Mitsubishi A1SD75M3 User Manual page 504

12 CONTROL AUXILIARY FUNCTIONS
Control type
Machine zero point return control
Zero point
return control High-speed zero pint return control
Position
control
Main
positioning
control
Speed control
Speed/position changeover control
Other
control
JOG operation
Manual
control
Manual pulse generator operation
: Check valid
: Check only carried out at start. (If "current feed value" is set in the " Pr.15 Software stroke limit selection", the
check will not be carried out when the Pr.22 Current feed value is updated.)
– : Check not carried out (check invalid).
: Valid only when "valid" is set in the " Pr.16 Software stroke limit valid/invalid setting".
3
* : The value in " Md.29 Current feed value" will differ according to the " Pr.22 Current feed value during speed
control" setting.
4
* : When the unit is "degree", check is not carried out during speed control.
5
* : When the unit is "degree", check is not carried out.
(2) Software stroke limit check details
An error shall occur if the current value*
stroke limit range*
1)
(Check " Md.29 Current feed value" or " Md.30 Machine feed
value".)
An error shall occur if the command address is outside the
software stroke limit range.
2)
(Check " Da.5 Positioning address/movement amount".)
1
Check whether the " Md.29 Current feed value" or " Md.30 Machine feed value" is set in
*
" Pr.15 Software stroke limit selection".
2
* Moveable range from the " Pr.13 Software stroke limit upper limit value" to the " Pr.14
Software stroke limit lower limit value".
(3) Relation between the software stroke limit function and various
controls
1-axis linear control
2-axis linear interpolation
control
1-axis fixed-dimension feed
control
2-axis fixed-dimension feed
control (interpolation)
2-axis circular interpolation
control
Current value change
JUMP command
Check details
1
is outside the software
2
.
Limit
check
–
Check not carried out.
–
Checks 1) and 2) in the previous section (2) are carried
out.
For speed control: The axis decelerates to a stop when
For position control: The axis comes to an immediate
3, 4
*
3, 4
*
When the current value is changed, an error will not occur
even if the new address is outside the software stroke
– limit range. However, an error "start outside stroke limit
+/-" (error code: 507/508) will occur at the next operation
start.
– Check not carried out.
5
Check 1) in the previous section (2) is carried out.
*
The machine will carry out a deceleration stop when the
software stroke limit range is exceeded. If the address is
outside the software stroke limit range, the operation can
5
*
only be started toward the moveable range after the error
is reset.
12 - 32
MELSEC-A
Processing when
an error occurs
An "axis error" will
occur, and the
operation will not start.
Processing at check
it exceeds the software stroke limit
range.
stop when it exceeds the software
stroke limit range.