I have a PowerFlex 40 with a 0-10VDC analog in for the main speed reference. I also have a 4-20 mA signal set up for
Setpnt Trm (A312=5)and parameters A112 and A113 (100 and 0% resp.) reversed so that an increasing signal will increase the trim.
Everything works except for when the 4-20Ma signal gets above
19.97 mA at which monitor variable for the 4-20mA (D021) equals or exceeds 100% signal, the drive will drop to a speed less than the main speed reference. This is not working too well since the control has to run full speed in this condition. There are not too many loop signals that do not exceed 20mA to some degree. Is there a parameter I'm missing to have the drive continue at full speed at mA >= 100%?
I have the PID basically turned off. A134 = .3, A135 = 0 and A136 = 0. PID Setpoint around 53% and trim at +- 5HZ.
Thanks
Setpnt Trm (A312=5)and parameters A112 and A113 (100 and 0% resp.) reversed so that an increasing signal will increase the trim.
Everything works except for when the 4-20Ma signal gets above
19.97 mA at which monitor variable for the 4-20mA (D021) equals or exceeds 100% signal, the drive will drop to a speed less than the main speed reference. This is not working too well since the control has to run full speed in this condition. There are not too many loop signals that do not exceed 20mA to some degree. Is there a parameter I'm missing to have the drive continue at full speed at mA >= 100%?
I have the PID basically turned off. A134 = .3, A135 = 0 and A136 = 0. PID Setpoint around 53% and trim at +- 5HZ.
Thanks