Control modes

SINAMICS V90
Pulse train version (PTI)

SINAMICS V90
PROFINET version (PN)

Control modes

• Pulse train input position control (PTI)
• Internal position control (IPos), setpoints selected using a combination of digital inputs, or Modbus/USS
• Speed control (S)
• Torque control (T)
• Compound controls, switches between position control, speed control, and torque control
• Jog using buttons on the integrated operator panel

• Speed control mode: position and speed control in combination with a motion function (TO axis) of SIMATIC S7-1500/S7-1200 and PROFINET

Speed control

Speed input

External analog input or internal speed setpoint

PROFINET or internal speed setpoint

Torque limit

External analog input or set using a parameter

PROFINET or set using a parameter

Pulse train input
position control

Max. pulse frequency

• Differential line driver (5 V), 1 MHz
• Optical coupler (24 V), 200 kHz

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Multiplying factor

Electronic gear ratio (A/B), A:1-65535, B:1-65535, 1/50<A/B<200

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Torque limit

External analog input or set using a parameter

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Torque control mode

Torque input

External analog input or internal torque setpoint

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Speed limit

Prevents speed limits from being violated, set using a parameter for analog input

Set using a parameter

Control features

Real time auto tuning

Estimates the machine characteristic and sets the closed-loop control parameters (gain, integral time, etc.) continuously in real time without any user intervention

Resonance suppression

Suppresses mechanical resonance, such as workpiece and foundation vibration

One-button auto tuning

Estimates the machine load inertia and mechanical characteristics with internal movement command (pre-configured in the SINAMICS V90)

This feature can be initiated using the SINAMICS V-ASSISTANT engineering tool.

Gain switch and PI/P switch

Switches between gains or from PI to P control using an external signal or internal operating conditions

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Torque limit

Limits motor speed using an external analog input or internal torque limit

Motor torque is internally limited

Travel to fixed stop

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Can be used to move an axis to a fixed stop at a specified torque without a signal fault

DI/DO parameterization

Freely assigns the control signals to digital inputs and digital outputs

External braking resistor

An external braking resistor can be used when the internal braking resistor is not capable of handling the regenerative energy.

Measure machine

The machine frequency characteristics are analyzed using SINAMICS V-ASSISTANT

Parameter cloning and Firmware update

• Standard SD card with 400 V version
• Micro SD card with 200 V version

Maximum supported capacity is 32 GB

Safety functions

Safe torque off (STO) via terminal, complies with safety standard SIL 2 according to EN 61508 resp. PL d, Cat 3 according to EN ISO 13849 (activation only via terminals of SINAMICS V90, not supported via PROFINET/PROFIsafe)

Basic Operator Panel (BOP)

Integrated, 6-digit/7-segment display, 5 buttons

Engineering PC tool

• SINAMICS V-ASSISTANT engineering tool exclusively for SINAMICS V90
• SINAMICS V90 in combination with S7-1500 and STEP 7 Professional engineering via TIA Portal V14 possible.