• Siemens Soft Starter Wiring Diagram

. Manual Industrial Controls Soft Starters 3RW44 Edition 03/2017 siemens.com/industrial-controls. Introduction Industrial Controls Configuration instructions Installation, connection and feeder configuration Soft starters and solid-state switching devices Display, controls and device 3RW44 soft starters interfaces Commissioning Manual Device functions Diagnostics and messages PROFIBUS DP. Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation.

If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. 12 2.1.1 Three-phase asynchronous motor.12 2.1.2 Principle of operation of the 3RW44 electronic soft starter. 14 Application and use. 17 Marginal conditions for storage and operation. 19 Configuration instructions.20 Configuration.

6.1.2 Changing parameters: for example motor data.49 Switching on for the first time.50 6.2.1 Recommended procedure for commissioning 3RW44.50 6.2.2 Quick start menu, when switching on for the first time.51 6.2.3 Problems that can occur.53 6.2.4. PROFIBUS DP commissioning using the GSD file in STEP 7 (example).164 9.6.1 Introduction. 164 9.6.2 Configuration using the Device Master Data (GSD) in STEP 7. 165 9.6.3 Integration into the user program.168 9.6.4 Switching on. 168 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3RW44 in a standard circuit with control via keys.216 10.1.2 3RW44 in a standard circuit with line contactor and control via PLC.218 10.1.3 3RW44 in a standard circuit and DC braking stopping function for device types 3RW44 22 to 3RW44 25. 10.1.18 Soft starter with direct-on-line starting (DOL) as emergency start.240 10.1.19 Soft starter with star-delta starter as emergency start (3RW44 in a standard circuit).241 10.1.20 Soft starter and frequency converter on one motor.

242 General technical data. Product Information.

Definitions Where the short form 3RW44 is used in the text, it refers to the SIRIUS 3RW44 soft starter. Standards and approvals The SIRIUS 3RW44 soft starter is based on IEC/EN 60947-4-2. The manufacturer of the system or machine is responsible for ensuring the correct overall functioning. SIEMENS AG, its regional offices, and associated companies (hereinafter referred to as 'SIEMENS') cannot guarantee all the properties of a system or machine not designed by SIEMENS. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial security concept. Siemens’ products and solutions only form one element of such a concept.

Customer is responsible to prevent unauthorized access to its plants, systems, machines and networks. Depending on (startup) the motor version it can amount to between three times and fifteen times the rated operational current. Seven to eight times the rated motor current can be taken as a typical value. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. For the load machine this means that the starting and acceleration forces in relation to rated operation give rise to a higher mechanical load on the machine and the conveyed material. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 2.1.2 Principle of operation of the 3RW44 electronic soft starter The 3RW44 soft starter features two antiparallel thyristors in each of the phases.

For SIRIUS Soft Starter 3RW44 Manual. Operating instructions 'PROFINET Communication Module for Soft Starter 3RW44'. SIEMENS AG, its regional offices.

There is one thyristor for the positive and one thyristor for the negative half-wave. The rms value of the motor voltage is increased (from an adjustable starting voltage or starting torque) to the rated motor voltage within a definable starting time by means of the leading-edge phase. The diagrams below show the starting current and torque characteristics for a three-phase asynchronous motor in combination with a soft starter: Figure 2-3 Reduced current characteristic of a three-phase asynchronous motor during startup with a SIRIUS 3RW44 soft starter 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 2.1 Basic physical principles of the three-phase asynchronous motor and operating principle of the soft starter Figure 2-4 Reduced torque characteristic of a three-phase asynchronous motor during startup with a SIRIUS 3RW44 soft starter Startup This means that, since the motor voltage is controlled by the electronic soft starter during the startup process, the consumed starting current and the starting torque generated in the motor are also controlled.

Phase angle control and schematic diagram of a soft starter with internal bypass contacts Application and use Applications and selection criteria 3RW44 soft starters can be used as an alternative to star-delta (wye-delta) starters and frequency converters. Their main benefits are their ability to perform soft starting, soft stops, and uninterrupted changeover without current peaks that put a strain on the system, as well as their compact dimensions.

● Smooth braking Rotary pumps, piston pumps: ● No pressure surges ● Increased service life of the pipe system Agitators, mixers: ● Reduced starting current Fans: ● Reduced stress on gearbox and V belt 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 95% Permissible maximum installation altitude 5000 m, from 1000 m with derating NOTICE Risk of property damage. Make sure no liquids, dust, or conductive objects can get inside the soft starter. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Configuration instructions Configuration The 3RW44 electronic soft starters are designed for normal starting. In case of heavy starting or increased starting frequency, a larger unit may have to be selected. For long starting times it is recommended to have a PTC sensor in the motor. (Page 259).

If deviations from this data occurs, the starters may need to be overdimensioned. Selection criteria Note You must select the size of your SIRIUS 3RW44 soft starters according to the rated motor current (rated current ≥ rated motor current). Soft starter. Breakaway Deactivated Deactivated Deactivated Deactivated Deactivated Deactivated pulse (0 ms) (0 ms) (0 ms) (0 ms) (0 ms) (0 ms) Coasting Soft stop Soft stop Coasting down Coasting down Pump stop Coasting down method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Torque ramp Starting torque. End torque.

Starting time. Breakaway pulse Deactivated (0 ms) Deactivated (0 ms) Deactivated (0 ms) Coasting method Coasting down Coasting down Coasting down or DC braking 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. The settings and device dimensions indicated in these tables are examples only; they are merely provided for information purposes and are not binding. Set values depend on the application in question and must be optimized during commissioning. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3.3 ON time and switching frequency ON time and switching frequency Based on the rated motor current and the startup class, the 3RW44 soft starters are dimensioned for a maximum permissible switching frequency in combination with a relative ON time.

See also Chapter Technical data of the power unit (Page 259). A larger soft starter may have to be selected if these values are exceeded.

Reduction as a function of the installation altitude Ambient temperature 3RW44 soft starters are designed for operation with rated current at an ambient temperature of 40 °C. If this temperature is exceeded, e.g. Owing to an impermissible temperature rise in.

Factory settings Reset to the factory settings (default) ● if parameter settings are incorrect ● if continued use is to be made of already parameterized SIRIUS 3RW44 soft starters in other systems. Note Otherwise, drives could break away in certain circumstances due to existing parameter assignments. Configuration instructions 3.6 Article number system for SIRIUS 3RW44 soft starters Article number system for SIRIUS 3RW44 soft starters 3RW4. VIII. Fields are not configurable I Identifier of the basic unit AC semiconductor motor control device (soft starter) II Device version: 4 High-End soft starter.

Do not lift the device by the cover when unpacking it as this could lead to damage. 4.1.2 Mounting position The soft starter is mounted vertically on vertical, level surfaces. Figure 4-1 Mounting position 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Note Coated circuit boards All 3RW44 soft starters with a production date G/150206 onwards are equipped as standard with coated printed circuit boards to improve protection of the device against tough ambient conditions such as dust, moisture or other harmful influences.

Figure 4-2 Clearance to other devices NOTICE Allow sufficient clearances for the cooling air to circulate freely. The device is ventilated from bottom to top. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

(For details of fuse and circuit breaker assignment, refer to chapter Feeder component layout (standard circuit) (Page 270) and chapter Feeder component layout (inside-delta circuit) (Page 275). 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Installation, connection and feeder configuration 4.2 Design of the feeder Contact element The 3RW44 soft starter performs the functions of the contact element and motor protection. DANGER Hazardous voltage. Danger to life or risk of serious injury. If line voltage is present at the input terminals of the soft starter, hazardous voltage may still be present at the soft starter output even if a start command has not been issued. 100 ms of activation of the start command for the 3RW44.

If the contactor is not connected within 100 ms of activation of the start command for the 3RW44, the soft starter no longer recognizes the current circuit variant (standard circuit or inside-delta circuit). Figure 4-4 Nameplate of a 22 kW motor The SIRIUS 3RW44 soft starter can be dimensioned to match the current flowing in the motor section (58% of the conductor current) by connecting it to the delta winding of the motor. Installation, connection and feeder configuration 4.2 Design of the feeder The 3RW44 soft starter automatically detects how it is connected, meaning that the connection type does not have to be explicitly set on the device. The detected connection type can be read on the starter in the 'Status display/Type of connection' menu item. In this case, the display reads 'Inside-delta circuit'.

100 ms of activation of the start command for the 3RW44. If the contactor is not connected within 100 ms of activation of the start command for the 3RW44, the soft starter no longer recognizes the current circuit variant (standard circuit or inside-delta circuit). 100 ms of activation of the start command for the 3RW44. If the contactor is not connected within 100 ms of activation of the start command for the 3RW44, the soft starter no longer recognizes the current circuit variant (standard circuit or inside-delta circuit).

1 s for the main contactor or control the main contactor via an output with parameterized 'ON time' function as described in chapter 3RW44 in a standard circuit with line contactor and control via PLC (Page 218). Special semiconductor fuses, e.g. SITOR fuses from SIEMENS, must be used for this purpose.

This internal thyristor protection function is not sufficient, however, in the event of a defect in the motor windings or a short-circuit in the motor's power supply cable, for example. Special semiconductor fuses, e.g. SITOR fuses from SIEMENS, must be used for this purpose. Connecting the generator directly in the supersynchronous range may cause soft starter faults. Electrical connection 4.6.1 Control and auxiliary circuit connection The SIRIUS 3RW44 soft starter is supplied with two different connection systems: ● Screw connections ● Spring-loaded connections Two control voltage versions are available: ● 115 V AC ●. Installation, connection and feeder configuration 4.6 Electrical connection Sizes 3RW44 3. For size 3RW44 3.

Devices, it is possible to retrofit box terminals as optional accessories (see chapter Accessories (Page 277)). Figure 4-8 Connections. 1 x 0.54.0 mm 2 x 0.251.5 mm 2 x 0.52.5 mm 2 x 0.51.5 mm 2 x 0.251.5 mm 1 x 0.52.5 mm 2 x 0.251.5 mm 2 x 20.14 2 x 24.16 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Installation, connection and feeder configuration 4.6 Electrical connection L1, L2, L3; T1, T2, T3 3RW44 2. 46 Nm M8x25 1014 Nm M10x30 1424 Nm M12x40 2035 Nm 3653 lb.in 89124 lb.in 124210 lb.in. Display with keys Customer read No motor only Serial interface Customer write Startup Control inputs Motor is running PLC via PROFIBUS/ Run down PROFINET PC via bus Motor ready to start No control device 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

After switching on, the SIRIUS 3RW44 soft starter automatically recognizes that the external display and control module has been connected. The 3RW44 display will be inverted and the display and control module's display will be shown normally. Commissioning Menu structure, navigation, changing parameters The 3RW44 functions (parameterization, diagnostics and motor control) can be executed using the four control keys. The menu has various sub-levels, which must be handled in different ways but are self-explanatory. 6.1.1 Menu structure and navigation. Commissioning 6.1 Menu structure, navigation, changing parameters 6.1.2 Changing parameters: for example motor data Changing values, e.g. Adjusting motor data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Before switching the device on for the first time, verify that the main/control side is wired properly. Make sure that the line and control voltages comply with the device-specific requirements (refer to chapter Technical data (Page 253)). 6.2.1 Recommended procedure for commissioning 3RW44 Suggested Startup parameters Stopping parameters. Commissioning 6.2 Switching on for the first time 6.2.2 Quick start menu, when switching on for the first time Quick commissioning of the soft starter 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.2 Switching on for the first time 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.2 Switching on for the first time 6.2.3 Problems that can occur The motor does not directly start smoothly 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.2 Switching on for the first time The motor does not swiftly reach its nominal rotational speed in the desired time 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.2 Switching on for the first time The motor does not reach zero speed as desired 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. (refer to 'Restoring the factory settings' in chapter Saving options (Page 102)). This overwrites all settings made up to that point.

3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.3 User-specific commissioning Quick Start menu 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

If values are required that differ from the defined parameters in the Quick Start menu or in the factory settings of the 3RW44, please proceed as follows: Under the 'Settings' menu item, select (refer to chapter Settings main menu item (Page 59)). Commissioning 6.3 User-specific commissioning 6.3.1 Settings main menu item Settings main menu item 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set Making settings in the selected parameter set 6.4.1 Selecting the parameter set Selecting the parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.2 Entering the motor data Entering the motor data and nameplate 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

For testing purposes), this rated data must be adapted to the new motor. If 0 Nm is entered as the rated torque, the value is automatically calculated once by the soft starter. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 6.4.3 Specifying the startup mode Specifying the startup mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Voltage ramp' startup mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 'Voltage ramp with current limiting' startup mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 'Torque control' startup mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. The parameter value should be set to approx. 150% to start the motor. It should be high enough to ensure that the motor does not become stuck during run-up. This ensures that enough acceleration torque is generated throughout the motor run-up phase.

3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Torque control with current limiting' startup mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Direct on-line starting' mode 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. The 'Motor heating' startup mode is not a continuous operating mode.

The motor must be equipped with a temperature sensor (Thermoclick/PTC) to ensure motor protection. The motor model with integrated electronic motor overload protection is not suitable for this kind of operation. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.4 Specifying the coasting method Specifying the coasting method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Coasting down' coasting method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Torque control' coasting method (soft stop) 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'Pump stop' coasting method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 'DC braking' coasting method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Note If the 'DC braking' function is selected, the 'DC braking contactor' function must be assigned to one output of the soft starter. This output must be used to control an external braking contactor. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 'Combined braking' coasting method 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set NOTICE The DC braking/combined braking stopping function is not possible in inside-delta circuits. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.5 Setting slow speed parameters Setting slow speed parameters 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

'Motor CW PS1/2/3' or 'Motor CCW PS1/2/3' function must at the same time be assigned to the other. See also Chapter 3RW44 in a standard circuit with soft start/stop and additional slow speed function in both directions of rotation with one parameter set (Page 224). Commissioning 6.4 Making settings in the selected parameter set 6.4.6 Specifying current limit values Specifying current limit values 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.7 Parameterizing the inputs Parameterizing the inputs 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

NOTICE If the soft starter is switched off via a motor protection or inherent device protection tripping, the action cannot be acknowledged using the 'Trip Reset' function until the displayed cooling time has expired. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

The 'Trip Reset' input is edge-controlled. The level change from 0 to 24 V DC is evaluated at the input. All other input functions are evaluated at the already pending 24 V DC level. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.8 Parameterizing the outputs Parameterizing the outputs 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. State diagram of the outputs Note For possible group warnings/group faults, see chapter Warnings and group faults (Page 141). Note For switching delay times of the output functions, see chapter Technical data of the control section (Page 264).

3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.9 Selecting motor protection settings Selecting motor protection settings 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. The 3RW44 does not have ATEX certification. When an ATEX-certified overload relay is used (e.g. 3RB2 from Siemens) that affects an additional switching element (e.g.

Contactor), the 3RW44 can be installed in series with this overload relay, meaning that the ATEX requirements are met. Commissioning 6.4 Making settings in the selected parameter set 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.10 Selecting display settings Selecting display settings 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.11 Specifying the behavior of the protective functions Specifying the behavior of the protective functions 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set Note.

The ground fault function is only active after completion of run-up, not during startup. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set 6.4.12 Specifying the names on the device display Specifying the names on the device display 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. GSD file or in the OM when the bus is started. If this is not desired, the parameter must be set to 'On'. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set 6.4.14 Saving options Specifying the saving options 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. As long as the connected drive is controlled by the soft starter, no parameter changes carried out at the same time can be saved by means of the 'Saving options' menu item. This is only possible after the motor has been shut off by the soft starter. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Commissioning 6.4 Making settings in the selected parameter set Saving settings 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.4 Making settings in the selected parameter set Restoring settings Selected settings that have not been saved will be discarded and the previously saved settings will be restored. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Restoring the factory settings All settings made or saved so far will be discarded and the device will be reset to the basic factory settings (master reset). The quick start menu must be executed once again. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Commissioning 6.5 Other device functions Other device functions 6.5.1 Measured values display 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 6.5 Other device functions Note When using the 3RW44 soft starter in an IT system with ground fault monitoring: 3RW44, product version 1000) Customer write (1000) 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

The following information applies to modules transported and stored in the original packaging. Type of condition Permissible range Temperature -25°C to +80°C Atmospheric pressure 700 to 1060 hPa Relative humidity 10 to 95% 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

3RW44 24-x 3RW44 25-x 3RW44 26-x 3RW44 27-x 400. 690 29 18.5 3RW44 22-x 18.5 3RW44 23-x 3RW44 24-x 3RW44 25-x 3RW44 26-x 3RW44 27-x 1 = screw-type terminals, 3 = spring-loaded terminals 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3RW44 55-x 3RW44 56-x 3RW44 57-x 3RW44 58-x 1076 1100 3RW44 65-x 1214 1076 1200 3RW44 66-x 2 = screw-type terminals, 6 = spring-loaded terminals 3 = 115 V AC, 4 = 230 V AC 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3RW44 57-x 1000 3RW44 58-x 1076 1100 1100 3RW44 65-x 1214 1200 1076 1200 3RW44 66-x 2 = screw-type terminals, 6 = spring-loaded terminals 3 = 115 V AC, 4 = 230 V AC 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3RW44 23-x 3RW44 24-x 3RW44 25-x 3RW44 26-x 3RW44 27-x 400. 600 50 3RW44 22-x 3RW44 23-x 3RW44 24-x 3RW44 25-x 3RW44 26-x 3RW44 27-x 1 = screw-type terminals, 3 = spring-loaded terminals 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 1864 1100 1350 1680 1500 1900 3RW44 65-x 2103 1200 1500 1864 1700 2100 3RW44 66-x 2 = screw-type terminals, 6 = spring-loaded terminals 3 = 115 V AC, 4 = 230 V AC 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

For dimensioning soft starters under other supplementary conditions, also for heavy starting up to CLASS 30, we recommend our Simulation Tool for Soft Starters (STS): or our Technical Assistance: Tel.: +49 (0) 911-895-5900, e-mail: technical-assistance@siemens.com 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 11.3.2 Technical data of the power unit 3RW44.BC.4 3RW44.BC.5 3RW44.BC.6 Rated insulation voltage U 460 V 600 V 690 V Rate impulse voltage U 6 kV 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

General technical data 11.3 Technical data 11.3.3 Technical data of the control section 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Response value 3.4 kOhm to 3.8 kOhm Return value 1.5 kOhm - 1.65 kOhm Cable lengths (single), conductor cross sections: Cross section: Length: 2.5 mm 250 m 1.5 mm 150 m 0.5 mm 50 m 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 11.3.4 Conductor cross-sections 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 3RA1 fuseless load feeder can resume operation without feeders, the circuit breaker itself always achieves type 2 needing to be renewed. At most, welding of the contactor coordination.

Contacts is permissible if they can be disconnected easily without any significant deformation. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Normally, fuseless mounting (combination of motor starter protector and soft starter) is sufficient. If type of coordination 2 is to be fulfilled, semiconductor fuses must be fitted in the motor feeder. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Feeder component layout (inside-delta circuit) Note If the F3 semiconductor fuse is not used, the type of coordination '2' is reduced to type of coordination '1' for soft starters in combination with the stipulated protective device. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

General technical data 11.3 Technical data 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Optional accessories USB PC cable 3UF7941-0AA00-0 For connecting to the USB interface of a PC/PG, for communication with Soft Starter ES through the system interface 3UF7941-0AA00-0 Optional communication module for SIRIUS 3RW44 3RW4900-0KC00 PROFIBUS. 3RW4900-0NC00 PROFINET.

3RW44 soft starters. IP54 degree of protection (e.g. In the control cabinet door) 3RW4900-0AC00 Connecting cable From the device interface (serial) of the 3RW44 soft starter to the external display and operator module Length 0.5 m, flat 3UF7932-0AA00-0 Length 0.5 m, round. Also fits on mounted box 3RT1966-4EA1 terminals SIRIUS 3RW44 Soft Starter Manual The SIRIUS 3RW44 Soft Starter Manual (/21772518) is available at the Industry Online Support portal as a free PDF download. The SIRIUS 3RW442/443/444/445/446 soft starter operating instructions ((article number 3ZX1012. General technical data 11.3 Technical data 11.3.9 Spare parts Note 3RW4422 and 3RW4423 The 3RW4422 and 3RW4423 soft starters do not need fans.

These devices are adequately designed for natural convection. 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.4 Tripping characteristics 11.4 Tripping characteristics 11.4.1 Motor protection tripping characteristics: 3RW44 with symmetry 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.4 Tripping characteristics 11.4.2 Motor protection tripping characteristics: 3RW44 with asymmetry 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.5 Dimension drawings 11.5 Dimension drawings 11.5.1 Dimension drawings Figure 11-1 3RW44 2, 3RW44 3, 3RW44 4 3RW44 2 3RW44 3 3RW44 4 180 mm (7.09 in) 180 mm (7.09 in) 210 mm (8.27 in) 170 mm (6.69 in) 170 mm (6.69 in).

General technical data 11.5 Dimension drawings Figure 11-2 3RW44 5/3RW44 6 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 249 mm (9.8 in) 249 mm (9.8 in) 162 mm (6.4 in) 162 mm (6.4 in) 152 mm (5.9 in) 151.4 mm (5.96 in) 123 mm (4.84 in) 290 mm 290 mm Weight 50.0 kg 78.0 kg 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. 173 mm (6.9 in) 173 mm (6.8 in) 195 mm (7.7 in) 118 mm (4.6 in) 118 mm (4.65 in) 261 mm (10.2 in) 261 mm (10.28 in) 290 mm (11.5 in) 290 mm (11.42 in) 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. General technical data 11.5 Dimension drawings Figure 11-4 External display and operator module 3RW49 00-0AC00 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Appendix Configuration data Siemens AG Technical Support Low-Voltage Control Systems Tel.: +49 (0) 911-895-5900 Fax: +49 (0) 911-895-5907 E-mail: technical-assistance@siemens.com 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Rated torque or rated output Nm or kW Mass moment of inertia (load-specific) kg.m Mass moment of inertia (motor-specific) kg.m Speed/torque characteristic curve (The speed increments of the value pairs do not have to be equal) 'n ' 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Acceleration torque limitation? ❑.Maximum starting time? Personal details Last name, first name.Company.Department. Zip code, town/city. Country.Phone.Fax.E-mail.3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008. Degree of protection, 30 Parameter sets, 119 Diagnostics, 140 PC Interface, 20 Disconnector, 32 Phase failure, 142 Dynamic braking torque, 131 PLC, 32, 146, 146, 183, 187, 187, 198 Prewarning limit, 137 Profibus, 47 3RW44 soft starters Manual, 03/2017, NEB00/RS-AB/008.

Selection criteria, 17 Semiconductor fuse, 40, 139 SITOR, 40, 139 SITOR fuses, 40 SITOR semiconductor fuse, 139 Size 3RW44 2., 42 3RW44 3., 43 3RW44 4., 43 Slow speed factor, 134 Slow speed torque, 134 Software, 20, 47 Spring-loaded connections, 42.

SIRIUS 3RW soft starters are a cost-effective alternative to using direct or wye-delta starters for starting three-phase motors. They avoid undesirable side effects such as mechanical bumps in the machine and mechanics or voltage drops in the mains supply. The soft start in control cabinets can be implemented in almost any application in a simple and practical way with our complete soft starter range.

Advantages at a glance. Soft start and soft stop. Smooth starting, without steps. Reduced current peaks. Avoidance of line voltage fluctuations during start-up. Reduced load on the power supply system. Reduced mechanical load in the drive.

Considerable space savings and reduced wiring compared to other starters. Maintenance-free switching.

Siemens Soft Starter Wiring Diagram

Ease of handling. Perfectly matched with SIRIUS devices for the control cabinet.