Bulletin 150 Smart Motor Controllers — SMC-3™

1 Bulletin 150 Smart Motor Controllers SMC-3 11 Visit our website: of OperationBulletin 150 Smart Motor Controllers SMC-3 SmartMotor ControllerThe SMC-3 is a compact, simple to use, solid-state Motor controller designed tooperate 3-phase motors. It features a built-in overload relay and a built-in SCR bypasscontactor on all three phases, allowing a smaller footprint than other soft starters onthe market. This product is designed for many applications, including compressors,chillers, pumps, conveyors, and crushers. Modes of operation for the controller are asfollows:ySoft StartyCurrent Limit StartyKick StartySoft StopyCoast-to-RestThe Controllers are available in ten sizes: 3, 9, 16, 19, 25, 30, 37, 43, 60, and 85 offer two voltage ranges: AC and AC.

2 All voltage rangeswill operate at either 50 or 60 A RangeyBuilt-In Electronic Motor Overload ProtectionyBuilt-In SCR/Run BypassStandards Compliance/ApprovalsyUL 508yCSA No. 14yEN/IEC 60947-4-2ycULus Listed (Open Type) (File No. E96956)yCE Marked (Open Type) per EMC Directive and Low Voltage DirectiveModes of OperationSoft StartThis method has the most general application. The Motor is raised from aninitial torque value to full voltage. This initial torque can be adjusted to15%, 25%, 35%, or 65% of locked rotor torque. The Motor voltage isgradually increased during the acceleration ramp time, which can beadjusted from 2, 5, 10, 15, 20, 25, or 30 s. ( A, s only)Current Limit StartThis starting mode is used when it is necessary to limit the maximumstarting current.

3 It can be adjusted to 150%, 250%, 350%, or 450% of fullload amps. Start times are selectable from 2, 5, 10, 15, 20, 25, or 30 s.( A, s only)Selectable Kick StartA kickstart, or boost, at the beginning of the start mode is intended toprovide a current pulse of 450% of full load current. The kickstart time isadjustable from seconds. This allows the Motor to developadditional torque during starting for loads which may need a boost to getinitial shaft of ContentsCat. No. 13 Product 14 Typical Wiring 18 Approximate 22 Enclosed 24 Accessories (SMC-3 andSMC-Delta).. 25 Bulletin 150 Smart Motor Controllers SMC-3 12 Visit our website: of FeaturesElectronic Motor Overload ProtectionThe SMC-3 controller incorporates, as standard, electronic motoroverload protection.

4 This Motor overload protection is accomplishedelectronically with the use of current transformers on each of thethree phases. The controller s overload protection is programmable,providing the user with flexibility. The overload trip class selectionconsists of either OFF, 10, 15, or 20. The trip current is easilyselected by adjusting the rotary potentiometer to the Motor full loadcurrent rating. Trip reset is selectable to either automatic or :Trip rating is 120% of dial SMC-3 monitors the SCR temperature by means of internalthermistors. When the power poles maximum rated temperature isreached, the microcomputer switches off the SMC and a TEMP faultis indicated via Reversal ProtectionWhen enabled via a DIP switch, 3-phase input power will be verifiedbefore starting.

5 If input power phasing is detected to be incorrect,the start will be aborted and a fault ImbalanceThe unit monitors for imbalance between phase currents. To preventmotor damage, the unit will trip if the phase imbalance exceedsspecified limits and a fault will be indicated on the SCRP rior to every start and during starting, the unit will check all SCRsfor shorts and unit load connections to the Motor . If there is ashorted SCR in the SMC-3 and/or open load, the start will beaborted and a shorted SCR or open load fault will be indicated. Thisprevents damage from phase Loss/Open LoadThe unit will not attempt a start if there is a single-phase conditionon the line. This protects from Motor burnout during StopThe Soft Stop function can be used with applications that require anextended coast to rest.

6 When enabled, the voltage ramp down time can beselected to one, two, or three times the starting time. The Motor will stopwhen the Motor voltage drops to a point where the load torque is greaterthan the Motor of Operation, ContinuedPush to TestThe unit with control wiring can be tested for fault conditions byusing the Push to Test function. Hold down the Reset button for 5seconds to activate the fault Aux (97, 98) and shut down the clear, either push the Reset button or cycle control power to of Operation/FeaturesLED Description (Number of Flashes)1. Overload2. Overtemperature3. Phase Reversal4. Phase Loss/Open Load5. Phase Imbalance6. Shorted SCR7. TestBulletin 150 Smart Motor Controllers SMC-3 13 Visit our website: No. ExplanationOpen and Non-CombinationaBulletin NumberCodeDescription150 Solid-State ControllerbController TypeCodeDescriptionCSMC-3cAmpere RatingsCodeDescription33 A99 A1616 A1919 A2525 A3030 A3737 A4343 A6060 A8585 AdEnclosure TypeCodeDescriptionNOpenFIP65 (NEMA 4/12)fControl ACR24V AC/DC (Open Type only)gOptionsCodeDescription8 LLine Mounted Protective Module (Enclosed Type only)Combination152H C30 FBD 43 8 LabcdefgaBulletin NumberCodeDescription152 HSolid-State controller with Fusible Disconnect153 HSolid-State controller with Circuit BreakerbController TypeCodeDescriptionCSMC-3cAmpere RatingsCodeDescription33 A99 A1616 A1919 A2525 A3030 A3737 A4343 A6060 A8585 AdEnclosure TypeCodeDescriptionFIP65 (NEMA 4/12)

7 EInput Line VoltageOpen AC, 3-Phase, 50/60 HzAD230V AC, 3-Phase, 50/60 AC, 3-Phase, 50/60 AC, 3-Phase, 50/60 HzgOptionsCodeDescription8 LLine Mounted Protective Module (Enclosed Type only)Cat. No. ExplanationeInput Line VoltageOpen AC, 3-Phase, 50/60 AC, 3-Phase, 50/60 HzNon-Combination Enclosed AC, 3-Phase, 50/60 HzA230V AC, 3-Phase, 50/60 AC, 3-Phase, 50/60 AC, 3-Phase, 50/60 C30 FBD 8 LabcdefgBulletin 150 Smart Motor Controllers SMC-3 14 Visit our website: SelectionOpen Type and Non-Combination Enclosed (IP65, NEMA 4/12) ControllersRated Voltage[V AC]CurrentRating (A) 9kWHp ( = 1/2, = 3/4, = 7-1/2)Open TypeIP65 (Type 4/12)Enclosed Non-CombinationControllers 7 Starting AC50/60 HzControl24V AC/DCControl350%450%350%450%Cat.

8 FLA rating must fall within specified current range for unit to operate Controllers require a separate , 50/60 Hz single-phase control source. To add a control circuit transformer to the enclosure, add theappropriate option code to the catalog 150 Smart Motor Controllers SMC-3 15 Visit our website: Enclosed (IP65, NEMA 4/12) Controllers with Fusible Disconnect or Circuit BreakerProduct Selection, ContinuedRated Voltage[V AC]CurrentRating (A) Hp ( = 1/2, = 3/4, = 7-1/2)IP65 (Type 4/12) Enclosed CombinationControllers with Fusible Disconnect 7IP65 (Type 4/12) Enclosed CombinationControllers with Circuit Breaker 7 Cat. Controllers require a separate , 50/60 Hz single-phase control source. To add a control circuit transformer to the enclosure, add theappropriate option code to the catalog 150 Smart Motor Controllers SMC-3 16 Visit our website: ConfigurationNEMAT hree-Wire ConfigurationIECNEMAT ypical Wiring DiagramsBulletin 150 Smart Motor Controllers SMC-3 17 Visit our website: Contactor ConfigurationIECNEMAR eversing ConfigurationNote:Minimum Off time equals Wiring Diagrams, ContinuedBulletin 150 Smart Motor Controllers SMC-3 18 Visit our website: Ratings Cat.

9 Nos. operating current Ie(A)391619253037436085 Heat dissipation (W)Continuous11121415171924345082 Rated operating , AC 50/60 Hz, 3-phase (+10%, -15%)Line Power terminalsCable size:Tightening mm2( AWG) N m ( in-lbs) mm2( AWG) N m( in-lbs)Load Power terminalsCable size:Tightening mm2( AWG) N m ( in-lbs) mm2( AWG) N m( in-lbs)Control terminalsCable size:Tightening mm2( AWG) N m ( in-lbs)Maximum continuous current3 A9 A16 A19 A25 A30 A37 A43 A60 A85 AOverload current range (A) Voltage AC or 24V AC/DC 50/60 HzShort Circuit Coordination (Max Fuse or Circuit Breaker Size) Type 1UL Class K5 FusesUL Listed Combination (600V)5 kA Available Fault Current10 A35 A60 A70 A100 A110 A125 A150 A UL Class K5 FusesUL Listed Combination (600V)10 kA Available Fault Current 225 A300 AUL Class RK5 FusesUL Listed Combination (600V)5 kA Available Fault Current10 A35 A60 A70 A100 A110 A125 A150 A UL Class RK5 FusesUL Listed Combination (600V)10 kA Available Fault Current 225 A300 AUL Listed Thermal Magnetic Circuit BreakerUL Listed Combination (600V)

10 5 kA Available Fault Current15 A35 A60 A70 A100 A110 A125 A150 A UL Listed Thermal Magnetic Circuit BreakerUL Listed Combination (600V)10 kA Available Fault Current 225 A300 AUL Listed Bulletin 140M Motor Protection Listed Combination (600V)5 kA Available Fault CurrentC25C25F45F45F45F45F45 Power CircuitUL/cULIECR ated operational ~ 400V~500V~ 500V~Rated insulation voltage600V AC500V~Dielectric withstand2200V AC2500V~Repetitive AC AC ~ 1400V500V~ 1600 VOperating frequency50/60 Hz50/60 HzUtilization AIntermittent dutyAC-53b: AAC-53b: :3570 Number of polesEquipment designed for 3-phase onlyRated impulse voltage6 kVDV/DT protection1000V/ sOvervoltage categoryIIIIIIC ontrol CircuitUL/cULIECR ated operational voltage (+10%, 15%) AC, 24V ~, 24V AC/DCRated insulation voltage250V250V~Rated impulse voltage 4 kVDielectric withstand1500V AC2000V~Overvoltage category III 9 Operating frequency50/60 Hz50/60 HzInput onstate voltage minimum, during start (IN1, IN2)85V AC, DC / ACInput onstate current (IN1, IN2) mA @120V mA @ 240V AC, mA @ 24V AC/DCInput offstate voltage maximum (IN1, IN2)40V AC, 17V DC / 12V ACInput offstate current @ input offstate voltage(IN1, IN2)