AB Quality Allen-Bradley 1394 User Manual page 140

8-4 Configuring Your 1394 Analog Servo System
[100% Torq Vel]
Motor velocity at 100% rated motor torque.
Note: Before making modifications to Mtr Data
parameters, [Motor Type] must be set to "custom
motor".
[300%Torq Vel]
Motor velocity at 300% rated motor torque.
Note: Before making modifications to Mtr Data
parameters, [Motor Type] must be set to "custom
motor".
[Anlg Vel Ofst]
An offset value that can be used on an analog
velocity input to counter voltage offsets on that
input. This value is added after the input scaling
has taken place, therefore changing the analog
input scaling will change this offset
compensation.
[Anlg Vel Scal]
Use this parameter to determine how the A/D
converter value is scaled. It is set to the number
of motor rpm that is to represent 1 volt of input
command. The desired input velocity command
voltage to motor rpm scaling is accomplished
with this parameter. The default setting is 500
rpm/volt. Use the following formula if the
maximum motor speed (rpm) and maximum
velocity command (volts) are known.
[ATune Current]
The motor current used while an auto tune cycle
is executing is specified with this parameter. In
most cases, the default setting will be
satisfactory.
Publication 1394-5.0 — May 2000
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
Change While Running
Linkable
Minimum Value
Maximum Value
Default Value
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
Change While Running
Linkable
Minimum Value-
Maximum Value
Default Value
MaximumDesiredMotorRPM
----------------------------------------------------------------------------------- -
MaximumVelocityCommand
Parameter Numbers
Parameter Group
Display Units
Parameter Type
Change While Running
Linkable
Minimum Value
Maximum Value
Default Value
392
Mtr Data
rpm
Read/Write
Yes
No
1 rpm
8000 rpm
This is determined by the motor catalog number.
388
Mtr Data
rpm
Read/Write
Yes
No
1 rpm
8000 rpm
This is determined by the motor catalog number.
276, 277, 278, 279
Vel Cmd Data
rpm
Read/Write
Yes
No
496.00 rpm
496.00 rpm
0.00 rpm
272, 273, 274, 275
Vel Cmd Data
rpm/v
Read/Write
Yes
No
1000.0 rpm/v
+1000.0rpm/v
+500.0 rpm/v
for example:
3000RPMMaximum
RPM
---------------------------------------------------------------------------- -
= -------------- -
8VDCMaximumCommand
Volts
288, 289, 290, 291
ATune Config
amps
Read/Write
Yes
No
10% rated motor current
200% rated motor current
50% rated motor current
3000RPM
= --------------------------- -
Volts