Operating Instructions

Troubleshooting
Siemens Building Technologies, Inc. 89
Troubleshooting Using the Operator
Panel
NOTE: The voltage and current range of the SED2 must match
the motor data.
If the motor does not start with the ON command:
1. Check if Commissioning Parameter Filter P0010=0 (factory setting).
2. Check if there is a valid ON signal.
3. Check if Selection of Command Source parameter P0700[0]=2 (for
digital input control) or P0700[1]=1 (for BOP control).
4. Check if the correct setpoint is available (0 to 10V on terminal 3), or if
the setpoint was entered in the correct location for the setpoint
source (Selection of Frequency Setpoint parameter P1000[0]=2).
If the motor does not start after checking these parameters, reset the
SED2 to the factory-default parameter values according to the Reset
to Factory Defaults section in this manual.
Use a switch between terminals 5 and 9 on the control terminal bar.
The SED2 should now run according to the default setpoint at the
analog input.
Use r0722 to check on/off status of digital inputs. Use r0752 to check
the smoothed value of analog inputs.