I have ACS 550 drive. I am operating the drive in LOCAL mode only . The speed of the motor is increased through the Keypad present on the display unit. Full speed is 2900 rpm which is set in 99 parameter. After increasing the speed, i return to the main display. There it displays in %, Hz & Amps. For ex ; if it displays 5 % what does it mean? Does it mean it is 5% of 2900rpm. If so 5% of 2900 = 145 rpm. But the tachometer measures only 100pm. What does that 5% or X %mean?