How to Set SW900 LCD Display Parameters

07 Fri

How to Set SW900 LCD Display Parameters

Following are the programs/parameters and what they stand for:

P01 Background luminance. 1 is the darkest, 3 is the brightest

Totally depends on your choice.

P02 Unit of the mileage. 0 is KM, 1 is MILE

Switches between Kilometers and Miles.

P03 Voltage grades. 24V, 36V, 48V.

The battery and the kit voltages should match!

P04 Sleep time. 0 is without sleep, other numbers stand for the sleep time (1-60 min).

Depends on your choice.

P05 PAS grades.

0, Has 3 grades mode: 1 grade 2V, 2 grade 3V, 3 grade 4V

1, Has 5 grades mode: 1 grade 2V, 2 grade 2.5V, 3 grade 3V, 4 grade 3.5V, 5 grade 4V

Options 0 and 1 indicate how much electric assist each grade will provide from the battery while pedaling and will affect the pedaling speed accordingly. For example, in option 0 the grade 2 will assist you with 3v while it is 2.5v in option 1.

P06 Wheel size. Unit: inch. Precision: 0.1

Wheel size unit shown in inches. Must be set correctly.

P07 Speed measuring magnet. Range: 1-100

This is 47 for direct drive motors and 86 for geared ones.

P08 Speed limit. Range: 0-50 km/h, 100 means no limit

The limit set in Km and can not be switched into a mile. So calculate it carefully when you set the limit.

No-Communication Status (controlled by the meter): when the real speed is over the ones

we set, the meter would shut off PWM output; when less than the speed we set, the meter

would turn on PWM output automatically, the driving speed would be ±1km/h; (Speed limit

is for PAS, not for Throttle)

Communication Status (controlled by the controller): The driving speed keeps same with the

ones we set. Random error: ±1km/h. (Speed limit is for both PAS and Throttle)

Notes: These data are based on KM. When changing KM to Mile, the speed value on the

screen would convert to correct Miles automatically, but if you do not change the setting of

speed limit from KM to Mile, it would be different from the real speed limit in Mile.

P09 Zero start & Non-zero Start. 0 is Zero Start, 1 is Non-zero Start

Zero start (0) will engage the motor instantly while Non-zero start (1) will give some delay when you throttle.

P10 Driving mode.

0 is driven by PAS. Throttle is useless at this time. Use this option if you do not want to use throttle.

1 is driven by Throttle. PAS is useless at this time. If you do not need PAS, then use this option.

2 is driven by PAS & Throttle. Throttle is useless at Zero Start status. Both throttle and PAS are active.

P11 PAS sensitivity. Range: 1-24

Set the sensitivity carefully, higher the value more sensitive the PAS is.

P12 PAS start strength. Range: 0-5

Lower value provides a little assist when you start pedaling.

P13 PAS magnet type. There are 3 types: 5, 8, and 12. Dots on the magnetic ring. It’s 8 as default if you have purchased a kit from us.

P14 The Current-limiting of Controller. The original Current is 12A. Range:1-20A

Please check the current your controller and the hub motor can handle. Set the limit accordingly.

P15 Not implemented now.

P16 ODO Zero-Out: Long press the upper key for 5 seconds and ODO will zero out.

Use this option to reset ODO.

P17 Power choice function from 250W-1000W.

This option will let you set the wattage of your electric hub motor. Some versions of SW900 do not have P16 and P17.

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