Rockwell Automation WebPak 3000 DC Drive Application Workbook Version 1.1 - Manual (Page 13)

Configuring the Speed Loop 3-3
▲ Set LINE SPEED ZERO ADJ (P.102 ) to adjust the zero point of the
line speed reference input to remove any offset from the input
signal
.
▲ Set TOP LINE SPEED (P.020).
LINE SPEED (P.188) is the analog output of the line speed reference
after it has been scaled by the hardware and software.
þ If LINE SPEED REF SELECT (P.103) = FREQUENCY IN :
▲ Verify that a frequency section speed reference is connected to
terminals 39 (A), 40 (A Not), and 41 (common) on the I/O
Expansion board.
▲ Set FREQ IN FULL SCALE (P.424).
▲ Set FREQ IN ZERO (P.423) .
The selected value of the speed loop reference is displayed in SPD
SOURCE SELECT OUT (P.193) in user-defined units.
þ If the CONTROL SOURCE (P.000) = NETWORK :
▲ Refer to the appropriate network manual for instructions on setting up
the network parameters.
3.1.1 Configuring Trim (Optional)
If the drive is to be configured as a speed follower section, the speed loop reference
function includes a trim reference capability. Trim is based on the signal from the
source selected in
TRIM REFERENCE SELECT (P.108). It is summed with the speed loop
reference before being acted upon by the reference ramping function.
Refer to figure A.4 in the software manual (D2-3444) as you configure trim.
þ
To configure trim:
▲
Set TRIM REFERENCE SELECT (P.108) to specify the trim reference source. The
choices are:
REGISTER - The trim reference signal is based on the value set in TRIM REF
REGISTER (P.107).
ANALOG - The trim reference signal is based on the analog input
(diameter/input range) at terminals 17(+), 18(-), and 16(10V) on the Regulator
board.
Range: -200 to 200 COUNTS P.102 = COUNTS
!
ATTENTION: Do not allow the motor to exceed the maximum safe speed
of the motor or driven equipment as determined by the equipment
manufacturer. Failure to observe this precaution could result in bodily
injury.
Range: 0 to 5000 FPM P.020 = FPM
Range: 2.0 to 250.0 kHz P.424 = K H Z
Range: 2.0 to P.424 P.423 = K H Z