Power unit

• Complies with EMC guidelines defined in EN 61800‑3 thanks to line filter which is integrated as standard (with grounded supply system)
  
  • Category C2 for compact units in TN/TT system of the first environment (residential area), category C1 available as an option
  • Category C3 for cabinet units (TN/TT system) of the second environment (industrial area)
  • Category C4 for compact and cabinet units in IT system of the second environment (industrial area)
• SINAMICS G180 converters cause minor line harmonics: Thanks to line reactors integrated in cabinet units and DC reactors integrated in compact units
• Output filter to permit the use of long motor cables for motors with standard insulation
• Insulation monitoring for IT systems integrated in 500/690 V units and ground fault monitoring for TN and TT systems integrated in 400 V units
• Wide range of input voltages
• Lower additional motor noise emissions of typically 3 dB(A) as well as minor losses in converter and motor thanks to optimized pulse pattern and converter clock frequency
• Units can be protected by standard fuses (gL characteristic)
• Standardized user interface on units rated from 2.2 to 6 600 kW

Control section

• High level of protection for personnel and plant is provided by protective separation of the safety extra-low voltage in accordance with IEC/EN 61800‑5‑1 at the analog and digital control inputs and outputs of the power unit.

Operation and settings

• Straightforward to operate and set by means of a menu-assisted, 4-line plaintext display with membrane keyboard on the converter unit or remotely from the control room via an RS485 link at a distance of up to 1000 m
• Extensive range of functions using a Windows-based PC operating program

Explosion protection

• ATEX-certified tripping concept in accordance with Directive 94/9 EC for the safe operation of motors in hazardous zones 1 and 2, which means that no main contactor is required

Safe Torque Off

Available with options G04, G05, G08

• Shutdown mechanism to prevent unexpected starting. Category 0 stop function in accordance with EN 60204‑1 (stop by disconnection of power supply to the machine).
• Functional safety in accordance with:
  
  • SIL 2 as per EN 61508
  • Category 3 to EN ISO 13849‑1
  • Performance Level (PL) d to EN ISO 13849‑1
• Functional safety in accordance with IEC 61508: SIL 3 is possible in conjunction with options S01+Y11 or S02+Y11.

Communication

• Communication via conventional terminal strip with freely programmable digital and analog inputs/outputs with
  
  • parameterizable limit value signals
  • parameterizable timers
  • parameterizable attenuators
  • parameterizable converter behavior when inputs/outputs respond
  • parameterizable logic elements
• Communication and parameterization by means of
  
  • PC using IMS (Inverter Management Software) via USB interface
  • External operator panel via RS485 link
  • Bus systems such as Ethernet
    (PROFIBUS with Ethernet-to-PROFIBUS converter board), PROFIBUS DP, CANopen, Modbus RTU or Modbus TCP

Drive behavior

• Closed-loop control of synchronous and induction motors
• Two control modes for induction motors:
  
  • Space vector control for standard applications (without feedback)
  • Field-oriented closed-loop control for dynamic requirements
• Optimum braking without any supplementary equipment by means of oversaturation control system. With approximately 10 % braking torque at high speed range and up to 50 % at low to medium speed range.

General

• Automatic slip compensation
• Stall protection provided by current limitation control
• Flying restart function for connection to rotating motor
• Automatic adjustment of the overload times
• Parameterizable DC braking for precise deceleration down to zero speed
• Torque control
• Automatic restart (Auto Restart)
• Voltage and current control systems
  (AC as well as DC with variable frequency)
• Mains supply backup is possible
• Integrated process controller for basic, higher-level closed-loop control tasks
• Optionally available integrated braking chopper for increased braking torque
• Operation of groups of units with interconnected DC links is possible