Siemens SINAMICS V20 Series - Page 177

Parameter list
7.2 Parameter list
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
177
Parameter Function Range Factory
default
Can be
changed
Scaling Data
set
Data
type
Acc.
Level
2 Control stop
Note: P1256 = 0:
Maintain DC-link voltage until mains is returned or inverter is tripped with undervoltage. The frequency is
kept above the frequency limit provided in P1257.
P1256 = 1:
Maintain DC-link voltage until mains is returned or inverter is tripped with undervoltage or pulses are
disabled when frequency falls below the limit in P1257.
P1256 = 2:
This option ramps down the frequency to standstill even when mains return.
If mains do not return, frequency brought down under the control of Vdc_min controller until P1257 limit.
Then pulses are disabled or undervoltage has occurred. If mains return, then an OFF1 is active until
P1257 limit. Then pulses are disabled.
P1257[0...2] Frequency limit for
kinetic buffering [Hz]
0.00 -
599.00
2.50 U, T - DDS Float 3
Frequency which kinetic buffering (KIB) either hold speed or disable pulses depending on P1256.
P1300[0...2] Control mode 0 - 19 0 C(1), T - DDS U16 2
Parameter to select the control method. Controls relationship between speed of motor and voltage
supplied by inverter.
0 V/f with linear characteristic
1 V/f with FCC
2 V/f with quadratic characteristic
3 V/f with programmable characteristic
4 V/f with linear eco
5 V/f for textile applications
6 V/f with FCC for textile applications
7 V/f with quadratic eco
19 V/f control with independent voltage setpoint

I
Q
I
9
9
Q
3 
3 
Note: P1300 = 1: V/f with FCC (flux current control)
• Maintains motor flux current for improved efficiency
• If FCC is chosen, linear V/f is active at low frequencies
P1300 = 2: V/f with a quadratic characteristic
• Suitable for centrifugal fans / pumps
P1300 = 3: V/f with a programmable characteristic
• User defined characteristic (see P1320)
P1300 = 4: V/f with linear characteristic and Economy Mode
• Linear characteristic with Economy Mode
• Modifies the output voltage to reduce power consumption