User`s manual

Magtrol Model DSP6001 Dynamometer Controller

Chapter 8 – Computer Controlled Operation

OPERATION

8.6.7 MiSCeLLaneoUS CoMManD

Command

Code

Function Explanation

DIR# Selects/Deselects the quadrature

input circuitry. User has access

to up/down counter via OH1

command. The displayed rpm

is sent to the GPIB/RS-232 and

applied to the PID Loop.

NOTE: Only applies to DSP6001

Revision 7.5 and later versions.

Values for # are:

0 = for single frequency

1 = for quadrature input

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).

IOXX.XX Applies an offset to the output DAC

on channel 1 only. Used to clamp

motor speed prior to testing.

NOTE: Only applies to DSP6001

Revision 7.6 and later versions.

Values for # range from 0 to 99.99.

OH1 Returns quadrature counter

information.

Two 24-bit hex values are returned. The

ﬁrst value is the up/down count. The

second value is an unused value.

SAVE Saves present conﬁguration of unit

to non-volatile memory.

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).

Note: For further reference, see Appendix F – Remote Conﬁguration Flow

Charts.