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MELSEC-Q
11   MANUAL CONTROL 
 
 Restricted items 
 
A manual pulse generator is required to carry out manual pulse generator 
operation.  
 
 Precautions during operation 
 
 
(1)  The speed during manual pulse generator operation is not limited by the 
"
Pr.8
 Speed limit value". 
(2)  If the "
Cd.21
 Manual pulse generator enable flag" is turned ON while the 
QD75 is BUSY (BUSY signal ON), a warning "Start during operation" (warning 
code: 100) will occur. 
(3)  If a stop factor occurs during manual pulse generator operation, the operation 
will stop, and the BUSY signal will turn OFF.  
At this time, the "
Cd.21
 Manual pulse generator enable flag" will be left ON, 
but manual pulse generator operation will not be possible. To carry out manual 
pulse generator operation again, measures must be carried out to eliminate 
the stop factor. Once eliminated, the operation can be carried out again by 
turning the "
Cd.21
 Manual pulse generator enable flag" ON   OFF   ON.  
(Note that this excludes when hardware/software stroke limit errors occurs.) 
(4)  Pulses will not be output if an error occurs when the manual pulse generator 
operation starts.  
 
REMARK 
•
 One QD75 module can be connected to one manual pulse generator.  
•
 The QD75 module can simultaneously output pulses to the axis 1 to axis 4 drive 
units by one manual pulse generator.  
(1- to 4-axis simultaneous operation is possible.)