NEW Series EMC48S50-04

Transcription

1 NEW Series EMC8S0-0 Three-Phase Induction Vac, kw (Y), kw (D) INDUCTION MOTOR SOLID-STATE REDUCED VOLTAGE STARTER (SOFTSTARTER) WITH SOFTSTOP FEATURE The Series EMC can be used as an alternative to costly and relatively big variable speed controllers in applications such as pumps, fans, compressors and conveyors. Its six-thyristor structure, working like a full-wave phase angle controller (both positive and negative cycles are controlled), reduces the induction motor starting current as well as the motor starting torque. The reduction in motor starting current improves the efficiency of the power used. It also avoids voltage fluctuations that lead to ambient light variations or flicker. The Series EMC fits existing applications without any modification of the wiring field configuration. Thus it can replace an electromechanical star-delta starter without changing the motor coupling. The EMC may be implemented like a standard three-phase electromechanical contactor for induction motors. Furthermore, its ability to be installed inside the delta wiring allows the Series EMC to drive.7 times more current than a standard online softstarter. The Series EMC features diagnostic and self-test functions to assist with machine maintenance, reduce costs, and delays of restarting equipment. MAIN CHARACTERISTICS C S tar (Y) Delta (D) 0ac ac 0ac ac C EN097-- kw 8.kW kw kw 0A.A Phase to Phase 00 to 8ac Mains Frequency 0 to Hz Input 0 to Vdc Status Output V/A AC/DC In/Out/Case Isolation kv Operating Temperature 0 C to +00 C BENEFIT FOR MOTOR STARTING TYPICAL WIRINGS DIRECT ON LINE (DOL) STARTING Speed STAR (Y) DELTA (D) In On Line Current t Mechanical part stress - Noise - Maintenance costs High inrush current - and mains protection oversized - Risk of flicker SOFTSTARTING WITH EMC Speed In On Line Current Softstarting - Noise reduction - Maintenance cost reduction No more high inrush current - and mains protection oversized - No more harmonic or flicker problems t 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q

2 Series EMC8S0-0 SETTINGS AND DIAGNOSTIC Fig. INTERNAL DIAGRAM Fig. DESCRIPTION L L L Three-phase mains connections Phases LEDs Switches Urg. Input Bypass µler Internal Synchr. Switch Status Power Element T T T Power Elements LEDs s Status outputs / Line / Load Urg L L L L L L Option switches (Behind the label) Time Torque Options Settings connections DESCRIPTION OF THE CONNECTIONS Terminals & & & & L, L, L T, T, T Function Input/Output Activated when... Diagnostic Output Closed Bypass Output Closed Input High (PNP) or Low () es (+ / Urgent stop Input Open Three-phase mains (Obligatory) Input x0ac supply (Obligatory) Output 00ms after control NO (AC P olarization N O (AC or DC) N O (AC or DC) Y ) Y es (+ / ) N O (AC) ) Setting/Option Function Possibilities Time Increasing voltage ramp duration DESCRIPTION OF THE SETTINGS AND OPTIONS Torque Min. voltage applied to the motor at start T s=0 up to s 0 up to 00% Soft Decreasing voltage ramp duration 0, /, or x ts up to s max. Bypass Bypass presence diagnostic option (if bypass used) / type of control option PNP, or on mains presence shaft breakaway 0 up to 00ms depending on ts Proceeding Fig. DESCRIPTION OF THE DIFFERENT SETTING PARAMETERS ing Current Applied to the ( Torque ) Speed 800% In Vn (DOL) on Speed Nn ts In 0 t Shaft Turning Detection Nominal Speed: End of the Softstarting and Bypass Closing Theoretical End of the Ramp Set by the User (ts) End of the Fast Deceleration Back to the State and Diagnostic EMC8S0-0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

3 Series EMC8S0-0 SETTINGS AND DIAGNOSTIC Visualization Line Visualization Line Load Load DESCRIPTION OF THE DIAGNOSTIC INFORMATION IN NORMAL OPERATION Status Output B ypass Status Output B ypass ped ped ing Running to nominal speed Decelerating DIAGNOSTICS IN CASE OF FAILURE ped ped Running ped ped Possible Cause Solution Mains voltage too low Check the phases L and L Phase(s) missing; mains frequency out of range; too much inteference Phase(s) missing Load missing; short-circuited thyristor Bypass missing (its checking is re- quired by the corresponding option) Probable Cause No mains or device not correctly wired Mains voltage and phases OK; motor detected; no control Mains voltage and phases OK; motor detected; control detected and beginning of the softstarting ramp Mains voltage and phases OK; motor detected; no control detected and end of the softstarting ramp Mains voltage and phases OK; motor detected; no control detected and beginning of the softstopping ramp Check the phases Check the phases Check the motor connections and the solid-state switches Check the bypass connections or, if not used, cancel the checking option ped ped ped ped The solid-state switches cannot close Microcontroller malfunction A problem occurred on the mains (no voltage or a phase is missing) then disappeared, but the control voltage was applied A problem occurred on the load (temporary disconnection) then disappeared, but the control voltage was applied Check if the connection between and of the control terminal block is correctly done. Check as well if the load current is sufficient. Disconnect the softstarter from the mains for a while Remove the control for a while Remove the control for a while LEGEND Off Green Red Flashing Green Flashing Red Open Closed IMPORTANT INFORMATION ABOUT THE DIAGNOSTIC. The device makes a complete diagnostic (mains, load and itself) since it has enough supply voltage (On the mains or on the control side).. The device only checks the presence of the phases and the closing of the solid-state switches during the voltage ramps (softstart and softstop) and during the full on-state period.. The control overrides the diagnostic. If a problem occurs during the control period, the device will close all the solid-state switches. If the problem goes on during the full on-state period, the corresponding information will be given to the user according to the table above. Likewise, if a problem occurs during the softstopping period, the device will stop immediately in order to reach the off-state diagnostic period.. On a hard stop (no softstop) and in the case of driving a large motor, the device may temporarily display a problem concerning the mains. This is due to an important residual voltage across the motor windings (back EMF generated by the motor rotation and the remaining magnetic field). This security allows the user to avoid connecting the motor to the mains in bad conditions. This phenomenon can be cancelled by using the softstop feature that slowly reduces the remaining magnetic field inside the motor. This also avoids overvoltage across the solid-state switches (increasing the lifetime expectancy of the integrated varistors). Therefore, softstop is recommended even with high inertia motor loads. 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q

4 Series EMC8S0-0 CONTROL CONTROL INPUTS AND STATUS OUTPUTS Vc Fig. HIGH SIDE CONTROL (PNP) + or or Immediately Ic Ict Vt Urg. Fig. LOW SIDE CONTROL () Fig. STATUS OUTPUT UTILIZATION or Vt Immediately Ict or Ict Vt Urg. Vsa Bypass Contactor Line Contactor Indicators PLC Inputs... Iby Ipb Urg. Input Function ELECTRICAL CHARACTERISTICS OF THE STARTING AND STOPPING INPUTS (Given at 0 ling the device Urg. Immediately stop the device Opening the connection to zero volt & Type (Depending on the option switches) High side control (PNP) Low side control () Concerned Terminals & & Range (according to EN097--) Vc 0-Vdc M in. Vcmin. 8.V Drop Input Reverse Release Current Current to Switch Vt Vcmax=8Vdc Vcmax=8Vdc Vc<Vdc 9mAdc.Vdc.Vdc Vtmax=8Vdc Vtmax=8Vdc Vt>.Vdc Vtmax=Vdc Vtmax=Vdc Vt>.Vdc Ic See Fig. 7 Ict 0-00µ Adc 0mAdc Depends on Vt STATUS OUTPUT CHARACTERISTICS (Given at 0 O utput Bypass Concerned Terminals & & Function Indicates the end of the starting Environment problem detection or period and can be used to control a faulty device indication bypass electromechanical contactor Nom. Operating Operating Range Non-Repetitive Peak Protection Against Overvoltage Min. Load Current Permanent Current Overload Current Protection Against Short Circuits On-State Resistance Off-State Resistance Off-State Capacitance Turn-On Time Turn-Off Time Vsan Vsa Vsapmax Ibymin Ipbmin Iby/Ipb Ibyp/Ipbp Ron Roff Coff Toff Ton Vac/dc 0-8Vac/dc Yes; V size 7 varistors integrated See Fig. & 0 A ac/dc See Fig. 8.A ac/dc 0% of the cycle 00mΩ See Fig. 9 00MΩ 0pF See Fig. 0 0.ms ms EMC8S0-0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

5 Series EMC8S0-0 CONTROL CHARACTERISTIC CURVES OF THE CONTROLLING INPUTS AND STATUS OUTPUTS Fig. 7 CONTROL INPUT CURRENT/VOLTAGE CHARACTERISTIC IN PNP MODE (HIGH SIDE CONTROL) Fig. 8 MAX. OUTPUT STATUS CURRENT VERSUS AMBIENT TEMPERATURE Current Ic in ma Vc Releasing Vc min Range According to EN097-- Vc max Load Current Iby / Ipb (A) Vc in Volts 0. Ambient Temperature ( C) Fig. 9 OFF-STATE STATUS OUTPUT PARASITIC CAPACITANCE VERSUS OUTPUT VOLTAGE Fig. 0 ON-STATE STATUS OUTPUT RESISTANCE VERSUS AMBIENT TEMPERATURE Output Capacitance Coff (pf) Output Resistance Roff (mω) Auxiliary Vsa (V) Ambient Temperature ( C) Fig. STATUS OUTPUT OVERVOLTAGE PROTECTION CHARACTERISTIC Fig. MAX. OVERLOAD PULSES REGARDING DURATION FOR OVERVOLTAGE PROTECTION OF STATUS OUTPUTS 00 v 0 A i max x x tr imax A 0 i tr 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q

6 Series EMC8S0-0 POWER INTERNAL SUPPLY ELECTRICAL CHARACTERISTICS (Given at 0 Concerned Terminals L & L Range Consumption Ve Is 00-8ac ma typical Frequency Range f 0-Hz Turn-On Time tm 00ms See Fig. POWER SIDE CHARACTERISTICS (Given at 0 Concerned Terminals L, T, L, T, L, T Max Power of Star Wiring (Y) Pn kw Max Power of Star Wiring (Y) Pn 8.kW Max Power of Delta Wiring (D) Pn kw Max Power of Delta Wiring (D) Pn kw Nom. Operating Operating Range Non-repetitive Peak Integrated Overvoltage Protection Ven Ve Vep ac & 0ac 00-8ac 0 Yes size varistors Device wired inside the delta Device wired inside the delta See Fig. & 7 ACa Nom. Current according to Ie Hard conditions.a EN097-- (Induction ) (ACa) See Fig. ACa Permanent Current Ie Normal conditions 0A (Induction ) (ACa) See Fig. AC Permanent Current 0A Ith (AC) (Resistive Loads) (A if the wire cross-section is doubled for each power terminal) e.g. softstarting lamps Non-repetitive Peak Overload Current ( cycle of 0ms) ITSM 000A See Fig. Fusing Limit Current for Choosing the Protecting Fuses I t 0000A Min. Load Current Iemin 00mA Leakage Current Ik 0Hz Power Factor Pf 0- Operating Mains Frequency Range F 0-Hz Off-state dv/dt d v/dt 0/ µs Integrated Transient Protection Current Rising Time Direct Drop Resistive Part of the Direct Drop Threshold Part of the Direct Drop Junction Temperature Junction/Plate Thermal Resistance Per Power Element Plate/Heatsink Thermal Resistance Vertically Mounted Heatsink Thermal Resistance Heatsink Thermal Time Constant d i/dt / Vd rt Vto Tjmax Rthjc Rthcs Rthra Tthra Yes RC network 0A C C C 0. K/ W 0.0 K/ W Total = power elements 0. K/ Tra=0 C Tra=0 C EMC8S0-0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

7 Series EMC8S0-0 POWER CHARACTERISTIC CURVES OF THE POWER ELEMENTS Fig. ELECTRICAL LABEL DESCRIPTION Fig. OVERLOAD CURRENT CHARACTERISTIC REGARDING OVERLOAD DURATION Three Phase Mains Ie Ve Is Ie Is Ie ITSM (A) (Peak ) / Line / Load Urg L L L L L L Vd Repetitive Non-repetitive Time(s) Load Fig. NOMINAL CURRENTS VERSUS AMBIENT TEMPERATURE Permanent Current Ie (ARMS) ATTENTION: The maximum wire cross-section is 0mm without furrule. When current exceeds 0A, it may be necessary to double the wire number per terminal Resistive load control (AC) Limit for heat sink temperature below 00 C (Resistive loads; AC current) Limit for heat sink temperature below 80 C according to EN097 (Resistive loads; AC current) Limit for motor control in normal use (ACa current) Limit for motor control with hard conditions according to EN097-- (ACa current) Dissipated Power (W) 0 0 control (ACa) Fig. OVERVOLTAGE PROTECTION CHARACTERISTIC (VARISTORS) Fig. 7 MAX. OVERLOAD PULSES REGARDING DURATION FOR OVERVOLTAGE PROTECTION OF POWER ELEMENTS v A i max 0 x x 0 tr i max A 0 i t r 00 TELEDYNE RELAYS (800) EMC8S0-0 7 EMC8S0-0\000\Q

8 Series EMC8S0-0 GENERAL Power Output/Input Isolation Status Outputs / Input Isolation Plate/Input Isolation Status Output/Plate Isolation Isolation Resistance Isolation Capacitance Vimp Vied Vimp Vimp Rio Cio INPUT/OUTPUT ISOLATION CHARACTERISTICS (Given at 0 Kv.Kv Kv Kv GΩ <8pF Storage Ambient Temperature Ambient Operating Temperature Max Heat Sink Temperature et Heat Resistance (Continuous) et Heat Resistance (Cyclical) Tstg Tamb Tc CLIMATIC OPERATING ENVIRONMENT (Given at 0 0 to 00 C 0 to 90 C 00 C According to I.E.C. 8 parts According to I.E.C. 8 parts W & W & 0 Connections Screwdriver Wire Cross Section Min. & Tightening Torque CONNECTIONS AND REQUIRED TOOLS ON THE CONTROL SIDE (Given at 0 Screwed 0.8 x mm.mm Connections Screwdriver Wire Cross Section Min. & Tightening Torque Possible Number of Connected Wires for the Cross Section CONNECTIONS AND REQUIRED TOOLS ON THE POWER SIDE (Given at 0 Screwed Posidriv or 0.8 x.mm.-mm ( 0mm without ferrule).8 to N. m CHARACTERTISTICS AND REQUIRED TOOLS FOR THE SETTINGS (Given at 0 S etting " Time" and " Torque" Option Switches Screwdriver Number of Postions 0 for each switch C hanging Position Required Torque >.N.cm +/ 0% >N.cm +/ 0% A ngle Between Each Position 0 MISCELLANEOUS CHARACTERISTICS (Given at 0 Housing UL9V0 Mounting Noise Level eight Omega DIN rail (DIN00) or screwed Low audible vibration during the softstarting and softstopping periods 9.7 oz. (00g W ) Rotary switches: No rotation stop EMC8S0-0 8 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

9 Series EMC8S0-0 GENERAL Fig. 8 DIMENSIONS.0 () Ve V 0/HZ AC-a Ie 0 A V imp 00 IEC97-- EN FOR RATINGS SEE INSTRUC. SHEET / Line / Load L L L Urg Æ L L L.99 (7). (90). ().8 (8) AC. (0) Contact Type Closing Temperature Opening Temperature Nom. Nom. Current Contact Resistance Isolation Between Opened Contacts Isolation Between Contacts and Housing Isolation Resistance Connections CHARACTERISTICS OF THE THERMAL PROTECTION (Given at 0 Normally closed 90 C +/ C 80 C ac/dc A 0mΩ 0GΩ kv 0GΩ.8mm flat tabs or welded wires CHARACTERISTICS OF THE FAN Consumption Frequency Speed Noise Level Connections (Given at 0 Shaded pole induction motor ac 9W 8mA 0-0Hz 00 RPM dba.8mm flat tabs 00 TELEDYNE RELAYS (800) EMC8S0-0 9 EMC8S0-0\000\Q

10 Series EMC8S0-0 STANDARDS Electrostatic discharges Radiated Electromagnetic Fields Fast Transient Bursts Electric Shocks Drop IMMUNITY LEVEL WITHIN ELECTROMAGNETIC COMPATIBILITY (E.M.C.) EN EN EN EN EN (Given at 0 8kV in the air kv contact /m kv direct coupling on the power side kv clamped coupling on the input side kv direct coupling differential mode (Input and output sides) kv direct coupling common mode (Input and output sides) EMISSION LEVEL WITHIN ELECTROMAGNETIC COMPATIBILITY (E.M.C.) Conducted Disturbances EN0 Radiated Disturbances EN0 Concerning Filtering (Given at 0 In compliance with the standards for industrial field In compliance with the standards for domestic field with an external bypass contactor < 0dbµ V for the frequency range 0 0MHz < 7dbµ V for the frequency range 0 000MHz The conducted or radiated disturbances generated by solid- state relays depend on the wiring and load configuration. The test method recommended by the European standards concerning electromagnetic compatibility leads to results far from reality. We recommend use of filters based on your application. The European standard EN097-- requires the measurement to be done at full on state (end of the softstarting period). Therefore, our products are below the industrial field required levels on inductive load like the induction motor and no additional filter is needed. The starting period that may last several minutes generates enough interference to disturb sensitive devices located near the softstarter. No state changing or destruction No state changing or destruction No state changing or destruction No state changing or destruction LOW-VOLTAGE DIRECTIVE (Given at 0 Standard EN097-- Protection Level Protection for Direct Touch IP L0 According to V.D.E. 0 part 00; Back hand and finger safety CE Marking EN c UL US UL08 VDE 080 EN090 APPROVALS (Given at 0 Yes Pending Pending Office environment EMC8S0-0 0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

11 Series EMC8S0-0 STANDARDS DANGER! IMPORTANT The installation of this product must be done by qualified people, informed about electric hazards (electrocution risks linked to the voltage levels in the circuit). Any intervention on the installation must be operated with the circuit disconnected from the electric grid by an electromechanical mean insuring a sufficient galvanic isolation. The EMC is composed of silicon-based solid-state switches. They never ensure a safe function when they are not controlled (important leakage current and untimely closing). Therefore, we advise you to use an electromechanical device in series with the softstarter, which can ensure a safe operation in the disconnected circuit. The emergency stop must not be done by the softstarter. It must be done by an electromechanical mean with sufficient current breaking possibility. In order to operate the circuit safely, the control part of the softstarter will have to be disconnected from the control or auxiliary supplies as well. ATTENTION. The EMC does not correctly operate on three-phase mains with the motor neutral connected to the neutral of the mains. If you have such a requirement, please contact us.. The overload relay must be adapted to the motor.. Please take care not to make short circuits while installing the bypass contactor or the backward wires for delta wiring.. In case of devices planned to be used connected to a bypass contactor, the control voltage will have to be held sufficiently to allow the bypass to close. Verify the bypass checking option byp.. In case of fast softstarting and softstopping controls without waiting for the end of the ramps, the motor may heat up. Please contact your motor supplier to choose an adapted model. Devices On Line Fuses (Hard conditions according to EN097--) On Line Fuses (Normal conditions) Overload Relay (Hard conditions according to EN097--) Overload Relay (Normal conditions) Breaking Capability of the Bypass Contactor ypass Contactor Coil ENVIRONMENT OF THE SOFTSTARTER Description FERRAZ x am 0/0 To be determined by the user Moeller Z00- class 0A To be determined by the user KM 0A AC B A /A VAmax. / W max. Thermal Protection Wiring / Settings T C Not available Comply with the characteristics given in general information 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q

12 Series EMC8S0-0 INSTALLATION WIRING POSSIBILITIES Fig. 9 HIGH SIDE CONTROL (PNP) L L L L L L Auxiliary AC/DC 0 >Vdc + T C T T T L<9.9 in. (0cm) max. / Immediately / Line / Load L L L L L L A + Urg. Ctrl L L L KM A A KM User Information 0. T T T A U V W W M~ U V Delta Coupling Fig. 0 LOW SIDE CONTROL () L L L L L L Auxiliary AC/DC T C T T T L<9.9 in. (0cm) max. Immediately / Line / Load L L L L L L A + Urg. Ctrl L L L KM A A KM User Information 0. T T T A U V W W M~ U V Delta Coupling EMC8S0-0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

13 Series EMC8S0-0 INSTALLATION WIRING POSSIBILITIES Fig. UPON THE MAINS CONTROL L L L L L L Auxiliary AC/DC T C T T T L<9.9 in. (0cm) / Immediately / Line / Load L L L L L L A Urg. L L L KM A A KM User Information 0. T T T A U V W W M~ U V Delta Coupling OTHER LOAD POSSIBILITIES SOFTSTARTING INCANDESCENT OR INFRARED LAMPS (AC CURRENT) SOFTSTARTING THREE-PHASE LOADED TRANSFORMERS (PLEASE CONTACT US) L L L L L L L<9.9 in. (0cm) L<9.9 in. (0cm) / Line / Load Urg. L L L L L L L L L A KM / Line / Load + Urg. Ctrl L L L L T L L T T A KM A T T T A Delta Coupling Delta Coupling Load 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q

14 Series EMC8S0-0 INSTALLATION MOUNTING Fig. MOUNTING PRECAUTIONS The heat sink fins must be mounted vertically to ensure a good thermal convection. A minimum space must be left free around the assembly. MOUNTING WITH SCREWS Ø (.) 0.98 ().97 (00) Ø (.) MOUNTING OMEGA DIN RAIL MOUNTING (EN00) FIXING REMOVING EMC8S0-0 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 00 TELEDYNE RELAYS EMC8S0-0\000\Q

15 Series EMC8S0-0 INSTALLATION ADVICE FOR THE SETTINGS ATTENTION Obtaining a particular starting time value is only a consequence of the motor torque reduction and cannot be guaranteed or easily repeatable. The rotary switch < Time (s) > setting values only give the duration of the voltage ramp applied to the motor but not necessarily its starting time. The main EMC function is to obtain a motor torque reduction to take care of the motor load and the electric grid. The motor starting time is only a consequence and completely depends on the motor itself, its load and the settings done by the user. The EMC cannot break a motor driving a load that has much inertia. The user can only obtain a stop time equal or longer than a simple disconnection from the electric grid. Using the softstop feature can only be justified when the motor load tends to break the motor (pumps,...) or when the products treated by the machine need to be stopped slowly (conveyors,...). In the case of a load with high inertia, the softstop feature can help to reduce slowly the magnetic field inside the motor to avoid long time overvoltage in the circuit. SETTING EXAMPLES Direct On Line ing (DOL) Long ing Time for Lamps, Transformers... (On a motor, it may hum) Advised Settings for Testing the ing Loads with Increasing Torque Like N and Increasing Power Like N Loads with Decreasing Torque Like /N and Constant Power Load Examples Advised Time Setting Load Examples Advised Time Setting Fans, centrifugal pumps,... Depending on the user starting time requirement Winding material around a shaft (cable, paper, metal, textile, plastic...), chip disposal... Maximum (s) Torque Curve Advised Torque Setting Torque Curve Advised Torque Setting C Adjusted to avoid motor hum C Depending on the user starting current requirement Softstop Softstop N / of the starting time (Magnetic field reduction) N / of the starting time (Magnetic field reduction) Loads with Constant Torque and Increasing Power Like N Loads Increasing Like N and Constant Power Load Examples Advised Time Setting Load Examples Advised Time Setting Conveyors, cranes, constant volume pumps Maximum (s) Machine tools, rolling mills,... Depending on the user starting time requirement Torque Curve Advised Torque Setting Torque Curve Advised Torque Setting C Depending on the user starting current requirement C Adjusted to avoid motor hum Softstop Softstop N Depending on the user stopping smoothness requirement N Depending on the user stopping smoothness requirement 00 TELEDYNE RELAYS (800) EMC8S0-0 EMC8S0-0\000\Q