Operating Instructions

SED2 VFD Operation & Maintenance Manual
68 Siemens Building Technologies, Inc.
Chapter 7 — Troubleshooting
Troubleshooting Using the Operator Panel
If the motor does not start with the ON command:
• Check if Commissioning Parameter Filter P0010=0 (factory setting).
• Check if there is a valid ON signal.
• Check if Selection of Command Source parameter P0700=2 (for digital input control)
or P0700=1 (for BOP control).
Check if the correct setpoint is available (0 to 10V on terminal 3), or if the setpoint was
entered in the correct location in dependence of the setpoint source (Selection of Frequency
Setpoint parameter P1000). See the parameter list (see Appendix A in this document) for
more detailed information.
If the motor does not start after changing the parameters, set Commissioning Parameter
Filter P0010=30 (factory setting), set Parameter Reset P0970=1 (factory reset), and press P
to reset the SED2 to the factory-set parameter default values.
Use a switch between terminals 5 and 8 on the control terminal bar. The drive should now
run according to the default setpoint at the analog input.
NOTE: The voltage and current range of the SED2 must match the motor data.