Mitsubishi Electric MELSEC-L LD75D, User Manual

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(2) Positioning control
*1 When multiple positioning data is executed by the continuous positioning control and there is invalid setting value in a
positioning data, an error occurs and deceleration is performed at the previous positioning data. In this case, sudden
stop is not performed even when it is set for the stop group 3. If any of the following error occurs, the operation is
immediately stopped after executing up to previous positioning data of the positioning data where an error occurred.
• No command speed (error code: 503)
• Outside linear movement amount range (error code: 504)
• Large arc error deviation (error code: 506)
• Software stroke limit + (error code: 507)
• Software stroke limit - (error code: 508)
• Sub point setting error (error code: 525)
• End point setting error (error code: 526)
• Center point setting error (error code: 527)
• Outside radius range (error code: 544)
• Illegal setting of ABS direction in unit of degree (error code: 546)
*2 This means the stop using a stop button on the positioning test dialog box when using the positioning test function of GX
Works2.
Stop cause Stop axis
M code ON
signal after stop
Axis operation
status ([Md.26])
after stopping
Stop process
Major positioning
control
High-level positioning
control
Forced stop
Drive unit READY signal
OFF
Each axis No change Error Immediate stop
Fatal stop
(Stop group 1)
Hardware stroke limit
upper/lower limit error
occurrence
Each axis No change Error
Deceleration stop/sudden stop
(Select with "[Pr.37] Stop group 1 sudden stop
selection".)
Emergency stop
(Stop group 2)
CPU module error
occurrence
All axes
No change
Error
Deceleration stop/sudden stop
(Select with "[Pr.38] Stop group 2 sudden stop
selection".)
PLC READY signal OFF Turns OFF
Error in test function No change
Relatively safe stop
(Stop group 3)
Axis error detection
(Error other than stop
group 1 or 2)
*1
Each axis No change Error
Deceleration stop/sudden stop
(Select with "[Pr.39] Stop group 3 sudden stop
selection".)
Intentional stop
(Stop group 3)
"Stop signal" ON from
external source
Each axis No change
Stopped
(Standby)
"Axis stop signal" ON
from CPU module
"Stop signal" from GX
Works2
*2