
30
Check connection from the
controller board to the L/R
encoder switch.
Turn power off. Check the
computer board connection
labeled J5, the intermediate board
connections J5 and J30 and the
plug at the left / right motor. If the
connections look good check
continuity from computer board J5
pins 15, 16 & 17 to int. board J5
pins 15, 16 & 17, and from int.
board J30 pins 2, 3 & 4 to the left
/ right motor connector pins 2, 3 &
4.
Faulty encoder switch in the L/R
motor.
Set your multi-meter to DC Volts.
On the intermediate board,
connector J30 across pins 2 & 3
should be 5 volts. Across pins 3 &
4 should fluctuate between 0v and
5v as you slide the robot left to
right. If not replace the L/R motor.
If the motor has a small pigtail
harness use PN-49505565. If the
connector is right on the motor
use PN-49505555.
L/R Encoder Error
During the vend cycle,
the robot moves to the
right about 2” then
returns home. Display
reads “Select Another”.
Three failed attempts
result in this error.
Faulty intermediate board / faulty
computer board
When replacing the computer
board note the software on the
defective board as well as the
position of the jumper JP1. Make
sure the software and jumper
postion are the same. Incorrect
software or jumper may cause the
machine to function improperly.
Set your multi-meter to DC Volts.
On the computer board,
connector J5 across pins 15 & 16
should be 5 volts. Across pins 16
& 17 should fluctuate between 0v
and 5v as you slide the robot left
to right. If not replace the
intermediate board. PN-
49405540. If the pulse is seen
replace the computer board PN-
19300529.
Check connection from the
controller board to the F/B
encoder switch.
Turn power off. Check the
computer board connection
labeled J5, the intermediate board
connections J5 and J29 and the
plug at the front / back motor. If
the connections look good check
continuity from computer board J5
pins 12, 13 & 14 to int. board J5
pins 12, 13 & 14, and from int.
board J29 pins 2, 3 & 4 to the
front / back motor connector pins
2, 3 & 4.
F/B Encoder Error
During the vend cycle,
the robot moves to the
back about 2” then
returns home. Display
reads “Select Another”.
Three failed attempts
result in this error.
Faulty encoder switch in the F/B
motor.
Set your multi-meter to DC Volts.
On the intermediate board,
connector J29 across pins 2 & 3
should be 5 volts. Across pins 3 &
4 should fluctuate between 0v and
5v as you slide the robot front to
back. If not replace the F/B motor.
If the motor has a small pigtail
harness use PN-49505565.
If the connector is right on the
motor use PN-49505555.
Содержание F820
Страница 1: ...F820 Service and Parts Manual Ver FC031504...