Rockwell Automation WebPak 3000 DC Drive Application Workbook Version 1.1 - Manual (Page 61)

Configuring the Current Major Outer Control Loop 10-5
10.6 Validating the Settings of TEN PI PROP GAIN (P.841)
and TEN PI LEAD FREQ (P.840)
This section describes how to verify the dynamic performance of the drive with web in
the machine.
Important: The parameters listed in the procedure below are adjusted specifically for
this procedure and then are reset to their previous values. Use the blanks
to record the values of the parameters before the validation procedure is
performed.
þ
To validate the settings of the PI proportional gain (P.841) and PI lead
frequency (P.840):
▲
Set the gain profiler TEN PROFILER ENABLE (P.878) to DISABLE .
▲
Set OCL TYPE (P.818) to CASCADE .
▲
Set OCL SELECT (P.817) to CURRENT .
▲
Verify that TEN LEADLAG SELECT (P.837) is set to BYPASS .
▲
Set TEN RAMP TIME (P.833) to the minimum value (0.1 seconds).
▲
Set the speed reference at 20% of maximum.
▲
With the load connected to the motor (core, if variable diameter), start the
drive with the section run input. The
TENSION ON digital input (terminal 63 on
the I/O Expansion board) must be de-asserted. This will run the drive as a
speed regulator.
▲
Set TENSION SETPOINT SEL (P.855) to REGISTER and set the register value at
200 (approximately 5% of maximum).
Range: ENABLE , DISABLE P.878 =
Range: CASCADE , PARALLEL P.818 =
!
ATTENTION: The user must read and understand the drive sequencing
description and state diagram (figure 3.3 in the WebPak 3000 software
manual, D2-3444) before using the
TENSION ON input. Setting OCL SELECT
(P.817) to any option but NONE permits the TENSION ON input to start the
drive. Once the TENSION ON input is permitted to start the drive, negating
the TENSION ON input while in any state other than the stall tension state
will not stop the drive. Failure to observe this precaution could result in
severe bodily injury or loss of life.
Range: NONE , TENSION , CURRENT , POSITION P.817 =
Range: LEAD / LAG , BYPASS , LAG / LEAD P.837 =
Range: 0.1 to 60.0 SECONDS P.833 =
Range: REGISTER , ANALOG P.855 =