
Now try the jog process again. If motors still do not jog, proceed to the
folloving section.
2.3.1.4 Test Move
Connect a Model 431 programmer to the 430. Remove the screv terminal block
from pins
1
through 22 and place the screv tenainal block connected to the 431
in
its
place. If you do not have a Model 431, contact your local distributor
or Compumotor's application eqgineering department at 1-800-358-9068. See
Figure 1-6 for location of switches on 431. This device should
be
connected
to the lov true end for proper interface vith the 430 unless the 430 has been
changed to operate on high true signals. Nov place a 0255 on the thumbvheels
and activate the command strobe (switch labelled
MD
STB). This will cause the
430 to command the motor/drive to perform a one revolution move in the
CW
direction, and then a one revo:lution move in ,the
CCW
direction. The
CW
and
CCW
motor rotation
is
the movernent direction when viewing the front end of the
motor's mounting flange. After the
CCW
move
is
completed, the
LED
will
turn
red. When this occurs, simply reset the 430 lby grounding terminal 24. If the
above motlon does not occur, connect 431 interface to 430 to the high true end
and repeat the above proceedure. If the overtravel
limits
are not in place no
motion
will
occur and the
LED
will
turn red irmediately. If the
LED
does not
turn red immediately, but the motor does not move, the indexer/drive cable may
be
faulty. Repeat this test v:Lth a spare cable (refer to Section 2.3.1.2).
If the 0255 move does not occur vith 431 connected on lov or high true, go to
431 functional test. Otherwist?, see Section 2.3.2.3.
2.3.1.5 431 Functional Test
To check this, set the 431 pn the low true end and put a 9999 on the
rhumbwheels. Now check the 430 bits 0-15 vit'h a voltmeter for proper values.
Eae Figure 1-7 for proper voltage readings on each bit. Repeat this
proceedure vith a 6666 setting on the thumbvheels. If voltages shovn in the
figure correspond to measured values, the 431 is fuctioning properly. If your
430 is configured to operate
on
high true signals, the voltages
will
be
opposite from what
is
shovn (i.e.. 0 volts vill be
5
volts and so on). If the
voltages correspond nov, proceted to the jog inputs section. However,
if
the
voltages do not check, examine the wiring from the 431 to the 430 for proper
connections and continuity. Now attempt the test move process again and
proceed to next paragraph if no motion occurs.
2..3.1.6 Faulty Drive
If the motor has no holding torque, this
is
a good indication that the drive
is
faulty. The easiest way to determine this
is
to connect a spare drive to
the 430, or monitor the pulse output with an oscilloscope. To check with a
spare drive, disconnect the cable from the existing drive and connect
it
to
the spare motor/drive. Check to see
if
this drive nov has holding torque
present. If the new motor/drive vorks, return faulty unit for repair. See
Section 3.0 for return materials assistance. Make sure when you are
connecting the new motor/drive that the cable is shielded and one end
is
connected to earth ground. If new drive functions properly, proceed to the
next paragraph. If spare drive also does not function, go to pulse output
failure.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com