Siemens CU240S DP Operations Instructions download pdf (Page 29)

Commissioning (software)

2.3 Factory settings

Control Units CU240S

Operating Instructions (Compact), 04/2006, A5E00766042B AA

2-9

2.3 Factory settings

Factory default settings

The inverter system is shipped from the factory as a Control Unit and a Power Module. The

Control Unit has three or seven LEDs (depending on the type of Control Unit) on the front

panel which display the operating state of the inverter. For commissioning and operation the

control unit has to be fitted to the power module as shown in section 4.

After a factory reset, the inverter can be operated without additional parameterization if the

inverter default settings (which depend on the inverter type and size) match the following

data of a 4-pole motor:

Default line supply frequency 50 Hz

Rated motor voltage P0304

Rated motor current P0305

Rated motor power P0307

Rated motor frequency P0310

Rated motor speed P0311

(A Siemens standard motor is recommended.)

Further, the following conditions must be fulfilled:

Control (ON/OFF command) using digital inputs (CU240S) See pre-assigned inputs below.

Asyncronous motor P0300 = 1

Self-cooled motor P0335 = 0

Motor overload factor P0640 = 150 %

Setpoint input using analog input 1 P1000 = 2

Min. frequency P1080 = 0 Hz

Max. frequency P1082 = 50 Hz

Ramp-up time P1120 = 10 s

Ramp-down time P1121 = 10 s

Linear V/f characteristic P1300 = 0

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Siemens CU240S DP Operations Instructions Page 29