Motor Controllers, Single Phase 3-Phase Torque Reduction Types RSE 1112-BS, RSE 2312-BS, RSE 4012-BS * Rated operational current: 12 AAC 53 b * Soft starting of most single phase motors * Torque reduction by use on 3-phase motors * Rated operational voltage: Up to 400 VAC, 50/60 Hz * LED-indications for supply and operation * Transient overvoltage protection built-in * Integral bypassing of semiconductor Product Description Ordering Key Torque reduction by ramping of a single phase in 3-phase applications is also possible with this module. Solid State Relay Motor controller E-line housing Rated operational voltage Rated operational current Control voltage Single Phase Control Rated operational voltage Ue Control voltage Uc Rated operational current Ie 12 A 11: 115 VACrms, 50/60 Hz 23: 230 VACrms, 50/60 Hz 40: 400 VACrms, 50/60 Hz -B: 24 to 110 VAC/DC & 110 to 480 VAC RSE 1112-BS RSE 2312-BS RSE 4012-BS Compact easy-to-use AC semiconductor motor controller. With this controller single phase capacitor run induction motors with nominal load currents up to 12 A can be soft-started. Starting time as well as initial torque can be independently adjusted built-in potentiometers. by RSE 23 12 - BS Type Selection Input Specifications (Control Input) Output Specifications Control voltage Uc A1-A2: Utilization category 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) Dielectric strength Dielectric voltage 2.5 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 s) Specifications are subject to change without notice (30.09.2005) AC-53b Integral bypassing of semiconductors Overload current profile (overload relay trip class) 12A: AC-53b: 3-5: 180 Inactive Max. number of soft startings Startings TA per hour (at max. current for 5 s) 19 25C 180 s 15 30C 225 s 11 40C 315 s Min. load current RSE ..12-BS 200 mAAC rms 1 RSE 1112-BS, RSE 2312-BS, RSE 4012-BS Supply Specifications General Specifications Power supply Rated operational volt. (Ue) through terminals L1/L-L2/N 11 23 40 Voltage interruption Dielectric voltage Rated impulse withstand volt. Rated operational power supplied from Accuracy Ramp up Overvoltage cat. III (IEC 60664) (IEC 60038) 115 VAC rms 15% 230 VAC rms 15% 400 VAC rms 15% 40 ms None 4 kV (1.2/50 s) 2 VA L1/L- L2/N Mode of Operation This motor controller is intended to be used to softstart single phase run capacitor induction motors and thereby reduce the stress or wear on gear and belt/chain drives and to give smooth operation of machines. Soft starting 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. Initial torque EMC Immunity Indication for Power supply ON Ramp up bypassing relay Environment Degree of protection Pollution degree Operating temperature Storage temperature Screw terminals Tightening torque Terminal capacity CE-marking Approvals 5.5 - 7.5 s on max. 0.5 s on min. 70 - 100% on max. 5% on min. Electromagnetic Compatibility acc. to EN 61000-6-2 LED, green LED, yellow IP 20 3 -20 to +50C (-4 to +122F) -50 to +85C (-58 to +185F) Max. 0.5 Nm acc. to IEC 60947 2 x 2.5 mm2 Yes UL, cUL, CSA Semiconductor Data The softstart time can be adjusted from 0.5 to approx. 6.5 s. A green LED indicates supply. Two yellow LEDs indicate Ramp up and Running mode. Rated operational current 12 A I2t for fusing t = 1 - 10 ms 610 A2s ITSM dI/dt 350 Ap 50 A/s Functional Diagram Overload protection is not provided in this motor controller and must therefore be installed separately. The controller is only switching L1 line. The L2/N and L3 are continuously connected to the load. Operation Diagram 1 Operation Diagram 2 Mains Ue 1 100% M 2 Control input Uc Time 1 Ramp-up time 0.5 to 6.5s. Time from zero load voltage to full load voltage. 2 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 (30.09.2005) RSE 1112-BS, RSE 2312-BS, RSE 4012-BS Housing Specifications Dimensions Weight Housing material Colour Terminal block Colour Bottom clip Colour Diode cover Colour Front knob Colour 270 g PC/ABS Blend Light grey PBTP Light grey POM Black PC Grey Transparent PA Grey All dimensions in mm Applications for Single Phase Motors Changing from Direct ON Line start to soft start (Line controlled soft-start) (Fig. 1 ) Changing a Direct On Line start into a soft start is very simple with the RSE softstarting relay: 1) Cut the cable to the motor and insert the RSE relay. 2) Connect control input to the two mains lines. Set initial torque to minimum and ramp up potentiometer to maximum. N L 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. Soft-start (Fig. 2) 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. 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. N L N L C1 C1 C1 I> L1/L L2/N L3 L1/L L2/N L3 L1/L A1 L2/N L3 A1 S1 ~ A2 A2 A3 A3 T2/N T1/T M T3 T1/T T2/N T3 T1/T M M Fig. 1 Specifications are subject to change without notice (30.09.2005) T2/N T3 Fig. 2 3 RSE 1112-BS, RSE 2312-BS, RSE 4012-BS Applications for Single Phase Motors (cont.) Note: Table is valid for ambient temperature 25C. 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 .. 12 -BS Time between rampings Ramp time (sec.) I ramp (A) 72 60 48 36 24 12 6 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 Fusing Considerations The motor controller provides by-passing of the semiconductor during running operation. Therefore the semiconductor can only be damaged by short-circuit currents during ramp-up and ramp-down function. A single-phase run capacitor 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 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 singlepole thermal-magnetic overload relay. 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. Ferraz 660 gRB 10-25. Fuseholder type PST 10. Applications for Three Phase Motors 3-phase torque reduction When C1 is closed, a torque reduced start of the 3-phase motor will be performed according to the setting of the ramp-up potentiometer, and the setting of the initial torque potentiometer. Warning: When the motor is stopped C1 must be open to remove all 3 phases from the motor. This is necessary to avoid 2phase running of the motor. L2 L1 L3 C1 L1/L L2/N L3 A1 A2 A3 T1/T T2/N T3 M 4 Specifications are subject to change without notice (30.09.2005)