Electrical Specifications - Siemens SIKOSTART 3RW34 Instructions De Service

Start Time T1. During setup procedures, T1 was set to a mid range acceleration ramp time. If the soft starter ramp
ends before the motor reaches full speed, turn RUN signal off and increase the T1 setting. Repeat trial starts to
achieve a smooth acceleration to full speed (LED 2 changes from single blinking mode to continuously on) before the
T1 time elapses.
Stop Time T2. For most applications, the motor load will coast to rest; T2 setting equals 0.
A soft stop is required for some applications, e.g. to reduce water hammer in a pumping system. For a soft stop,
most applications require the stop time T2 to be equal to or longer than the start time T1. Turn RUN signal off before
changing the T2 setting.
Initial Voltage
(0 is minimum, F is maximum)
Fig. 22 : Potentiometer Settings
Record the final potentiometer settings in the blank spaces above.
8

Electrical Specifications

Main Voltage Required
Control Voltage Required
AC Frequency & Phase Temperature
Range
Permissible Altitude
Overcurrent Protection
Adjustment Ranges - 16 settings each:
Start Time (Accel. Ramp)
Stop Time (Decel. Ramp)
Initial Voltage
Number of starts per hour and
starting time in standard connection
at Ta = 40 °C, duty cycle = 30 % and
Ie = 300 %
3ZX1012-0RW34-1AN1
Start Time
(0 is minimum, F is maximum)
In Line Application: 200 to 460 V AC or 400 to 600 V AC
+10 %, -15 % (specified by order number)
Inside Delta Application: 200 to 400 V AC or 400 to 600 V AC
+10 %, -15 % (specified by order number)
24 V DC, 115 V AC or 230 V AC +10 %, -15 % (specified by order number)
Control power requirements are listed below (Table 6).
50/60 Hz, ± 10 %
0° to 60 °C inside enclosure in which unit is mounted.
Derating from 40 °C see Table 10 to 13 (page 26 to 28).
1000 m at rated output
2000 m at 0.87 *I
e
3000 m at 0.77 *I
e
The standard SIKOSTART Soft Starter is not equipped with overload protection.
The user must provide overload protection.
0.5 to 60 seconds*
0.5 to 60 seconds
30 % to 80 % of nominal voltage (approximately 10 % to 64 % of the normal starting torque)
* The motor acceleration time should be shorter than the set starting time and is dependent on the
friction and inertia characteristics of the load or system.
Order Number Ie in A
3RW34 52
3RW34 54
3RW34 55
3RW34 56
3RW34 57 110
3RW34 58 135
3RW34 65 162
3RW34 66 195
3RW34 67 235
3RW34 68 352
3RW34 83 500
3RW34 84 700
3RW34 86 1050
To determine the unit best suited to your application, we recommend using Win-Sikostart
(Order No. E20001-D1020-P302-X-7400)
Stop Time
(0 is minimum, F is maximum)
Starting time in s
35 30
57 30
70 30
80 30
30
20
30
30
30
30
30
30
20
Electrical Specifications
Starts per hour
7
7
11
9
11
8
11
11
11
11
11
5
6
23