Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 - Manual (Page 93)

Monitor Menu • Monitor Variables 71
Publication 1398-PM601A-EN-P — October 2000
MENUS
Velocity Scale
Scale the Programmable Monitor output when set to a velocity variable. The value is used to scale the
output in velocity units per volt. Normally, you would enter 1/10 of the maximum speed of your motor.
The maximum speed will then result in a monitor voltage of 10 volts. For example, if the Scale parame-
ter is set to motor revolutions, the Timebase is minutes, and the maximum speed of the system is
3000 RPM, enter a value of 300. This will cause the Programmable Monitor output to be 0 volts at
0 RPM, 1 volt at 300 RPM, 10 volts at 3000 RPM and -10 volts at -3000 RPM.
Velocity Monitor Filter
Velocity Monitor filter establishes the amount of filtering of the FVEL1 variable. This value has a range
of 0 to 32,767. A value of 32,767 is no filtering (quickest change of the value of FVEL1) and a value of
0 is maximum filtering (slow change).
RFDR (Feedrate) Current run time feedrate value in percent. When assigned to the
Monitor output, +10 volts equals 200% while -10 volts corresponds to
0%.
VCMD
(Velocity Command)
2
Velocity command as defined by the Velocity Scale parameter. (For
example, 10 volts is 3,000 RPM if Velocity Scale = 300.)
VEL1
(Motor Velocity)
2
Actual motor velocity. When assigned to the Monitor output, 10 volts
is the maximum motor speed as set by the Velocity Scale parameter.
(For example, 10 volts is 3,000 RPM if Velocity Scale = 300.)
VEL2 (Velocity2)
2
Velocity from Encoder 2 in user units per Timebase.
1. Velocity monitor filter is used to establish the filtering value on FVEL1, the filtered motor veloc-
ity.
2. Velocity Scale is used to establish a scale (velocity units/volt) for the Programmable Monitor out-
put.