Siemens SINAMICS V20 Operating Instructions Manual page 330

Parameter list
8.2 Parameter list
Parameter Function
P3355[0...2] Super torque boost level
[%]
The magnitude of the Super Torque boost is calculated as follows:
V_ST = P0305 * Rsadj * (P3355/100)
Note:
Rsadj = stator resistance adjusted for temperature
Rsadj = (r0395/100) * (P0304/(sqrt(3) * P0305)) * P0305 * sqrt(3)
Index: See P3350
Dependency: Up to 200% of rated motor current (P0305) or limit of converter.
Note: The Super Torque boost is calculated in the same way as Continuous Boost (P1310). As the stator re-
sistance is used, the calculated voltage is only accurate at 0 Hz. Thereafter, it will vary in the same way as
Continuous Boost.
Setting in P0640 (motor overload factor [%]) limits the boost.
P3356[0...2] Super torque boost time
[s]
Sets the time for which the additional boost will be applied, when the output frequency is held at P3354 Hz.
Index: See P3350
P3357[0...2] Hammer start boost
level [%]
The magnitude of the Hammer Start boost is calculated as follows:
V_HS = P0305 * Rsadj * (P3357/100)
Note:
Rsadj = stator resistance adjusted for temperature
Rsadj = (r0395/100) * (P0304/(sqrt(3) * P0305)) * P0305 * sqrt(3)
Index: See P3350
Dependency: Up to 200% of rated motor current (P0305) or limit of converter.
Note: The Hammer Start boost is calculated in the same way as Continuous Boost (P1310). As the stator re-
sistance is used, the calculated voltage is only accurate at 0Hz. Thereafter, it will vary in the same way as
Continuous Boost.
Setting in P0640 (motor overload factor [%]) limits the boost.
P3358[0...2] Number of hammer
cycles
The number of times the hammer start boost level (P3357) is applied.
Index: See P3350
P3359[0...2] Hammer on time [ms]
Time for which the additional boost is applied for each repetition.
Index: See P3350
Dependency: The time must be at least 3 x motor magnetization time (P0346).
P3360[0...2] Hammer off Time [ms]
Time for which the additional boost is removed for each repetition.
Index: See P3350
Note: During this time, the boost level drops to the level defined by P1310 (continuous boost).
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Range Factory
default
0.0 - 200.0 150.0
0.0 - 20.0 5.0
0.0 - 200.0 150.0
1 - 10 5
0 - 1000 300
0 - 1000 100
Can be Scaling Data
changed set
T PERCEN -
T
T - -
T PERCEN -
T
C, T - -
T - -
T - -
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Data Acc.
type Level
Float 2
Float 2
Float 2
U16 2
U16 2
U16 2