32
04 - Control System
Output Test
The Output Test menu provides manual control of various system functions for troubleshooting purposes
This permits devices to be operated even when prerequisite conditions are not met, such as permitting the
solution solenoid to be active without the scrub system active In addition to output control, each selection
also provides status information for the particular device
Solution Solenoid
The solution solenoid output test is a simple On/Off control for the
solution solenoid The solution solenoid is always connected to Bat+,
and the Main Controller switches the Bat- connection to activate the
solenoid. The second line of the screen provides a confirmation that
the output is active
Horn
The horn output test is a simple On/Off control for the horn The
horn is always connected to Bat+, and the Main Controller switches
the Bat- connection to activate the horn The second line of the
screen provides a confirmation that the output is active.
Backup Alarm (Optional)
The backup alarm output test is a simple On/Off control for the
optional backup alarm If present, the backup alarm is always
connected to Bat+, and the Main Controller switches the Bat-
connection to activate the alarm The second line of the screen
provides a confirmation that the output is active.
Detergent Pump 1 and 2 (Optional)
These two screens allow bidirectional control of the two optional
detergent pump solenoids (located under the operator’s seat)
Pressing the Up/Down arrow buttons select Off, A, or B The status
of the two output lines are shown below that, and will be either 12V
or GND
Each detergent pump uses a DC solenoid to drive a diaphragm in
and out The A-polarity retracts the solenoid plunger, which is the
intake stroke The B-polarity extends the plunger, which is the
pumping stroke However, when the solenoid is off, the internal
return spring also extends the plunger, just like “B”. Therefore,
slowly switching between Off and B will appear as though the
solenoid is not physically doing anything (Refer to the
on page 85 for a further explanation of this )
The outputs from the Main Controller can be either 12V or GND
So to turn the solenoid off, both outputs are set to 12V, which results in zero volts across the coil To retract
the solenoid, the controller positively biases the solenoid (A-direction) To actively extend the solenoid, the
controller reverse biases the solenoid (B-direction)
Output Test
L1 SOLUTION SOL
Back
Set
J1-4 SOULUTION SOL
On
1
Output Test
H1 HORN
Back
Set
J1-22 HORN
On
1
Output Test
H2 BACKUP ALARM
Back
Set
J1-14 BACKUP ALARM
On
1
Output Test
M8 DETERGENT PUMP 1
Back
Set
J1-16 PUMP 1A
J1-17 PUMP 1B
Off
12V
12V
Output Test
M8 DETERGENT PUMP 1
Back
Set
J1-16 PUMP 1A
J1-17 PUMP 1B
B
GND
12V
