Sunmax RT-50D User manual

Manual for Control Panel of
Floor Scrubber Machines
Model Number
RT50D, RT-50D+
RT50, RT-50+

Table of Contents
1. Power-On Screen................................................................................................. 3
2. Interface Description........................................................................................... 3
3. Battery Type Selection.........................................................................................4
4. Electrical Parameters...........................................................................................5
5. Explanation of Error Codes.................................................................................5

1. Power-On Screen
Figure 1-1
Upon powering on the floor scrubber, the screen displays "SUNMAX" on the first
line and "Automatic System" on the second line.
2. Interface Description
The interface when the machine works normally is shown in Figure 2-1.
Figure 2-1
①Brush Disk Motor Status: Displays "Brush" when the brush disk motor is active
and shows nothing when it's inactive; controlled by the brush disk button on the
panel.

②Clean Water Valve Status: 1 indicates the water valve is dispensing water; 0
indicates the water valve is closed, controlled by the water valve button on the panel.
③Moving Status: Default "P" for Parking; "D" for forward; "R" for reverse with
horn beep; controlled by forward and reverse buttons on the panel.
④Vacuum Motor Status: Displays "Vacuum" when the vacuum motor is active and
shows nothing when it's inactive; controlled by the vacuum button on the panel.
⑤Operating Time: T0000 displays the total accumulated working minutes. After the
timer reaches 9999 minutes, press and hold the combination of "Reverse," "Forward,"
and "Water Valve" buttons for 3 seconds to reset the timer.
⑥Battery Voltage: Displays the current battery voltage.
3. Battery Type Selection
This panel supports 2 types of batteries: Lead-Acid and Lithium Battery. After
power-on, press and hold the combination of the "Water Valve" and "Brush" buttons
for 3 seconds to switch the battery type. After selection, shut down and restart the
machine to use the chosen battery type.
Battery Type
Voltage
Diagram
Lithium Battery
Fully Charged: 27.0V
Zero Charge: 23.5V
Protection Voltage for Brush and
Vacuum: 23.5V
Lead-acid Battery
Fully Charged: 25.0V
Zero Charge: 21.6V

Protection Voltage for Brush and
Vacuum: 21.6V
4. Electrical Parameters
Supply Voltage: DC 24V ~ 35V
Operating Temperature: -20°C ~ 80°C
Operating Humidity: 0 ~ 95%RH
Storage Temperature: -40°C ~ 85°C
5. Explanation of Error Codes
Code
Explanation
Diagram
Low Battery
Battery voltage is low, please
charge as soon as possible.
Brush error
Brush disk motor overcurrent,
inspect brush assembly and floor
status
Vacuum error
Vacuum motor overcurrent, inspect
vacuum assembly and floor status