Siemens 420 manual Calculating the motor / control data

Issue 07/04 3 Functions

3.5.3Calculating the motor / control data

Internal motor / control data is calculated using parameter P0340 or, indirectly using parameter P3900 (refer to Section 3.5.2) or P1910 (refer to Section 3.5.4). The functionality of parameter P0340 can, for example, if the motor weight or the stator resistance is known. The following settings are possible for P0340:

0No calculation

1Complete parameterization

For the complete parameterization (P0340 = 1), in addition to the motor / control parameters, parameters are also pre-assigned which refer to the motor rated data (e.g. torque limits and reference quantities for interface signals).

Table 3-9			Parameter for motor/control data
				P0340 = 1
	P0344	Motor weight		x
	P0346	Magnetization time		x
	P0347	Demagnetization time		x
	P0350	Stator resistance (line-to-line)		x
	P0611	Motor I2t time constant		x
	P1253	Vdc-controller output limitation		x
	P1316	Boost end frequency		x
	P2000	Reference frequency		x
	P2002	Reference current		x

NOTE

When exiting the quick commissioning with P3900 > 0 (refer to Section 3.5.2), internally P0340 is set to 1 (complete parameterization).

For the motor data identification (refer to Section 3.5.4), after the measurement has been completed, internally P0340 is set to 3.

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	69