Mitsubishi Electric M80V Series Manual page 510

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
Cont. Signal name
A Spindle forward run index
[Function]
This signal is used for the spindle forward run index in multi-point indexing.
[Operation]
<Multi-point indexing>
 This signal turns ON after the "Spindle in-position" signal (ORAO) is output.
 Indexing can be carried out continuously by turning this signal ON and OFF while the "Spindle orientation command"
signal (ORC) is ON.
 When the "Spindle orientation command" signal (ORC) is turned ON and this signal is turned ON before the "Spindle in-
position" signal (ORAO) is output, first, the "Spindle orientation command" signal (ORC) turns ON, and the orientation is
completed with the read "Multi-point orientation position data" (R7009). Then, the spindle is indexed to the read position
command value when this signal is ON.
If the position command value is the same when the "Spindle orientation command" (ORC) is ON and when this signal
is ON, the indexing operation is not carried out.
 The index position command value is read at the rising edge of this signal. Therefore, the stop position does not change
even if the index position command value is changed after this signal is input.
 Even if this signal is turned OFF while the "Spindle orientation command" (ORC) is ON, the spindle will continue to stop
at the position before this signal was turned OFF. Even if this signal is turned OFF during the indexing operation, the
spindle stops at the position command value read at the rising edge of this signal.
 If the stop point and indexing position command value are close to each other(within the in-position range), the indexing
operation may be carried out without turning OFF the "Spindle in-position" signal (ORAO).
 If the "Spindle orientation command" signal (ORC) is turned OFF during indexing operation or stop, the servo lock turns
OFF and the motor coasts. Orientation must be carried out again the next time the indexing operation is performed.
Multi-point orientation
position data (index) (R7009)
Spindle orientation command
(ORC)
Spindle in-position (ORAO)
Spindle forward run index
(WRN)
Spindle speed waveform
T : 100ms or more
Abbrev. 1stSP 2ndSP
WRN Y189C Y18FC
t
t
Orienting operation Indexing operation
Orientation stop
497
3rdSP 4thSP 5thSP
Y195C Y19BC Y1A1C
Index stop
Index stop
Indexing operation
6thSP 7thSP 8thSP
Y1A7C Y1ADC Y1B3C
IB-1501616-D