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Programming Your Application
1-63
690+ Series Frequency Inverter
PHASE AUTO GEAR
Designed for use with the System Board.
This function block calculates the gear ratio
between the master and slave shafts from the
relative repeat lengths calculated from the
marker inputs.
The relative repeat lengths are then used to
calculate the relative velocities of the master
and slave in order to synchronise them;
without this, register control is not possible.
Included in this block is logic for
discriminating against missing and false
(premature) marks (Windowing).
The results of the gearing calculation are
filtered and then applied using the Gearing
in the Phase Control Block.
This function block must be enabled in order
to use the PHASE REGISTER function
block.
MISSED M MARKS
Range: 0 -
Diagnostic counter for missing (late) marks. Missing marks are those that occur after the
window.
Phase Auto Gear
–
SLAVE LENGTH
[1599]
–
0.0000
–
MASTER LENGTH
[1598]
–
0.0000
–
GEAR CORRECTION
[1597]
–
0.0000
–
EXT MARK SLAVE
[1596]
–
FALSE
–
EXT MARK MASTER
[1595]
–
FALSE
–
FALSE M MARKS
[1594]
–
0
–
FALSE S MARKS
[1593]
–
0
–
MISSED M MARKS
[1592]
–
0
–
MISSED S MARKS
[1591]
–
0
–
MASTER MARKS
[1590]
–
0
–
SLAVE MARKS
[1589]
–
0
–
READY [1602]
–
FALSE
–
SLAVE MARK POS
[1832]
–
0
–
MASTER MARK POS
[1833]
–
0
TRUE
–
[1579] RESET
–
FALSE
–
[1580] ENABLE
–
FALSE
–
[1581] HOLD
–
1.0000
–
[1582] NOM MASTER LEN
–
1.0000
–
[1583] NOM SLAVE LENGTH
–
0.1000
–
[1584] TOLERANCE
–
20
–
[1585] INITIAL REPEATS
–
0.100
–
[1586] INITIAL FILTER
–
1.000
–
[1587] FILTER
–
FALSE
–
[1588] RESET COUNTERS
–
MMI Menu Map
1
SETUP
2
SYSTEM BOARD
3
PHASE AUTO GEAR
RESET
ENABLE
HOLD
NOM MASTER LEN
NOM SLAVE LENGTH
TOLERANCE
INITIAL
REPEATS
INITIAL
FILTER
FILTER
RESET
COUNTERS
SLAVE
MARKS
MASTER
MARKS
MISSED S MARKS
MISSED M MARKS
FALSE S MARKS
FALSE M MARKS
EXT MARK MASTER
EXT MARK SLAVE
GEAR
CORRECTION
MASTER
LENGTH
SLAVE
LENGTH
READY
SLAVE MARK POS
MASTER MARK POS
Parameter Descriptions
SLAVE LENGTH
Range: —.0000
Connect to GEARING A in the PHASE CONTROL function block. See MASTER LENGTH
below.
MASTER LENGTH
Range: —.0000
Connect to GEARING B in the PHASE CONTROL function block.
Length is calculated by measuring the distance between good marks and filtering the result.
Two filter time constants are available: the first is to allow minimal filtering during the start-
up phase, and the second is typically higher to allow the smooth tracking of any changes to
web length. The length outputs are persistent as long as no RESET is applied. The last
calculated value is saved on power-down.
GEAR CORRECTION
Range: —.0000
A gear correction factor diagnostic, calculated by dividing SLAVE LENGTH by MASTER
LENGTH.
EXT MARK SLAVE
Range: FALSE / TRUE
Diagnostic, displays the state of the Slave Mark input.
EXT MARK MASTER
Range: FALSE / TRUE
Diagnostic, displays the state of the Master Mark input.
FALSE M MARKS
Range: 0 -
Diagnostic counter for false (early) marks. False marks are those that occur before the
window is open.
FALSE S MARKS
Range: 0 -
Diagnostic counter for false (early) marks. False marks are those that occur before the
window is open.