Mitsubishi Electric M80V Series Manual page 548

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.4 PLC Output Signals (Data Type: R***)
Cont. Signal name
A PLC axis near-point dog ignored
[Function]
When this signal is used, the "Near point detection" signal (remote I/O connector pin No. fixed signal) which is used for
dog type reference position return can be ignored (dog not-passed state).
Furthermore, the "Near point detection" signal for an axis to which the "PLC axis near-point ignored" signal is set can be
used for other applications.
[Operation]
When the signal is turned ON, the "Near point detection" signal for the corresponding control axis can be ignored.
The interface for this signal is as follows: PLC axis near-point dog is ignored when "Near-point dog ignored" signal is
turned ON.
F E D C B A 9
File register
Cont. Signal name
A Speed monitor mode
[Function]
This signal executes speed monitor function for the control axis for which a valid door No. is selected with the parameter
"#2118 SscDrSel" and the spindle for which a valid door No. is selected with the parameter "#3071 SscDrSelSp".
The door No. corresponds to the following bits.
F E D C B A 9 8 7 6 5 4 3 2 1 0
[Operation]
NC performs as follows by turning ON the "Speed monitor mode" signal.
(1) Checks compatibility of speed monitor parameter
(2) Checks if NC's speed monitor parameter matches with the speed monitor parameter sent to servo drive unit and spin-
dle drive unit.
(3) Notifies speed monitor command to the drive unit
(4) Executes the speed monitor function on NC
(5) Turns ON speed monitor door open possible signal when NC receives the in speed monitor mode signal from the
drive unit
The followings are performed while the speed monitor function is executed.
Item
Monitoring command speed
Monitoring feed back speed
Monitoring feed back position
8 7 6
Bit
Door 1
Door 2
When a command speed NC outputs to the drive unit exceeds a safety speed set with parameter, an
emergency stop occurs.
When a motor rotation speed sent to NC from the drive unit exceeds a safety rotation speed set with
parameter, an emergency stop occurs.
When a difference between feedback position sent to NC from the drive unit and a position commanded
by NC is large, an emergency stop occurs.
535
Abbrev. Common ($)
R279
5 4 3 2 1 0
1st axis
8th axis
Abbrev. Common ($)
SOMD R296
Details
:
:
IB-1501616-D