Kelly Ebike Brushless DC Motor Controller User
’s Manual
V 3.3
Page 13
2,4
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Throttle error at
power up
1. The throttle signal is higher than configured
dead zone at power-on
2. The fault will disappear if restarts or releases
throttle.
3. Configure throttle type as "Hall Active" throttle if
you use that type.
3,1
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Frequent reset
1. The controller will stop driving after detecting
too many resets.
2. Mostly because of B- or return wiring. Use the
heavier and cleaner return wires. For dual
controllers, bond B- of both controllers together
with heavy cable or copper strip.
3. Could be over current protection. May set max
current lower.
4. Restarting will clear the error.
5. Please contact Kelly if it happens repeatedly.
3,2
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Internal reset
Reset caused by over current, high battery voltage
or low supply voltage. It is normal if occurs
occasionally.
3,3
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Throttle short or
open circuit when
using 1-4v hall
sensor throttle
1. Check whether the throttle is short or open
circuit.
2. When the throttle is normal, restart will clear the
error.
3,4
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Throttle isn’t zero
when try to
change direction
The controller won’t change drive direction if
throttle isn’t zero. Also it won’t change direction at
high speed. The controller will wait throttle and
speed close to zero before changing direction.
4,1
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Over voltage at
startup or
regeneration
The controller won’t drive motor if detects
overvoltage at power up. It will cut back regen
current or stop regen at overvoltage. You may set
max voltage threshold with GUI.
4, 2
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Hall sensor signal
error
1. Most likely caused by incorrect hall wiring (to
wrong pin or loose wire).
2. Intermittent or damaged hall sensor.
3. Double check hall angle setting, 60 degree or
120 degree.
4, 3
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Motor over
temperature
1. The motor temperature is higher than configured
max temperature. Controller will shut down and
wait for motor temperature dropping.
2. Change the temperature setting with
configuration program.
4, 4
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Motor locked rotor
When in locked rotor condition, the max output
phase current of the motor will be limited to 90% of
previous current. Once the locked rotor disappear,
