Motor Controllers AC Semiconductor Motor Controller Types RSE 22 .. - B, RSE 4. .. - B, RSE 60 .. - B • Soft starting and stopping of 3-phase squirrel cage motors • Rated operational voltage: Up to 600 VACrms, 50/60 Hz • Rated operational current: 3 A or 12 AAC 53 b • Potential-free control input • LED-indications for supply and operation • Transient overvoltage protection built-in • Integral bypassing of semiconductors Product Description Ordering Key stopped. Starting and stopping time as well as initial torque can be independently adjusted by built-in potentiometers. Solid State Relay Motor controller E-line housing Rated operational voltage Rated operational current Control voltage Type Rated operational voltage Ue Rated operational current Ie RSE: E-series, motor controller 22: 127/220 VACrms, 50/60 Hz 03: 3 A 40: 230/400 VACrms, 50/60 Hz 12: 12 A 48: 277/480 VACrms, 50/60 Hz 60: 346/600 VACrms, 50/60 Hz Compact easy-to-use AC semiconductor motor controller. With this controller 3phase motors with nominal load currents up to 12 A can be soft-started and/or soft- RSE 40 03 - B Type Selection Control voltage Uc *) -B: 24 to 110 VAC/DC & 110 to 480 VAC *) The control voltage should never be higher than the rated operational voltage. Input Specifications (Control Input) Output Specifications Control voltage Uc A1-A2: Utilization catagory A1-A3: Rated insulation voltage 24 - 110 VAC/DC ±15%, 12 mA 110 - 480 VAC ±15%, 5 mA 630 V rms Overvoltage cat. III (IEC 60664) Overload current profile (overload relay trip class) Min. load current RSE ..03-B RSE ..12-B AC-53b Integral bypassing of semiconductors x/Tx: 6/13 (IEC 60947-4-2) 100 mAAC rms 200 mAAC rms Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) Specifications are subject to change without notice (30.06.1999) 1 RSE 22 .. - B, RSE 4. .. - B, RSE 60 .. - B Supply Specifications General Specifications Power supply Rated operational volt. (Ue) through terminals L1-L2-L3 22 Accuracy Ramp up Overvoltage cat. III (IEC 60664) (IEC 60038) 127/220 VAC rms ±15% 50/60 Hz -5/+5 Hz 40 230/400 VAC rms ±15% 50/60 Hz -5/+5 Hz 48 277/480 VAC rms ±15% 50/60 Hz -5/+5 Hz 60 346/600 VAC rms ±15% 50/60 Hz -5/+5 Hz Voltage interruption ≤ 40 ms Dielectric voltage None Rated impulse withstand volt. 4 kV (1.2/50 µs) Rated operational power 2 VA supplied from L1-L2 Mode of Operation This motor controller is intended to be used to softstart/ stop 3-phase squirrel cage induction motors and thereby reduce the stress or wear on gear and belt/chain drives and to give smooth operation of machines. Soft starting and or stopping is achieved by controlling the motor voltage. During running operation the semiconductor is bypassed by an internal electromechanical relay. The initial torque can be adjusted from 0 to 85% of the nominal torque. Ramp down Initial torque EMC Immunity Indication for Power supply ON Ramp up/down bypassing relay Environment Degree of protection Pollution degree Operating temperature Storage temperature Screw terminals Tightening torque Terminal capacity Approvals CE-marking 5.5 - 7.5 s on max. ≤ 0.5 s on min. 6 - 10 s on max. ≤ 0.5 s on min. 70 - 100% on max. 5% on min. Electromagnetic Compatibility acc. to EN 50 082-2 LED, green LED, yellow IP 20 3 -20° to +50°C (-4° to +122°F) -50° to +85°C (-58° to +185°F) Max. 0.5 Nm acc. to IEC 60947 2 x 2.5 mm2 CSA (<7.5 HP @ 600 VAC), UL Yes Semiconductor Data The soft-start and soft-stop time can be adjusted from 0.5 to approx. 5 s. A green LED indicates supply. Two yellow LEDs indicate Ramp up/down and Running mode. I2t for fusing t = 1 - 10 ms 72 A2s 610 A2s Rated operational current 3A 12 A ITSM dI/dt 120 Ap 350 Ap 50 A/µs 50 A/µs Functional Diagram Overload protection is not provided in this motor controller and must therefore be installed separately. L1 Uc 110-480V L1 L2 L3 U/ T1 V/ T2 W/ T3 A2 0 A1 U Operation Diagram 1 L3 A3 24-110V The controller is switching 2 lines. The 3rd line is continuously connected to the load. L2 V W Operation Diagram 2 Mains Ue Motor voltage 1 100% 3 2 M 3~ 1 2 3 Control input Uc Time 1 Ramp-up time 0.5 to 5 s. Time from zero load voltage to full load voltage. 2 Ramp-down time 0.5 to 5 s. Time from full load voltage to zero load current. 3 Initial torque 0 to 85% voltage at the start of the ramp-up function. LED LED LED 2 Specifications are subject to change without notice (30.06.1999) RSE 22 .. - B, RSE 4. .. - B, RSE 60 .. - B Housing Specifications Dimensions Weight Housing material Colour Terminal block Colour Bottom clip Colour Diode cover Colour Front knob Colour 102 270 g PC/ABS Blend Light grey PBTP Black POM Black PC Grey Transparent PC Black All dimensions in mm Applications Changing from Direct ON Line start to soft start (Line controlled soft-start) (Fig. 1 & Fig. 2) Changing a Direct On Line start into a soft start is very simple with the RSE soft-starting relay: L1 L2 L3 L1 L2 L3 C1 L1 L2 L3 C1 L1 L2 L3 A1 1) Cut the cable to the motor and insert the RSE relay. A2 A3 U/T1 2) Connect control input to two of the incoming lines. Set initial torque to minimum and ramp up and down to maximum. U/T2 W/T3 U/T1 M U/T2 Soft-start and soft-stop (Fig. 3) When S1 is closed, soft-start of the motor will be performed according to the setting of the ramp-up potentiometer and the setting of the initial torque potentiometer. When S1 is opened, soft-stop will be performed according to the setting of the ramp-down potentiometer. W/T3 M 1L1 3L2 5L3 Fig. 1 3) Power up again - adjust the start torque so the motor starts turning immediately after power is applied, and adjust ramp time to the appropriate value. When C1 is operated, the motor controller will perform soft-start of the motor. When C1 is switched off, the motor will stop, the motor controller will reset and after 0.5 s a new soft-start can be performed. Please note that the controller does not insulate the motor from the mains. Contactor C1 is therefore needed as a service switch for the motor. L1 L2 L3 L1 L2 L3 N I> I> L1 L2 I> L3 S1 A1 ~ A2 A3 L1 L2 L3 L1 L2 U/T1 U/T2 W/T3 L3 A1 M A2 A3 U/T1 U/T2 W/T3 M U/T1 U/T2 W/T3 Fig. 3 M Fig. 2 For voltages higher than 480 VAC Specifications are subject to change without notice (30.06.1999) 3 RSE 22 .. - B, RSE 4. .. - B, RSE 60 .. - B Applications Note: Table is valid for ambient temperature 25°C. For higher ambient temperature add 5%/°C to values in the tables. The shaded areas in the tables are for blocked rotor. Do not repeat rampings with blocked rotor. Time between rampings To prevent the semiconductors from overheating, a certain time between ramping should be allowed. The time between rampings depends on the motor current during ramping and ramp time (see tables below). RSE .. 03 - B Time between rampings Ramp time (sec.) I ramp (A) 18 15 12 9 6 3 1.5 1 2 5 10 15 sec 12 sec 10 sec 8 sec 5 sec 2 sec 1 sec 30 sec 20 sec 20 sec 12 sec 9 sec 5 sec 2 sec 1.5 min 60 sec 50 sec 30 sec 25 sec 20 sec 5 sec 2.5 min 1.5 min 70 sec 50 sec 40 sec 35 sec 5 sec 1 2 5 10 2.5 min 1.5 min 50 sec 30 sec 15 sec 10 sec 5 sec 5 min 3 min 1.5 min 1 min 40 sec 20 sec 9 sec 40 min 13 min 5 min 3 min 1.5 min 50 sec 20 sec N/A 17 min 10 min 7 min 2.5 min 70 sec 40 sec RSE .. 12 - B Time between rampings Ramp time (sec.) I ramp (A) 72 60 48 36 24 12 6 Fusing Considerations The motor controller provides by-passing of the semiconductors during running operation. Therefore the semiconductors can only be damaged by short-circuit currents during ramp-up and ramp-down function. the fault current. If the motor is installed in an environment where the supply to the motor cannot be damaged, the short circuit protection can be considered to be acceptable if the controller is protected by a 3pole thermal-magnetic overload relay (see table below). A 3-phase induction motor with correctly installed and adjusted overload protection does not short totally between lines or directly to earth as some other types of loads, e.g. heater bands. In a failing motor there will always be some part of a winding to limit If the risk of short circuit of the motor cable, the controller or the load exists, then the controller must be protected by ultrafast fuses, e.g. for a 3 A type: Ferraz 660 gRB 10-10, for an 12 A type: Ferraz 660 gRB 10-25. Fuseholder type PST 10. Recommended thermal-magnetic overload relay Selection Chart Thermal-magnetic overload relay and motor controller Motor full load current (AACrms) Overload relay type GV 2Manufacturer: Telemecanique Overload relay type MS 325Manufacturer: ABB 0.1 - 0.16 - 0.25 - 0.4 - 0.63 - 1.0 - 1.6 - 2.5 - 4 6.3 - 9 0.16 0.25 0.4 0.63 1.0 1.6 2.5 4 6.3 9 12 M 01 M 02 M 03 M 04 M 05 M 06 M 07 M 08 M 10 M 14 M 16 0.16 0.25 0.4 0.63 1 1.6 2.5 4 6.3 9 12.5 Motor protection circuit breaker type KTA 3-25- 0.16 Manufacturer: Allan-Bradley/Sprecher + Schuh 0.25 0.4 0.63 1 1.6 2.5 4 6.3 10 16 Motor controller type: 127/220 V mains 230/400 V mains 270/480 V mains 400/690 V mains Example: Line voltage: 230/400 V Motor 1.5 HP: 1.1 kW Full load current: 2.9 A 4 RSE 22 03 - B RSE 40 03 - B RSE 48 03 - B RSE 60 03 - B Step 1: Select overload relay: In this example GV 2 - M 08, MS 325 - 4 or KTA 3-25-4A must be used. Step 2: Select motor controller: For line voltage 230/400 V and overload, relay GV 2 - M 08 or MS 325 - 4 with a setting of 2.9 A type RSE 40 03 -B can be selected. RSE 22 12 - B RSE 40 12 - B RSE 48 12 - B RSE 60 12 - B N.B.: For motors with full load current from 12 A to 40 A, see types RSC/RSO. Specifications are subject to change without notice (30.06.1999)