HENNESSY INDUSTRIES Coats IBS 2000, Service Manual And Troubleshooting Manual, Page: 25 / 40

Service Manual — COATS Model IBS 2000 • 21
Diagnostic Procedures
Motor and Motor Controller Checking
Procedure
To verify the operation of the motor and motor con-
troller the SSR's (Solid State Relays) must be activated.
To do this it is necessary to simulate the signal pro-
duced by the CPU.
Note: Use of an in-line adapter is recom-
mended for this procedure, like the one from
Contact East,
(part #118-785 Modapt
Modular Adapter). For ordering information
call, 1-800-225-5334.
Caution! If the spin and brake are activated
at the same time, the motor controller will
be destroyed!
Note: Use CIRCUIT GROUND for checking
voltages. Refer to the wiring diagram
#112368, in the back of this book.
1. Check for 5 vdc on the CPU location P12/CON-
TROL pins 1, 3 and 6 (Tabs 2, 4 and 7 of the Modapt
Adapter). If Voltage is not present refer to the DC volt-
age checks.
2. To activate the spin, connect a jumper to circuit
ground and touch pin 1 of P12/CONTROL (Tab 2 of the
Modapt adapter). The motor should run clockwise. If
the motor fails to respond refer to the WHEEL DOES
NOT SPIN trouble shooting guide.
CAUTION! DO NOT perform this procedure
for more than Two (2) seconds.
3. To activate the brake connect a jumper to circuit
ground and touch pin 6 of P12/CONTORL (Tab 7 of the
Modapt Adapter) The motor should spin counter clock-
wise. If the motor fails to respond, refer to the WHEEL
DOES NOT STOP trouble shooting guide.
Caution! DO NOT perform this procedure for
more than Two (2) seconds.
Direct Drive
3-13-98