text: <s>[INST] PowerFlex 700H will not acclerate Summary: This drive will not increase the output frequency with a load attachedHere I am with yet another 700H question. We have a PowerFlex 700H, frame size 10, driving a 250hp centrifugal horizontal pump in a Waste Water facility. After the last power up, when called for, the drive will not increase the frequency output with the load attached. If we attempt to run the pump, the display on the HIM indicates accelerating but no increase in the output frequency and no output current. Occasionally you see a flicker of each but not long enough to register much of a value. But, if we disconnect the motor, send a start, the drive will ramp up the correct output frequency with no output current (because there is no load attached). 1)The motor turns freely, 2)The motor is not shorted to ground, 3)The motor does not have an open winding, 4)This happens with control over Ethernet/IP or control locally at the HIM. We have triple checked the drive parameters with an identical drive running next to this one. None have changed. We do NOT get any faults or alarms. I am looking for any input as to what to try or check next. Jason Wirtz Controls Technician Sioux Falls Water Reclamation 4500 N Sycamore Ave Sioux Falls, SD 57104 605-906-1324 jwirtz@siouxfalls.org [/INST] It sounds like your current limit is set to around zero. Please verify parameters 147, 148, and 149. If you can upload a DNO file, we can give you a separate set of eyes on the problem. \\n </s>