YASKAWA Varispeed V7 Instruction Manual page 116

* 2. Always set the Number of Motor Poles (2 to 39) in Inverter constant n035
when using the Speed Ref, Speed Actual, Low Spd Limit, or High Spd
Limit settings.
* 3. The Drive Mode, Low Spd Limit, and High Spd Limit settings cannot be
changed while the Inverter is running.
* 4. These settings cannot be changed while the Inverter is running.
6. Operating with DeviceNet Communications
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