Soft starters for three - phase motors 3 × 400 V in the power range from 3 to 500 kW
SINAM 400 soft starters pose an attractive solution to acceleration and deceleration regulation of induction motors by the change of amplitude of output voltage. With the use of phase control, the voltage applied to the motor terminals is continuously increased and thereby continuous motor acceleration is ensured. Furthermore, resulting from phase control and continuous decrease in terminal voltage after drive's stop command, smooth drive deceleration is ensured. Since the soft starters include microprocessor DSP control, almost linear starting up and running down of a motor can be attained resulting from motor torque modeling. Firstly, the torque is modeled by measuring values of current, voltage and motor power factor, and secondly, on required values of torque increase (decrease).
The connection of a soft starter can be freely adapted to customer needs. The user can choose a standard soft starter connection in series (power supply - soft starter - motor) with the line voltage applied to the motor or a DELTA connection, where soft starter is connected inside the delta loop of a delta connected motor, controlling the voltage applied to each winding. Where the optional accessory - cooling unit - is used, bypass contactor is not required. As a result of soft starter's internal measurements of motor current in each connection, motor temperature protection is not needed.

Contents:

SINAM 400 Examples of applications:
Electrical ADVANTAGES:
Mechanical ADVANTAGES:
Standard equipment
Optional accessories
Technical data
General technical data
User guide
Technical drawings
Library for ELCAD

Examples of applications:

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Mechanical ADVANTAGES:

(resulting from the use of soft starters for IM start-up control) Up

Electrical ADVANTAGES:

(resulting from the use of soft starters for IM start-up control)Up

Standard equipment

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Optional accessories

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Technical data

Soft starter type Nominal current (A) Standard connection in series DELTA connection Dimensions
Standard application with standard load factor - Fans and pumps Severe application with high load factor - Grinders, mills, conveyors, ski lifts Standard application with standard load factor - Fans and pumps Severe application with high load factor - Grinders, mills, conveyors, ski lifts
Motor power (kW) Motor power (kW) Motor power (kW) Motor power (kW) height [mm] width[mm] depth [mm]
SINAM 400/9 9 4 3 5,5 4 295 165 175
SINAM 400/12 12 5,5 4 7,5 5,5 295 165 175
SINAM 400/17 17 7,5 5,5 11 7,5 295 165 175
SINAM 400/23 23 11 7,5 18,5 11 295 165 175
SINAM 400/32 32 15 11 22 18,5 295 165 175
SINAM 400/44 44 22 15 37 22 295 165 175
SINAM 400/60 60 30 22 45 37 350 165 175
SINAM 400/74 74 37 30 55 45 350 165 175
SINAM 400/91 91 45 37 75 55 350 165 175
SINAM 400/112 112 55 45 90 75 415 310 250
SINAM 400/145 145 75 55 110 90 415 310 250
SINAM 400/191 191 100 75 160 110 415 310 250
SINAM 400/252 252 132 100 200 160 685 400 285
SINAM 400/310 310 160 132 250 200 685 400 285
SINAM 400/380 380 200 160 315 250 685 400 285
SINAM 400/480 480 250 200 400 315 685 400 285
SINAM 400/598 598 315 250 500 400 685 400 285
If you require a converter of similar type, but out of range shown in the table, please contact our sales department.

General technical data

Input voltage: 400 V -15% to +10%
Input frequency: 50 Hz ± 1 %
Softstarter efficiency: < 0,975 at acceleration, if by - passed by a contactor> 0.99
Output voltage range: 0 to input voltage
Control system: 32 bit. DSP
Analogue inputs: 0 ÷ 20 mA (250 Ω), 4 ÷ 20 mA (250 Ω), 0 ÷ 10 V, 2 ÷ 10 V, potentiometer, motor potentiometer; output voltage + 10 V (short circuit protection), max. 10 mA. Potentiometer 1 kΟ to 10 kΟ
Control inputs and interface: 4 binary inputs for multi-level speed selection, or for remote motor potentiometer, reset, voltage +24 V (short circuit protection) on 1:X1 load capacity max. 100 mA
Analogue outputs: 0 ÷ 20 mA, 4 ÷ 20 mA max. 750 W - for converter's output voltage (output current) indication
Current limit: it is software adjustable in the range 50 ÷ 550 % of motor current
Current limit of the softstarter: 5 x In, In = nominal current of softstarter
Ramp up time: two sections of ramp-up - increasing of output voltage, each section is adjustable in the time range 1 ÷ 300 s
Ramp down time:two sections of ramp-down - decreasing of output voltage, each section is adjustable in the time range 1 ÷ 300 s
Electronic protection against: overcurrent, overvoltage, undervoltage, converter overheating, motor overheating
Cooling:by ambient air, OPTION ACCESSORY - ventilating unit
Installation altitude:< 1000 m above sea level, each 100 m above 1000 m above sea level causes decrease in converter's power by 1 %
Relative air humidity: < 90 % non-condensing, dewing not permissible
Permissible ambient temperature during operation: + 1 °C to + 40 °C
Permissible ambient storage temperature: - 25 °C to + 50 °C
Acceptable vibrations: 0,7 g ( 10 Hz ÷ 100 Hz )
Degree of protection: SINAM 400/9 - 191 IP 20
SINAM 400/252 - 598 IP 00
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