Mitsubishi Electric M800VW Series Programming Manual page 646

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.12 Chopping
Contact Signal name
A CHOPPING ERROR NO.
[Function]
This signal notifies the user PLC the alarm details when an alarm occurs during chopping operation.
[Operation]
Chopping error No. and the details are as shown below.
Error No.
0 No error
1 Number of cycles for chopping is zero.(Operates when the number of cycles is 1)
(Chopping axis feedrate) > (Cutting feed clamp speed)
2
(The feedrate is clamped at the cutting feed clamp speed.)
(Acceleration of chopping axis) > (Cutting feed clamp speed)/(Cutting feed time constant)
3
(The acceleration is clamped at (Cutting feed clamp speed)/(Cutting feed time constant))
(Number of cycles for chopping) > (1056/min)
4
(The number of cycles for chopping is clamped at 1056/min.)
5 Chopping axis zero point return is not completed.
6 Chopping override is zero.
7 Commanded axis is the chopping axis.
8 The bottom dead center point position is zero.
9 The chopping axis is a manual feed axis.
10 Interlock
11 Stored stroke limit or stroke end
20 There is no specification for chopping.
Chopping control data area exceeds the R register area designated for the chopping control data.
Chopping control data area and compensation amount record area are overlapped.
21
Compensation amount record area exceeds R register's backup area (R8300 to R9799). ((Rm+14 x N
sets+4) > 9799)
22 Multiple chopping axes are specified by the PLC interface.
23 Chopping axis is not specified by either PLC interface or parameter.
24 Compensation method is set to other than 0/1.
25 The mode for the compensation value fixed method is set to other than 0(playback mode) or 1 (record mode). C
26 Data No. for the control data is a negative value.
Chopping axis's "#2081 chclsp" (Chopping clamp speed) and "#2002 clamp" (Cutting clamp speed) are both
27
set to "0".
Chopping axis was changed during chopping operation.
28
(Chopping axis cannot be changed during chopping.)
29 Rotary axis was specified as chopping axis.
30 Rapid traverse override valid/invalid is set to other than 0(invalid) or 1(valid).
31 The setting unit for the chopping override is other than 0 (1 %) or 1 (0.01 %).
The error is retained during chopping operation.
Classification
The error is cleared at the rising edge of the chopping parameter valid signal after the chopping control data is correct-
A:
ed, or when the NC is reset.
Classification
The error is cleared after the alarm factor is removed, or when the NC is reset.
B:
Classification The error is cleared at the falling edge of the chopping parameter valid signal, or when the NC is reset.
C: The chopping control data will not become valid while the alarm is occurring.
[Related signals]
(1) Chopping signal (CHPS: YC30)
Signal abbre-
$1 $2
viation
R554 R754
Details
625
$3 $4
R954 R1154
Category
-
A
A
A
A
B
B
B
B
B
B
B
-
C
C
C
C
C
C
C
C
A
A
IB-1501668-B