Mitsubishi Electric Q172DSCPU, Programming Manual

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7 SYNCHRONOUS CONTROL
[Bit device]
Symbol Monitor item Storage details Monitor value Refresh cycle Device No.
St.420
Main shaft clutch ON/OFF
status The ON/OFF status of main shaft
clutch is stored. OFF : Clutch OFF status
ON : Clutch ON status
10n
St.421
Main shaft clutch smoothing
status The smoothing status of main shaft
clutch is stored. OFF : Not on clutch smoothing
ON : On clutch smoothing
10n
St.423
Auxiliary shaft clutch
ON/OFF status The ON/OFF status of the auxiliary
shaft clutch is stored. OFF : Clutch OFF status
ON : Clutch ON status
10n
St.424
Auxiliary shaft clutch
smoothing status The smoothing status of the
auxiliary shaft clutch is stored. OFF : Not on clutch smoothing
ON : On clutch smoothing
Operation
cycle
(During
synchronous
control only)
10n
(1) [St.420] Main shaft clutch ON/OFF status (10n),
[St.423] Auxiliary shaft clutch ON/OFF status (10n)
The clutch ON/OFF status is stored.
(2) [St.421] Main shaft clutch smoothing status (10n),
[St.424] Auxiliary shaft clutch smoothing status (10n)
The smoothing status of the clutch is stored. The status is updated by the clutch
smoothing method as follows.
• Time constant method : The status is always "1:On clutch smoothing" during the
clutch ON status.
The status will be "0: Not on clutch smoothing" when
the clutch is turned OFF and smoothing is completed.
• Slippage method : The status is "1:On clutch smoothing " till the clutch
accumulative slippage amount reaches the slippage at
clutch ON when the clutch is turned ON. The status will
change to "0: Not on clutch smoothing " when the clutch
accumulative slippage amount reaches the slippage at
clutch ON.
The status is "1:On clutch smoothing " till the clutch
accumulative slippage amount reaches 0 when the
clutch is turned OFF. The status will change to "0: Not
on clutch smoothing " when the clutch accumulative
slippage amount reaches 0.