6
6-13
6-4 Electronic Gear Function
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Applied Functions
Precautions for Correct Use
Set the parameters so that the command pulse frequency multiplied by the electronic gear ratio
does not exceed 175 Mpps*. If 175 Mpps* is exceeded, alarm 27.2 will occur.
Example:
The following calculation is for an incremental encoder with a resolution of 1,048,576, an
electronic gear setting of 500 (Pn008 = 500), and a command pulse frequency of 100 kpps.
100 Kpps × 1,048,576/500 = 209,715,200 = 209.7152 Mpps, which exceeds 175 Mpps*.
The calculation changes as follows if the electronic gear is set to 5,000 (Pn008 = 5,000) and the
command pulse frequency is 100 kpps.
100 Kpps × 1,048,576/5,000 = 20,971,520 =20.97152 Mpps, which does not exceed
175 Mpps*.
* Alarm 27.2 will occur if 3 Gpps is exceeded when using software version 1.10 or higher.
The software version can be checked on the front panel or with the CX-Drive.
For information on checking the software version on the front panel, refer to 9-4 Setting the
Mode.
To Next Page
Loading...
Need help?
General
