Issue 07/04

4 Troubleshooting

4.2Troubleshooting with the BOP

Warnings and faults are displayed on the BOP with Axxx and Fxxx respectively. The individual messages are shown in the Parameter list.

If the motor fails to start when the ON command has been given: Check that P0010 = 0.

Check that a valid ON signal is present.

Check that P0700 = 2 (for digital input control) or P0700 = 1 (for BOP control).

Check that the setpoint is present (0 to 10V on Terminal 3) or the setpoint has been entered into the correct parameter, depending upon the setpoint source (P1000). See the Parameter List for further details.

If the motor fails to run after changing the parameters, set P0010 = 30 then P0970 = 1 and press P to reset the inverter to the factory default parameter values.

Now use a switch between terminals 5 and 8 on the control board. The drive should now run to the defined setpoint by analogue input.

NOTICE

Motor data must relate to the inverter data power range and voltage.

MICROMASTER 420

Operating Instructions

6SE6400-5AA00-0BP0

153

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Siemens 420 manual Troubleshooting with the BOP