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Mitsubishi Electric MELSEC Q Series User Manual page 221

Positioning module
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(c) New speed and "
When the value set in "
at "
Speed limit value".
Pr.5
(d) Successive speed changes
To change speed successively, set an interval of 10ms or more between each speed change. If there are not
enough intervals between speed changes, the QD73A1 may not be able to follow the requests and process the
commands normally.
(e) When "0" is set in "
When "0" is set in "
signal (X14) stays on. (Inputting Stop signal turns off BUSY signal (X14).)
To activate the axis again, set a value other than "0" in "
change.
Positioning operation
Positioning start signal
(Y21 to Y23)
BUSY signal
(X14)
Cd.2 New speed value
Cd.8 Speed change request
(3) Data setting and the execution condition of the function
The following table lists the data to be set and the condition to execute the speed change function.
Setting item
Setting range
0 to "
New speed
value" (pulse/s)
Cd.2
value
(Maximum 4000000
pulse/s)
Speed
change
1: Change speed
Cd.8
request
Speed limit value"
Pr.5
New speed value" exceeds "
Cd.2
New speed value"
Cd.2
New speed value" and a speed change is requested, the axis stops. Though, BUSY
Cd.2
v
ON
OFF
ON
OFF
0
ON
OFF
Executed by the QD73A1
Default value
Speed limit
Pr.5
0pulse/s
0
CHAPTER 11 CONTROL SUB FUNCTIONS
Speed limit value", the positioning is operated
Pr.5
New speed value" and request the speed
Cd.2
1000
Execution condition of the speed
change function
BUSY signal (X14) must be on. Note that
speed cannot be changed at the following.
• After the start of automatic deceleration
• After the input of Stop signal (Y27) or Stop
signal (STOP)
• After a JOG start signal (Y24, Y25) was
turned off during JOG operation
• During OPR
11
t
Buffer
memory
address
(decimal)
82
83
91
219

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