Commissioning Advanced Functions; Starting The Motor In Super Torque Mode - Siemens SINAMICS V20 Operating Instructions Manual

5.6.3

Commissioning advanced functions

5.6.3.1

Starting the motor in super torque mode

Functionality
This startup mode applies a torque pulse for a given time to help start the motor.
Typical application field
Sticky pumps
Setting parameters
Parameter Function
P3350[0...2] Super torque modes
P3351[0...2] BI: Super torque enable
P3352[0...2] Super torque startup mode
P3353[0...2] Super torque ramp time [s]
P3354[0...2] Super torque frequency [Hz]
P3355[0...2] Super torque boost level [%]
P3356[0...2] Super torque boost time [s]
SINAMICS V20 Inverter
Operating Instructions, 09/2014, A5E34559884
Setting
= 1: Enable super torque mode
Note: When the value of P3350 is changed, the value of P3353
is changed as follows:
P3350 = 2: P3353 = 0.0s
•
P3350 ≠ 2: P3353 = default
•
The ramp time of 0s gives an additional 'kicking' effect when
hammer start is in use.
This parameter defines the source of the super torque enable.
The setting is effective when P3352 = 2.
Factory default: 0 (never enabled)
This parameter defines when the super torque function be-
comes active.
= 0: Enabled on first run after power-up
= 1: Enabled on every run
= 2: Enabled by digital input (enable source is defined by
P3351; 0 = never enabled, 1 = enabled on every run)
This parameter defines the ramp time to be used when ramping
up to the super torque frequency.
Range: 0.0 to 650.0 (factory default: 5.0)
This parameter defines the frequency at which the additional
boost is applied for super torque mode.
Range: 0.0 to 550.0 (factory default: 5.0)
This parameter sets the temporary boost level for super torque
mode.
It applies boost in [%] relative to P0305 (rated motor current)
once the super torque frequency has been reached for the time
specified in P3356.
Range: 0.0 to 200.0 (factory default: 150.0)
This parameter sets the time for which the additional boost is
applied, when the output frequency is held at P3354.
Range: 0.0 to 20.0 (factory default: 5.0)
Commissioning
5.6 Function commissioning
107