Rockwell Automation WebPak 3000 DC Drive Application Workbook Version 1.1 - Manual (Page 52)

9-2 WebPak 3000 DC Drive Application Workbook, Verson 1.1
þ If TENSION SETPOINT SEL (P.855) = REGISTER :
▲ Set TENSION SETPOINT (P.854).
þ If TENSION SETPOINT SEL (P.855) = ANALOG :
▲ Set TENSION SETPT SIG TYPE (P.413) .
▲ Set TENSION SETPOINT ZERO (P.414).
▲ Set TENSION SETPOINT GAIN (P.415).
TENSION SETPOINT IN (P.492) is the digital value of the analog reference.
9.1.1 Stall Tension Mode
Stall tension can be configured as a percentage of the tension setpoint or as a fixed
value independent of the tension setpoint.
For example, if stall tension is set at 25% of the tension setpoint, the value of the stall
tension reference would be 1024 counts when the tension setpoint is at its maximum
count value of 4095.
Setting the stall tension at a fixed value of 1024 counts will produce the same level of
stall tension; however, the value will not change as the tension setpoint is changed.
þ
To operate the drive in stall tension mode:
The tension on input (terminal 63 on the I/O Expansion board) must be asserted (input
status is displayed in
TENSION ON DIN TP (P.498)). The section run input must not be
asserted.
▲
Set STALL TENSION PERCENT (P.135) to set the stall tension reference as a
percentage of the tension setpoint as established in section 9.1.
þ If STALL TENSION PERCENT (P.135) = 0, the stall tension reference is the
value of STALL TENSION FIX (P.134), which is an incremental reference
adjustable from zero to maximum tension.
▲ Set STALL TENSION FIX (P.134). Note that P.134 should be used only
when P.135 is set to zero, and conversely, P.135 should be used only
when P.134 is set to zero
.
Range: 0 to 4095 COUNTS (4095 COUNTS = RATED TENSION ) P.854 = COUNTS
Range: 0 to 10 V, +/-10 V, 4 to 20 mA, 10 to 50 mA P.413 =
Range: -200 to 200 COUNTS P.414 = COUNTS
Range: 0.750 to 2.250 P.415 =
Range: 0.0 to 100.0% P.135 = %
Range: 0 to 4095 COUNTS (4095 COUNTS = RATED TENSION ) P.134 = COUNTS