Allen-Bradley PowerFlex 750 Series Programming Manual

154 Rockwell Automation Publication 750-PM001N-EN-P - February 2017
Chapter 3 Drive Port 0 Parameters
DIAGNOSTICS
Status
935 Drive Status 1
Drive Status 1
RO 32-bit
Integer
Present operating condition of the drive.
Bit 0 “Ready” – Condition is true if there are no start inhibits indicated by P933 [Start Inhibits]. When parameter 150 [Digital In Cfg] option 1 “Run Level” is selected
and the run command is low, this bit will also be low.
Bit 1 “Active” – Condition is true if drive is modulating.
Bit 2 “Command Dir” – 1 = Commanded direction is forward. 0 = Commanded direction is reverse.
Bit 3 “Actual Dir” – 1 = Actual direction is forward. 0 = Actual direction is reverse.
Bit 4 “Accelerating” – For flux vector and non-vector control modes, this bit indicates when the actual motor speed is increasing due to change in speed reference.
When accelerating, the motor speed is moving away from zero in either the positive (forward) or negative (reverse) direction. In adjustable voltage control mode,
accelerating relates to an increasing output voltage and frequency. The “accelerating” bit will become clear when any of the following conditions occur:
• drive inactive (Bit 1 “Active” status clear)
• when “At Speed” (Bit 8 status set)
• when “AtZero Speed” (Bit 24 set)
• when “DC Braking” (Bit 19 set)
• when the drive is operating as a torque regulator (Bit 23 without Bits 21 and 22)
• when the drive is is operating in position mode (Bit 22)
Bit 5 “Decelerating” – This bit compliments the Accelerating status Bit 4 for the condition where the motor speed is decreasing due to a change in speed reference.
When decelerating, the motor speed is moving toward zero in either the positive (forward) or negative (reverse) direction. In adjustable voltage control mode,
decelerating relates to a decreasing output voltage and frequency. The conditions that will clear this bit are the same as those that apply to the Accelerating status
bit.
Bit 8 “At Speed” – This bit will become set when the actual motor speed has reached the speed reference value. This condition is determined by comparing P131
[Active Vel Fdbk] against P597 [Final Speed Ref]. “At Speed” occurs when the difference between speed reference and feedback is within 1 percent of motor
nameplate speed. In adjustable voltage control mode, the “At Speed” condition will indicate when the output voltage and frequency have completed their ramps
and are no longer changing. The “At Speed” bit will become clear when any of the following conditions occur: drive inactive (Bit 1 “Active” status clear) or when
accelerating (Bit 4 set) or when decelerating (Bit 5 set).
File Group
No. Display Name
Full Name
Description
Values
Read-Write Data Type
Options
Regen Motor OL Enable On Bus Frq Reg Cur Limit At Limit At Home AtZero Speed Torque Mode PositionMode Speed Mode DB Active DC Braking Stopping Jogging Running Reserved SpdRef Bit 4 SpdRef Bit 3 SpdRef Bit 2 SpdRef Bit 1 SpdRef Bit 0 Manual At Speed Faulted Alarm Decelerating Accelerating Actual Dir Command Dir Active Ready
Default00000000000000000000000000000000
Bit 313029282726252423222120191817161514131211109 8 7 6 5 4 3 2 1 0
0 = Condition False
1 = Condition True

Allen-Bradley PowerFlex 750 Series Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 750 Series
Category	Controller
Language	English