The fault / alarm messages to be suppressed (refer to Section “Fault / alarm messages”) are selected using parameter P2100 while the response is entered using parameter P2101. With MICROMASTER, it is possible to suppress up to 3 fault / alarm messages using the indexed parameters P2100 and P2101. mixer systems), fault-free operation has a higher priority than the protection of the drive system. For special applications, not only this, but fault-free operation is required even if an overload condition exists or external events cause faults. A detailed description of the alarm messages is provided in the parameter list.įrom the perspective of the application and user, fault-free operation is the decisive criterion when it comes to the acceptance of drive systems. A0503 = 503) and can be read out from there. It is furthermore possible to read out the point in time that a fault occurred (r0948) and the number of fault messages (P0952) stored in Parameter r0947.Ī detailed description of the fault messages is provided in the parameter list.Īlarm messages are stored in parameter r2110 under their code number (e.g. The value 0 is entered if a fault has no error value. The associated error value is found in parameter r0949. To reset the fault code, one of three methods listed below can be used:įault messages are stored in parameter r0947 under their code number (e.g.

In the event of a failure, the inverter switches off and a fault code appears on the display. The drive should now run to the defined setpoint by analogue input. Now use a switch between terminals 5 and 8 on the control board. 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. Se the Parameter List for further details. – Check that the setpoint is present (0 to 10V on Terminal 3) or the setpoint has been entered into the correct parameter, depending on the setpoint source (P1000).

– Check that P0700 = 2 (for digital input control) or P0700 = 1 (for BOP control) – Check that a valid ON signal is present If the motor fails to start when the ON command has been given The individual messages are shown in the Parameter list.

Warnings and faults displayed on the BOP with Axxx and Fxxx respectively. To request a quote for a repair or spare, please call 80 or email with the BOP MRO Electric supplies and repairs Micromaster 420 Drives. However, the manual isn’t always the easiest to find or sort through, so below we’re posting the Siemens Micromaster 420 Troubleshooting section from the manual which should help anyone who is working to get the issues with their drive sorted out. Often people have difficulty installing a replacement drive that we send out, and normally it just takes the troubleshooting tips from the manual to get them up and running.

Microline 420 troubleshooting