HENNESSY INDUSTRIES Coats IBS 2000, Service Manual And Troubleshooting Manual

Page: 16 / 40

12 • Service Manual — COATS Model IBS 2000
Direct Drive
Wheel does not spin
Perform pre-
diagnostic check
(balancer must be
displaying
merchandising
message to proceed).
Check set-up to
verify auto-spin is
on. Attempt to spin
the wheel.
Cross reference
error message to
table and
troubleshoot from
the given location.
Yes
Yes
No
No
Yes
No
Unplug
P3 on motor
controller. Check for
+5v on pin 3 of
CPU?
No
Replace the motor
controller.
Yes
Replace the CPU.
Does voltage
on P12-1 drop to
+.45v when spin is
pressed?
Yes
Is the voltage
correct on T1of
the MC board?
Yes
Troubleshoot AC.
Replace motor
controller.
Yes
Does an error
message appear?
Does the wheel
start to spin?
Does it
complete the
spin?
Check/Replace control
cable.
Replace motor
controller.
Yes
Did you enter
wheel
parameters?
Yes
No
Enter the
A / W / D
Check control
cable from main
CPU to MC Board.
Is it Plugged in?
No
Plug it in.
Check for +5v on
pin 1 of P12
(control) on the
main CPU
Check Interlock
switch cable on
P7of MC board. Is
It plugged in?
Disconnect Interlock
switch from P7 on the MC
board. Check continuity
(with the hood down)
between pins 1&2. Do
you have continuity?
No
Yes
Replace
Interlock
switch.
Yes
No
No
No
Troubleshooting
Complete, calibrate.
Do you have
+5v on pin 3 P10
(power) on The
main CPU?
No
Wheel Does Not
Spin