
18
Magtrol Model 6200 Open Loop Dynamometer Controller
Chapter 5 – Computer Controlled Operation
OPERA
TION
Command
Category
Command
Code
function
explanation
Setup
UI#
Sets dynamometer
torque units to #
note:
For Hp and watts
calculations to be correct, the correct
dynamometer torque units must be
specified. Values for # are:
0 = oz.in. 5 = kg.cm.
1 = oz.ft. 6 = N.mm.
2 = lb.in. 7 = N.cm.
3 = lb.ft. 8 = N.m.
4 = g.cm.
Torque units default to 0 (oz.in.) if out
of range. Programmed value # is not
saved at power down.
Setup
UR#
Sets readout torque
units to #
This command sets the torque unit
conversion for the torque readout.
Values for # are:
0 = oz.in. 5 = kg.cm.
1 = oz.ft. 6 = N.mm.
2 = lb.in. 7 = N.cm.
3 = lb.ft. 8 = N.m.
4 = g.cm.
Torque unit conversion defaults to 0
(oz.in.) if out of range. Programmed
value # is not saved at power down.
Misc.
X
Prompts to return %
current output
This command returns the % current
value in the format “I##.##”. The value
will be between 0 (no loading) and
99.99 (full loading).
Misc.
I#
Sets current output
to #
The power supply outputs a fixed
value of current. Use any value #
between 0 and 99.99%. (99.99% = 1
Amp.)
5.5
aCQuiring speed-torQue data
Speed-torque data is a fixed-length string in ASCII format with a floating point decimal. Use the
following string format:
SdddddTdddd.R[cr][lf]
or
SdddddTdddd.L[cr][lf]
where . . .
S = speed in RPM. No leading zeroes are used.
d = decimal digit 0 through 9
T = torque in units selected during setup. The torque value always contains a decimal point.
L = counterclockwise dynamometer shaft rotation (left)
R = clockwise dynamometer shaft rotation (right)