Friendly Robotics robomower RL350 Service Manual page 169

221 Drive motors (Backward)
222 Drive motors (Backward)
230 Drive motors (Backward)
231 Drive motors (Backward)
240 Drive motors (Backward)
241 Drive motors (Backward)
242 Drive motors (Backward)
243 Drive motors (Backward)
5.6.2 Mowing Motors Problems
Fault
Diagnosed item
#
301 Mowing motors
302 Mowing motors
303 Mowing motors
304 Mowing motors
305 Mowing motors
306 Mowing motors
307 Mowing motors
331 Mowing motors
332 Mowing motors
333 Mowing motors
334 Mowing motors
335 Mowing motors
336 Mowing motors
337 Mowing motors
341 Mowing motors
342 Mowing motors
343 Mowing motors
344 Mowing motors
345 Mowing motors
346 Mowing motors
347 Mowing motors
351 Mowing motors
352 Mowing motors
353 Mowing motors
Left motor PWM>95%
Right & Left motors
PWM>95%
Right wheel PWM>Left
wheel PWM
Left wheel PWM>Right
wheel PWM
Right PWM<78 or >82
Left PWM<78 or >82
Right & Left PWM<78
or >82
Measured PWM
difference >2
Meaning
Right Motor current > 100mA
Mid Motor current > 100mA
Right + Mid Motor current >
100mA
Left Motor current > 100mA
Right + Left Motor current >
100mA
Mid +Left Motor current >
100mA
Right +Mid +Left Motor
current > 100mA
Right Motor current < 100mA
Mid Motor current < 100mA
Right +Mid Motor current <
100mA
Left Motor current < 100mA
Right +Left Motor current <
100mA
Mid +Left Motor current <
100mA
Right +Mid +Left Motor
current < 100mA
Right Motor current > 2A
Mid Motor current > 2A
Right +Mid Motor current >
2A
Left Motor current > 2A
Right +Left Motor current >
2A
Mid +Left Motor current > 2A
Right +Mid +Left Motor
current > 2A
Right Motor current > 100mA
Mid Motor current > 100mA
Right +Mid Motor current >
100mA
Left wheel friction is too high
Right & Left wheels friction is too high
Right wheel friction>Left wheel friction, or
Right motor is slower than Left motor
Left wheel friction>Right wheel friction, or
Left motor is slower than Right motor
Test again
Test again
Test again
Test again
Possible cause
Right Motor power unit is faulty
Mid Motor power unit is faulty
Right +Mid Motor power units are faulty
Left Motor power units is faulty
Right +Left Motor power units are faulty
Mid +Left Motor power units are faulty
Right +Mid +Left Motor power units are
faulty
Right Motor is disconnected
Mid Motor is disconnected
Right +Mid Motor are disconnected
Left Motor is disconnected
Right +Left Motors are disconnected
Mid +Left Motors are disconnected
Right +Mid +Left Motors are disconnected
Right Motor is overloaded
Mid Motor is overloaded
Right +Mid Motors are overloaded
Left Motor is overloaded
Right +Left Motors are overloaded
Mid +Left Motors are overloaded
Right +Mid +Left Motors are overloaded
Right Motor stopping is faulty
Mid Motor stopping is faulty
Right +Mid Motors stopping is faulty
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