For Operation in the Control Cabinet 3RW Soft Starters © Siemens AG 2009 3RW40 for standard applications As an option the thyristors can also be protected by SITOR semi- conductor fuses from short-circuiting so that the soft starter is still functional after a short-circuit (type of coordination 2). Three LEDs are used to indicate the operating state as well as possible errors, e. g. non-permissible tripping time (CLASS setting), mains or phase failure, missing load, thermal overloading or de- vice faults. • Soft starting with voltage ramp; the starting voltage setting range U s is 40 to 100 % and the ramp time t R can be set from 0 to 20 s.
• Smooth ramp-down with voltage ramp; the running down time t off can be set between 0 s to 20 s. • Solid-state motor overload and intrinsic device protection • Optional thermistor motor protection (up to size S3) • Remote reset (integrated up to size S3, optional for size S6 and larger) • Adjustable current limiting • Integrated bypass contact system to minimize power loss • Setting with potentiometers • Simple mounting and commissioning • Integrated status monitoring and fault monitoring • Mains voltages 50/60 Hz, 200 to 600 V • Various control voltage versions - Sizes S0 to S3: 24 V AC/DC and 110 to 230 V AC/DC - Sizes S6 to S12: 115 V AC and 230 V AC.
Control by way of the internal 24 V DC supply and direct con- trol by means of PLC are possible. • Wide temperature range from -25 to +60 °C • Built-in auxiliary contacts ensure user-friendly control and pos- sible further processing within the system (for status graphs see page 31). Technical specifications 6 1) Factory default: ON mode. 1) Values for the coil power consumption at +10 % U n , 50 Hz. 2) Factory default: ON mode. 6/18 Siemens LV 1 T · 2009 Type 3RW40 2. 3RW40 3., 3RW40 4.
Control electronics Rated values Terminal Rated control supply voltage A1/A2 V • Tolerance % Rated control supply current • STANDBY mA • During pick-up mA • ON without fan mA • ON with fan mA Rated frequency Hz • Tolerance % 24 110 ... 230 24 110 ... 230 ±20 -15/+10 ±20 -15/+10 50/60 ±10 Control inputs IN Rated operational current • AC mA • DC mA ON/OFF Approx. 12 3/6 Approx. 12 3/6 Approx. 12 1.5/3 Approx.
12 1.5/3 Relay outputs Output 1 ON/RUN mode1) 13/14 Output 2 BYPASSED 23/24 Output 3 OVERLOAD/FAILURE 95/96/98 Rated operational current A A Protection against overvoltages Short-circuit protection Operating indication (NO) Bypass indication (NO) Overload/error indication (NC/NO) 3 AC-15/AC-14 at 230 V, 1 DC-13 at 24 V Protection by means of varistor through contact 4 A gL/gG operational class; 6 A quick (fuse is not included in scope of supply) Type 3RW40 5. 3RW40 7 .
Control electronics Rated values Terminal Rated control supply voltage A1/A2 V AC • Tolerance % Rated control supply current STANDBY mA Rated control supply current ON1) mA Rated frequency Hz • Tolerance % 115 230 115 230 -15/+10 -15/+10 15 15 440 200 660 360 50/60 50/60 ±10 ±10 Control inputs IN Rated operational current mA Rated operational voltage V DC ON/OFF Approx. 10 acc. to DIN 19240 24 from internal supply dc+ or external DC supply (acc.
to DIN 19240) through terminals and IN Relay outputs Output 1 ON/RUN mode2) 13/14 Output 2 BYPASSED 23/24 Output 3 OVERLOAD/FAILURE 95/96/98 Rated operational current A A Protection against overvoltages Short-circuit protection Operating indication (NO) Bypass indication (NO) Overload/error indication (NC/NO) 3 AC-15/AC-14 at 230 V, 1 DC-13 at 24 V Protection by means of varistor through contact 4 A gL/gG operational class; 6 A quick (fuse is not included in scope of supply)