AB Quality Allen-Bradley 1394 User Manual page 163

[Vel Rate Lim]
The rate at which a velocity command is
incremented or decremented per unit of accel/
decel time (in seconds).
Important: The velocity rate limit command
overrides a position controller velocity rate limit
command. This parameter is automatically
changed to its maximum value when [Motor
Type] is selected.
[Vel Ref Fract]
Lower 16 bits of [Vel Ref Whole] (parameter 204),
forming a 32 bit velocity reference.
[Vel Ref Whole]
This parameter is the present value of digital
velocity reference and must be the destination of
link for any data to be output.
[Vel Source]
Selects the velocity command source(s) within
the drive. Automatically changed when [Mode
Sel] is changed (for convenience during
commissioning).
For Example: Axis 0, 1, 2 could be set in (#0)
analog reference while axis 3 could be set in (#1)
digital input.
Configuring Your 1394 Analog Servo System
Parameter Numbers
Parameter Group
Display Units
Parameter Type
Change While Running
Linkable
Minimum Value
Maximum Value
Default Value
Parameter Numbers
Parameter Group
Display Units
Parameter Type
Linkable
Parameter Numbers
Parameter Group
Display Units
Parameter Type
Linkable
Minimum Value
Maximum Value
Default Value
Parameter Numbers
Parameter Group
Display Units
Parameter Type
Change While Running
Linkable
Default Value 0
Selections 0
1
2
3
136, 137, 138, 139
Vel Cmd Data
rpSS (revolutions/second/second)
Read/Write
Yes
No
0 rpSS
34015 rpSS
34015 rpSS
208, 209, 210, 211
Linear List
rpm
Read/Write
Yes
204, 205, 206, 207
Vel Cmd Data
rpm
Read/Write
Yes
-8000.0 rpm
+8000.0 rpm
0.0 rpm
364, 365, 366, 367
Vel Cmd Data
None
Read/Write
Yes
No
"Anlg Vel"
"Anlg Vel"
analog ref from [Vel Command] (parameter 220)
"Dig Vel"
internal digital reference [Vel Ref Whole/Fract] (204, 208)
"Anlg+Dig Vel"
analog and digital reference
"Zero Vel"
zero velocity reference
8-27
Publication 1394-5.0 — May 2000