7.2 Common Faults and Solutions. Bedford B503DSL-4015, B503DSL-4003, B503DSL-4180, B503DSL-2015, B503DSL-4020, B503DSL-4025, B503DSL-2010, B503DSL-4050, B503DSL-4120, B503DSL-2030

Fault

Code

ITE

EEP

Fault Type

Current detection fault

EEPROM fault

Reason

7. Power module bridge is damaged;

8. Control board is abnormal

1. Wires or connectors of control board are loose;

2. Hall sensor is damaged;

3. Amplifying circuit is abnormal

1. R/w fault of control parameters;

2. EEPROM is damaged

Solution

1. Check the wiring and connectors;

2. Ask supplier for support;

3. Ask supplier for support

1. Press

Ask for support;

2. Ask for support to reset,

7.2 Common Faults and Solutions

Controller may have following faults or malfunctions during operation, please refer to the following solutions.

(1) No display after power on:

 Inspect whether the voltage of power supply is the same as the controller rated voltage or not with multi-meter. If the power supply has problem, inspect and solve it.

 Check the CHARGE light. If the light is off, Please ask for support. If the light is on, the fault may be lies in the switching power supply. Please ask for support.

(2) Power supply air switch trips off when power on:

 Inspect whether the input power supply is grounded or short circuit. Please solve the problem.

(3) Motor doesn’t move after controller running:

 Inspect if there is balanced three-phase output among U, V, W. If yes, then motor could be damaged, or mechanically locked. Please solve it.

 If the output is unbalanced or lost, the controller drive board or the output module may be damaged, ask for support.

(4) Controller displays normally when power on, but switch at the input side trips when running:

 Inspect whether the output side of controller is short circuit. If yes, ask for support.

 Inspect whether ground fault exists. If yes, solve it.

 If trip happens occasionally and the distance between motor and controller is too far, it is recommended to install output AC reactor.

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