Rockwell Automation WebPak 3000 DC Drive Application Workbook Version 1.1 - Manual (Page 20)

3-10 WebPak 3000 DC Drive Application Workbook, Version 1.1
• Selecting the outer loop type
Refer to figure A.6 in Appendix A of the software manual (D2-3444).
3.3.1 Configuring Jog
Two of the three parameters used to configure jog were set during Quick Start:
JOG SPEED (P.012) specifies the speed level for jogging in either the forward or reverse
direction. This value is the input to a RATELIM block. The output of the RATELIM block is
defined as JOG RAMP OUTPUT (P.294).
JOG ACCEL / DECEL TIME (P.013) sets a common acceleration and deceleration time.
þ
To configure jog:
▲
Set JOG OFF DELAY TIME (P.121) to specify the minimum delay between
removing the jog reference to the drive and the opening of the main contactor.
This delay reduces contactor wear if the drive is jogged repeatedly for a short
period of time.
3.3.2 Selecting the Outer Loop
þ
To select the outer control loop:
▲
Set OCL SELECT (P.817) to select which outer control loop will be configured.
The choices are:
NONE - Sets the drive as a speed regulator.
TENSION , CURRENT , or POSITION - Operates with the speed loop in either a
CASCADE or PARALLEL configuration as selected by OCL TYPE (P.818). Set OCL
SELECT (P.817) to POSITION when OCL TYPE 3 POSN REG (P.814) is set to
ENABLED .
!
ATTENTION: This drive can operate at and maintain zero speed when
JOG SPEED (P.012) is set to zero. A voltage-regulated drive can produce
zero speed at low minimum speed values. The user is responsible for
assuring safe conditions for operating personnel by providing suitable
guards, audible or visual alarms, or other devices to indicate that the
drive is operating at or near zero speed. Failure to observe this precaution
could result in severe bodily injury or loss of life.
Range: 0 to 10 SECONDS P.121 = SECONDS
Range: NONE , TENSION , CURRENT , POSITION P.817 =
!
ATTENTION: The user must read and understand the drive sequencing
description and state diagram (figure 3.3 in the software manual,
D2-3444) before using the
TENSION ON input. Setting OCL SELEC t to any
value 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.