144: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 37 C Figure C 28 Current Loop ...
Страница 146: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 39 C Figure C 29 Inhibit Alarms ...
Страница 148: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 41 C Figure C 30 Calibration t ...
Страница 149: ...Appendix C Setup Parameters 590 DRV Digital DC Drive Product Manual App C 42 C ...
Страница 169: ...Appendix D I O Configuration System Menu App D 20 D 590 DRV Digital DC Drive Product Manual Figure D 17 Block Diagram ...
Страница 173: ...Appendix D I O Configuration System Menu App D 24 D 590 DRV Digital DC Drive Product Manual ...
Страница 174: ...Figure D 20 590 DRV Digital DC Drive Software Block Diagram t t t t ...
Страница 202: ...App F 18 Appendix F Spare Parts List 590 DRV Digital DC Drive Product Manual F ...
Страница 208: ...Appendix G RS232 System Port P3 590 DRV Digital DC Drive Product Manual App G 6 G ...
Страница 234: ...Appendix H RS422 Communications Ports P1 P2 590 DRV Digital DC Drive Product Manual App H 26 H ...
Страница 250: ...Appendix J Parameter List by Menu App J 8 J 590 DRV Digital DC Drive Product Manual ...
Страница 258: ...Appendix K Parameter List by Parameter Name 590 DRV Digtial DC Drive Product Manual App K 8 K ...
Страница 318: ...590 DRV Digital DC Drive Product Manual App M 38 Appendix M Special Blocks and Application Notes M ...