SAMI G S 9.1.6 Group 16 - Out Sig Scaling These values can be altered with the SAMI GS running. 1 Scale AO1, 2 Scale AO2 If the desired value should be scaling factor is calculated as follows: This parameter is the scaling factor for the Analogue Output 1 (2) signal. If you select 100 %, the nominal value of the output signal corresponds to 20 mA. a) Minimum output is 0 mA X [%] = 100 % * I AO * Y / (20 mA * Z) The nominal values for output signal Y are as follows: b) Minimum output is 4 mA X [%] = 100 % * ( I AO - 4 mA) * Y/(16 mA * Z) Frequency: 50 Hz Speed: motor speed at 50 Hz accord- ing to motor pole number Current: nominal current of motor ( I M ) Power:
nominal power of motor ( P M ) Torque: nom. power of motor P M /speed (motor data given in Start-Up Data) DC Voltage: DC voltage is 1.35 * nominal supply voltage ( U N , Start up Data par. D). Mot. Volt.: U N , Start up Data para. D Note! If the output voltage is set higher than U N (para. 27.2. > 1), the scaling factor should be X [%] = scaling value I AO = desired output current 0(4) - 20 mA Y = the nominal value in units of se- lected output signal Z = the desired value in units of output signal which corresponds to I AO I AO [mA] 20 100 % 200 % 10 50 % With PFC macro the nominal values are: Reference value, actual value 1, actual value 2, PI-Controller output = 100 % of scaled values.
4 0 0.5 ∗ Y 1 ∗ Y Error value: +100 % = 20 mA; -100 % = 0 mA (4 mA). This means that 0 % correspond to 10 mA (12 mA). Figure 9-4. Scaling value. If the desired value should be 20 mA, the scaling factor is calculated as follows: X [%]= 100 % * Y / Z 45 Parameter Range/Unit Description 1 Scale AO1 2 Scale AO2 10...1000 % 10...1000 % Analogue Output signal 1 scaling factor Analogue Output signal 2 scaling factor