Mitsubishi Electric MELSEC iQ-R Series Migration Manual page 48

2. DETAILS OF MIGRATION FROM Q17nCPUN(-T) TO RnMTCPU
(8) Acceleration/deceleration time settings
The setting range of the acceleration/deceleration time is expanded from 1 word to 2 words
in RnMTCPU. This change requires some program revisions.
Refer to the following conditions for the revisions.
[Items which need a program revision]
Motion control parameter
(Parameter block)
Servo program
[Program change procedure]
No.
1
2
3
Function
Acceleration time
Deceleration time
Rapid stop deceleration time
Acceleration time
Deceleration time
Rapid stop deceleration time
Fixed position stop acceleration/
deceleration time
Condition
Direct setting of the acceleration/
deceleration time
Indirect setting of the The start device
acceleration number is an
/deceleration time even number
The start device
number is an
odd number
Item
• No need to revise the program
• Check whether the next device of the start
device is usable or not. If it is unusable,
secure two words of devices for the
acceleration/deceleration time settings.
• Note that no error occurs at program
conversion.
• An odd number cannot be set as the start
device number. Secure two words of devices
starting from even number.
• If the device is an odd number, an error
occurs at program conversion.
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Revision procedure