Kelly Ebike Brushless DC Motor Controller User’s Manual V 3.3
3.2.3 Communication Port
A RS232 port of controller is provided to communicate with host computer for calibration and
configuration.
Figure 5: standard RS232 interface
3.3 Installation Check List
Before operating the vehicle, complete the following checkout procedures. Use LED code
as a reference. The LED codes are listed in Table 1.
Caution:
• Put the vehicle up on blocks to get the drive wheels off the ground before beginning these
tests.
• Do not allow anyone to stand directly in front of or behind the vehicle during the checkout.
• Make sure both the PWR switch and the brake are off
• Use well-insulated tools.
• Make sure the wire is connected correctly
• Turn the PWR switch on. The LED should blink, then keep on when the controller operates
normally. If this does not happen, check continuity of the PWR and controller ground.
• The fault code will be detected automatically at restarting.
• With the brake switch open, select a direction and operate the throttle. The motor should
spin in the selected direction. Please verify wiring and voltage if it doesn’t operate. Also
check fuse. The motor should run faster with increasing throttle. If not, refer to Table 1 LED
code, and correct the fault according to the code.
• Take the vehicle off the blocks and drive it in a clear area. It should have smooth
acceleration and good top speed.
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