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55 - PVD 3664_GB_NK-November 2016.Docx 

3.4.5. 

Water cooled version recommendations 

3.4.5.1.  O-ring recommendations 

The cooling circuit is sealed by four O-

rings seal between stator and user’s housing. 

 

 

 

Caution:  The  2  O-rings  must  be  greased  with  an  ordinary  lubricant 
before mounting to avoid damages and leakages. 

 

 

 

Caution:  Be  careful  not  to  make  damage  on  the  O-ring  during  the 
mounting to avoid leakage. 

It’s recommended to realize a waterproof 

test with 5 bars air pressure during 30 minutes and check if there is not 
pressure decreasing. 

 

 

 

Caution: Water inlet and outlet must be aligned with the cables inlet to 
guarantee an optimized cooling circulation.

  

 
 

 

 

 

Motor 

O-ring 

diameter 

(mm) 

Cross 

section 

(mm) 

Material  Hardness 

Working 

temperature 

(°C) 

PARKER part 

number 

NK3 

75.92 

1.78 

NBR 

70 shores  -25 / +120 

5340P0069 

NK4 

94.97 

1.78 

NBR 

70 shores  -25 / +120 

5340P0081 

NK6 

126.72 

1.78 

NBR 

70 shores  -25 / +120 

5340P0077 

NK8 

151.64 

1.78 

NBR 

70 shores  -25 / +120 

5340P0093 

 

3.4.5.2.  Condensation water drain hole 

Condensation and risk of rust may occur when the temperature gradient between the 
air and the water becomes significant, so drain holes must be integrated on the frame 
design. These holes must be positioned at the lowest point in the motor housing. 
Condensation water drain holes must be checked at least once a year 
 

 

Summary of Contents for NK Series

Page 1: ...1 PVD 3664_GB_NK November 2016 Docx Servomotors NK Series Technical Manual PVD 3664_GB ...

Page 2: ...hines IP code Classification EN 60204 1 2006 AC 2010 Safety of machinery Electrical equipment of machines Part 1 General requirements The product itself is not impacted by the modifications made on the latest directives The undersigned certify that the above mentioned model is procured in accordance with the above directives and standards Further information SERVOMOTORS shall be mounted on a mecha...

Page 3: ... 3 2 4 Further Data with natural cooling 23 3 2 5 Further Data with water cooling 24 3 2 6 Efficiency curves 25 3 2 7 Electromagnetic losses 33 3 2 8 Time constants of the motor 34 3 2 9 Speed ripple 36 3 2 10 Cogging torque 36 3 2 11 Rated data according to rated voltage variation 37 3 2 12 Voltage withstand characteristics of NK series 39 3 3 Dimension drawings 40 3 3 1 NK1 40 3 3 2 NK2 41 3 3 3...

Page 4: ...3 7 3 Motor cable length 71 3 7 4 Ground connection 71 3 7 5 Motor cable 71 3 8 Feedback system 72 3 8 1 Resolver 72 3 8 2 Encoder 77 4 COMMISSIONING USE AND MAINTENANCE 78 4 1 Instructions for commissioning use and maintenance 78 4 1 1 Equipment delivery 78 4 1 2 Handling 78 4 1 3 Storage 78 4 2 Machine Integration 79 4 2 1 General warnings 79 4 2 2 Tightening torque 81 4 2 3 Rotor integration st...

Page 5: ... or doubts regarding the installation procedures safety instructions or any other issue tackled in this manual please contact PARKER as well PARKER s responsibility is limited to its servomotors and does not encompass the whole user s system Data provided in this manual are for product description only and may not be guaranteed unless expressly mentioned in a contract DANGER PARKER declines respon...

Page 6: ...the highest range CAT I and CAT II meters must not be used on this product Allow at least 5 minutes for the drive s capacitors to discharge to safe voltage levels 50V Use the specified meter capable of measuring up to 1000V dc ac rms to confirm that less than 50V is present between all power terminals and between power terminals and earth Check the drive recommendations The motor must be permanent...

Page 7: ...vative direct drive solution designed for industrial applications NK Series brushless servomotors from Parker combine exceptional precision and motion quality high dynamic performances and very compact dimensions A large set of torque speed characteristics options and customization possibilities are available making NK Series servomotors the ideal solution for most servosystems applications Advant...

Page 8: ...ine Submarine Semiconductor Hand tool screwdriver Packaging machinery Robot applications Special machines Pump Compressor Partner of your integration Flexible organization and technical know how Assistance during mechanical integration Assistance during mechanical system tuning Frameless Servomotors Integration Fully optimized mechanical system ...

Page 9: ...bearings motor front flange are deleted and cylinder frame is simple Compact 40 smaller than standard cylinder Excellent control due to the high mechanical stiffness no coupling Lower weight ideal for robot application Pump Mains benefits Low cost Compact Simplified design Low temperature rise ...

Page 10: ... of the stator winding Class F according to IEC 60034 1 with potting Class F according to IEC 60034 1 Class F according to IEC 60034 1 with potting Altitude Up to 1000m IEC 60034 1 for higher altitude see 3 1 1 for derating Ambiant temperature 15 C to 40 C IEC 60034 1 40 C on request 0 C to 40 C for water cooled version IEC 60034 1 to avoid condensation see 3 5 Storage temperature 20 60 C Connecti...

Page 11: ...e DSL SIL2 encoder singleturn EKS36 Q Hiperface DSL SIL2 encoder mutiturn SKM36 R Hiperface encoder singleturn SKS36 128pulses S Hiperface encoder mutiturn SKM36 128pulses T Hiperface encoder singleturn SRS50 1024pulses U Hiperface encoder mutiturn SRM50 1024pulses V Endat encoder singleturn ECN1113 W Endat encoder multiturn ECN1125 X Commuted lines 10 poles 2048pulses Y sensorless series for 650S...

Page 12: ...e about the torque derating at low speed But in any case refer to PARKER technical department to know the exact values At low speed the torque derating is given by the following formula for an ambient temperature 40 C C C e temperatur Ambient C derating Torque 105 _ 145 100 _ At high speed the calculation is more complex and the derating is much more important Please refer to PARKER to know the pr...

Page 13: ... case refer to PARKER technical department to know the exact values At low speed the torque derating is given by the following formula for an water Inlet temperature 25 C C C e temperatur Inlet C derating Torque 95 _ 120 100 _ At high speed the calculation is more complex and the derating is much more important Please refer to PARKER to know the precise data of Torque derating according to water i...

Page 14: ...ion ti s So the rms torque Mrms can be calculated through the following basic formula Example For a cycle of 2s at 0 Nm and 2s at 10Nm and a period of 4 s the rms torque is Illustration Acceleration deceleration torque 10 Nm for 0 1 s Resistant torque 1 Nm during all the movement Max min speed 2800 rpm during 0 2 s Max torque provided by the motor 11 Nm rms torque 6 Nm The maximal torque Mi delive...

Page 15: ... speed presents a sufficient margin regarding the rms torque Mrms rms speed is calculated thanks to the same formula as that used for the rms torque The mean speed cannot be used in general mean speed is equal to zero Only use the rms speed Furthermore each Mi and speed associated Ωi of the duty cycle has to be located in the operational area of the torque vs speed curve Torque Mk Mrms Mn Mi Ωi Ωk...

Page 16: ...ER drive example The rated current provided by the AC890 drive depends on its rated power and its mode selection Vector mode is used for induction motors while Servo mode is used for brushless AC motors With NK motors the power is usually 37 kW the rated current corresponds to 100 Power of Drive AC890 kW 37 kW Mode Vector mode Servo mode Overload capability 150 during 60 s 200 during 4 s Illustrat...

Page 17: ...g 4 s The drive is set with Servo Mode We also can select the drive DIGIVEX 8 16 Â which delivers under 400 VAC 5 6 Arms as permanent current and 5 6 200 11 3 Arms as maximal transient current during 2 s NX620EAR ELECTRONIC DRIVE 1 DIGIVEX 7 5 15 et DIGIVEX 8 16 230V 400V 480V Torque at low speed Mo Nm 8 Permanent current at low speed Io Arms 5 31 Peak torque Mp Nm 26 7 Current for the peak torque...

Page 18: ...e sensitivity is equals to 1 47 Nm Arms Selection of the drive The drive has to provide a permanent current equals to 4 Arms to obtain 5 8 Nm In order to obtain an acceleration torque of 8 8 Nm the current will be of about 6 Arms This means that the drive has to provide at less 6 Arms as transient current Compared to the previous example n 1 it is now possible to decrease the size of drive Therefo...

Page 19: ...er than the permanent current But to avoid any overheating the following rules must be respected 1 The peak currents and peak torques given in the data sheet must never be exceeded 2 The thermal equivalent torque must be respected 3 1 3 3 If 1 and 2 are respected it can limit the peak current value or duration the peak current duration tp must be limited in addition accordingly to the following ta...

Page 20: ...haracteristics Torque speed current power The torque vs speed graph below explains different intrinsic values of the next tables Torque Peak Torque Permanent Low Speed Torque Rated torque Stall torque 3 rpm Rated Max Speed speed speed Rated Power ...

Page 21: ...NK310E_K 0 69 1 65 2 06 2 2 4 6 6 9 7 4000 NK420E_P 0 85 3 53 2 41 4 2 7 13 4 10 9 2300 NK420E_J 1 31 3 14 3 74 4 4 7 13 4 18 9 4000 NK430E_J 1 57 4 68 4 53 5 5 5 2 18 7 21 0 3200 NK430E_F 1 80 4 29 5 28 5 5 6 6 18 7 26 6 4000 NK620E_R 1 71 7 42 4 99 8 5 3 26 6 21 2 2200 NK620E_J 2 55 6 08 7 82 8 9 9 26 6 39 5 4000 NK630E_R 1 63 10 7 4 75 12 5 3 39 9 21 0 1450 NK630E_K 2 70 9 21 7 8 12 9 9 39 9 39...

Page 22: ... 6 8 9 9 26 6 39 5 5700 NK630E_V 1 53 10 8 2 4 12 2 6 39 9 10 5 1350 NK630E_R 2 64 9 34 4 2 12 5 3 39 9 21 0 2700 NK630E_N 3 18 7 6 5 3 12 7 9 39 9 31 7 4000 NK820E_X 2 93 14 7 4 8 16 5 2 49 9 20 3 1900 NK820E_R 5 29 12 9 9 1 16 11 0 49 9 43 2 3900 NK840E_Q 5 09 23 2 8 5 28 10 1 91 8 39 9 2100 NK840E_K 6 8 18 6 11 5 28 16 8 91 8 66 5 3500 NK860E_J 7 48 27 5 12 7 41 18 5 136 0 74 0 2600 Motor Rated...

Page 23: ...426 2 8 NK430E_L 90 9 1 450 4 22 21 0 426 2 8 NK430E_P 122 0 1 950 7 26 37 8 426 2 8 NK430E_V 244 0 3 900 29 00 151 0 426 2 8 NK620E_J 51 3 0 809 0 60 5 5 980 4 3 NK620E_R 95 7 1 510 2 24 19 2 980 4 3 NK620E_V 180 0 2 830 7 90 67 6 980 4 3 NK630E_G 52 1 0 861 0 34 3 5 1 470 6 0 NK630E_K 73 6 1 220 0 67 7 1 1 470 6 0 NK630E_N 91 6 1 510 1 12 10 9 1 470 6 0 NK630E_R 138 0 2 290 2 43 24 9 1 470 6 0 N...

Page 24: ...oment of Inertia J kgmm Water Flow l min NK310W_F 22 2 0 349 1 08 2 90 79 0 9 NK420W_D 24 0 0 375 0 49 2 14 290 1 3 NK430W_D 33 5 0 523 0 58 2 50 420 1 6 NK620W_C 33 0 0 517 0 24 1 91 980 1 6 NK630W_D 36 6 0 574 0 17 1 57 1 470 2 1 NK820W_G 34 8 0 544 0 14 1 22 3 200 1 6 NK840W_D 52 1 0 811 0 12 1 40 6 200 3 3 NK860W_D 82 8 1 280 0 16 2 04 9 200 5 0 ...

Page 25: ...curves are typical values They may vary from one motor to an other Caution The efficiency curves are given for an optimal motor control no voltage saturation and optimal phase between current and EMF Caution The efficiency curves do not include the losses due to the switching frequency ...

Page 26: ...ves of the motor NX110EAP Speed rpm Torque Nm 0 1000 2000 3000 4000 5000 6000 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 Efficiency 5 0 5 0 50 50 50 50 5 2 5 2 5 2 52 52 52 5 4 5 4 54 54 54 54 5 6 5 6 5 6 56 56 56 5 8 5 8 5 8 58 58 58 6 0 6 0 60 60 60 60 6 2 6 2 6 2 62 62 62 6 4 6 4 6 4 64 64 64 6 6 6 6 6 6 66 66 66 6 8 6 8 6 8 68 68 68 7 0 7 0 7 0 70 70 70 7 2 72 7 2 72 72 72 7 4 74 7 4 74 74 74 7 6 7...

Page 27: ...y curves of the motor NX210E Speed rpm Torque Nm 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 0 0 2 0 4 0 6 0 8 1 1 2 1 4 1 6 1 8 2 Efficiency 5 0 5 0 5 0 50 50 50 5 2 5 2 52 52 52 52 5 4 5 4 54 54 54 54 5 6 5 6 56 56 56 56 5 8 5 8 58 58 58 58 6 0 6 0 6 0 60 60 60 6 2 6 2 6 2 62 62 62 6 4 6 4 6 4 64 64 64 6 6 6 6 66 66 66 66 6 8 6 8 6 8 68 68 68 7 0 7 0 7 0 70 70 70 7 2 7 2 7 2 72 72 72 7 ...

Page 28: ...0 90 90 Constant efficiency curves of the motor NX420E Speed rpm Torque Nm 0 1000 2000 3000 4000 5000 6000 7000 0 1 2 3 4 5 6 7 8 Efficiency 50 50 50 50 50 50 52 52 52 52 52 52 54 54 54 54 54 54 56 56 56 56 56 56 58 58 58 58 58 58 60 6 0 60 60 60 60 6 2 6 2 62 62 62 62 6 4 6 4 64 64 64 64 6 6 6 6 66 66 66 66 6 8 6 8 68 68 68 68 7 0 7 0 70 70 70 70 7 2 7 2 7 2 72 72 72 7 4 7 4 74 74 74 74 7 6 7 6 7...

Page 29: ... 92 92 94 Constant efficiency curves of the motor NX620E Speed rpm Torque Nm 0 1000 2000 3000 4000 5000 6000 0 2 4 6 8 10 12 14 16 Efficiency 50 50 50 50 50 50 52 52 52 52 52 52 54 54 54 54 54 54 56 56 5 6 56 56 56 58 58 58 58 58 58 60 60 60 60 60 60 62 62 62 62 62 62 64 64 64 64 64 64 66 66 66 66 66 66 68 68 68 68 68 68 70 70 70 70 70 70 72 72 72 72 72 72 74 74 74 74 74 74 76 7 6 76 76 76 76 7 8 ...

Page 30: ...92 Constant efficiency curves of the motor NX820E Speed rpm Torque Nm 0 1000 2000 3000 4000 5000 6000 0 5 10 15 20 25 30 Efficiency 50 50 50 50 50 50 52 52 52 52 52 52 54 54 54 54 54 54 56 56 56 56 56 56 58 58 58 58 58 58 60 60 60 60 60 60 62 62 62 62 62 62 64 64 64 64 64 64 66 66 66 66 66 66 68 68 68 68 68 68 7 0 70 70 70 70 70 7 2 7 2 7 2 72 72 72 7 4 7 4 74 74 74 74 7 6 7 6 76 76 76 76 7 8 7 8 ...

Page 31: ... 66 66 66 6 8 6 8 68 68 68 68 7 0 7 0 70 70 70 70 7 2 7 2 72 72 72 72 7 4 7 4 74 74 74 74 7 6 7 6 76 76 76 76 7 8 7 8 78 78 78 78 8 0 8 0 80 80 80 80 8 2 8 2 8 2 82 82 82 8 4 8 4 8 4 84 84 84 8 6 8 6 8 6 86 86 86 8 8 8 8 8 8 88 88 88 9 0 9 0 9 0 90 90 90 92 92 92 92 92 92 94 9 4 94 Constant efficiency curves of the motor NX860E Speed rpm Torque Nm 0 500 1000 1500 2000 2500 3000 0 10 20 30 40 50 60...

Page 32: ...iency curves of the motor NX860V Speed rpm Torque Nm 0 500 1000 1500 2000 2500 3000 3500 0 20 40 60 80 100 120 Efficiency 5 0 5 0 50 50 50 50 5 2 5 2 52 52 52 52 5 4 5 4 54 54 54 54 5 6 5 6 5 6 56 56 56 5 8 5 8 58 58 58 58 6 0 6 0 60 60 60 60 6 2 6 2 62 62 62 62 6 4 6 4 6 4 64 64 64 6 6 6 6 6 6 66 66 66 6 8 6 8 68 68 68 68 7 0 7 0 7 0 70 70 70 72 7 2 7 2 72 72 72 74 7 4 7 4 74 74 74 76 7 6 7 6 76 ...

Page 33: ... for direct or indirect losses or damages due to the use of these data Tf Rotor shaft Dynamic Friction Kd Rotor shaft Viscous Damping Torque losses Tf Kd x speed 1000 Following data are indicative at the rated power Type Tf Nm Kd Nm 1000rpm NK110 0 050 0 001 NK205 0 050 0 010 NK210 0 055 0 024 NK310 0 067 0 033 NK420 0 090 0 114 NK430 0 106 0 149 NK620 0 106 0 196 NK630 0 131 0 245 NK820 0 160 0 3...

Page 34: ... 3 3 5 0 _ _ _ _ _ ph ph ph ph ph ph n ph n ph mech Ke Ke J R Ke Kt J R 2 _ _ 5 0 ph ph ph ph mech Ke J R With following values obtained from the motor data sheet Rph_ph resistance of the motor phase to phase at 25 C Ohm J inertia of the rotor kgm Keph_ph back emf coefficient phase to phase Vrms rad s The coefficient Keph_ph in the formula above is given in Vrms rad s To calculate this coefficient...

Page 35: ... therm Cth Rth _ 389 K kg J Kg copper K J copper Mass Cth With Rthcopper_iron thermal resistance between copper and iron K W Cthcopper thermal capacity of the copper J K Masscopper mass of the copper winding kg Hereunder is given an overall summary of motor time constants Type Electric time constant ms Mechanical time constant ms Thermal time constant of copper s NK110E 1 2 1 8 26 1 NK205E 2 6 2 2...

Page 36: ...s of both speed and current regulation loops presence of filtering or not load inertia resistant torque and type of sensor in use without external load neither external inertia nor resistant torque 3 2 10 Cogging torque The typical cogging for a NK series below is the maximum value peak to peak in N cm Motor Cooging Maxi N cm NK110 0 9 NK205 0 8 NK210 1 7 NK310 2 5 NK420 4 4 NK430 5 7 NK620 5 3 NK...

Page 37: ...nges the rated values will also change As long as the variation of the rated voltage remains limited for instance 10 of the nominal value it is possible to correctly evaluate the new rated values as illustrated below Example Extract of NK620EAR datasheet If we suppose that the rated voltage Un 400 Vrms decreases of 10 this means that the new rated voltage becomes Un2 360 Vrms Rated speed The forme...

Page 38: ...reover you will have to check that the drive still shows able to deal with the new maximum electric frequency Warning If the main supply decreases you must reduce the maximum speed accordingly in order not damage the motor In case of doubt consult us Rated power The former rated power Pn 2520 W obtained with Un 400 Vrms leads to the new rated power Pn2 given as follows n n n n U U P P 2 2 W Pn 226...

Page 39: ... recommendations of the IEC TS 60034 25 ed 2 0 2007 03 12 for motors without filters up to 500V AC See figure 1 Figure 1 Minimum Voltage withstands characteristics for motors insulations according to IEC standards At the top are the typical capabilities for the NK motors Note The pulse rise times are defined in accordance with the IEC TS 60034 17 ed4 0 2006 05 09 The NK motors can be used with a s...

Page 40: ...40 PVD 3664_GB_NK November 2016 Docx 3 3 Dimension drawings 3 3 1 NK1 ...

Page 41: ...41 PVD 3664_GB_NK November 2016 Docx 3 3 2 NK2 ...

Page 42: ...42 PVD 3664_GB_NK November 2016 Docx 3 3 3 NK3 ...

Page 43: ...43 PVD 3664_GB_NK November 2016 Docx 3 3 4 NK4 ...

Page 44: ...44 PVD 3664_GB_NK November 2016 Docx 3 3 5 NK6 ...

Page 45: ...45 PVD 3664_GB_NK November 2016 Docx 3 3 6 NK8 ...

Page 46: ...46 PVD 3664_GB_NK November 2016 Docx 3 3 1 NK3 W ...

Page 47: ...47 PVD 3664_GB_NK November 2016 Docx 3 3 2 NK4 W ...

Page 48: ...48 PVD 3664_GB_NK November 2016 Docx 3 3 3 NK6 W ...

Page 49: ...49 PVD 3664_GB_NK November 2016 Docx 3 3 4 NK8 W ...

Page 50: ...or bears the entire responsibility for choice of the key components such as bearing encoder electric connection and mechanical parts design Warning A grade A motor according to IEC 60034 14 well balanced may exhibit large vibrations when installed in situ arising from various causes such as unsuitable foundations reaction of the driven motor current ripple from the power supply etc Vibration may a...

Page 51: ...to check the arrangement Warning When motor runs the temperature increases up to 120 C on the rotor so use springs or spring rings on one bearing to accept shaft dilatation and to create a preload Warning When motor runs temperature increases up to 120 C on the rotor so we recommend to use bearings with C3 clearance Spring ring Deep groove ball bearing free in translation Deep groove ball bearing ...

Page 52: ...e the force applied it is possible to heat the rotor up to 130 C maxi Warning The rotor must not touch the step D2 to avoid shaft flexion Moteur D1 D2 max D3 F maxi kN NK110 9 s6 11 9 0 02 0 02 38 NK210 12 s6 13 5 12 0 02 0 02 40 NK310 14 s6 17 5 14 0 025 0 02 13 NK420 20 s6 24 20 0 025 0 02 53 NK430 20 s6 24 20 0 025 0 02 80 NK620 26 s6 32 26 0 025 0 02 75 NK630 26 s6 32 26 0 025 0 02 113 NK820 4...

Page 53: ...less steel Re 290 D2 mini D3 mini Ø Stator L mini NK3 62 0 120 0 150 62 0 060 0 090 62 0 080 0 110 70 60 5 62 0 02 0 05 17 NK4 80 0 140 0 170 80 0 060 0 090 80 0 090 0 120 90 79 80 0 02 0 05 22 NK6 111 0 175 0 210 111 0 060 0 095 111 0 105 0 140 120 107 111 0 02 0 05 25 NK8 143 0 215 0 255 143 0 070 0 110 143 0 130 0 170 155 138 143 0 02 0 06 29 Warning D3 and L give the place for the end winding ...

Page 54: ...54 PVD 3664_GB_NK November 2016 Docx 3 4 4 3 Water cooled stator interfaces Motor D1 mm NK3 82H8 NK4 100H8 NK6 131H8 NK8 163H8 D1 30 2 ...

Page 55: ...ter inlet and outlet must be aligned with the cables inlet to guarantee an optimized cooling circulation Motor O ring diameter mm Cross section mm Material Hardness Working temperature C PARKER part number NK3 75 92 1 78 NBR 70 shores 25 120 5340P0069 NK4 94 97 1 78 NBR 70 shores 25 120 5340P0081 NK6 126 72 1 78 NBR 70 shores 25 120 5340P0077 NK8 151 64 1 78 NBR 70 shores 25 120 5340P0093 3 4 5 2 ...

Page 56: ...al cross section of earthing conductor Sp mm S 16 S 16 S 35 16 S 35 0 5S 3 4 9 Minimum clearances for insulation and creepage distances Depending on the pollution degree and the voltage in use the minimum clearances for insulation and creepage distances must meet the standard EN 60664 1 It is the integrator s responsibility to take the needed actions to comply with these distances or by adding pro...

Page 57: ...2 5 3 2 100 0 25 0 71 1 1 4 1 8 2 2 2 2 4 3 3 8 160 0 32 0 8 1 1 1 6 2 2 2 2 5 3 2 4 5 200 0 42 1 1 4 2 2 5 2 8 3 2 4 5 6 3 250 0 56 1 25 1 8 2 5 3 2 3 6 4 5 6 3 8 320 0 75 1 6 2 2 3 2 4 4 5 5 6 3 8 10 400 1 2 2 8 4 5 5 6 6 3 8 10 12 5 500 1 3 2 5 3 6 5 6 3 7 8 10 12 5 16 N B Please refer to the standard EN 60664 1 for more information 3 4 10 Ground continuity compliance The complete motors must m...

Page 58: ...rd IEC 60034 1 3 4 13 EMC Directive cf guide lines 2004 108 CE and standard IEC 61800 3 It is the integrator s responsibility to ensure that the complete motor and drive in use comply with the EMC directive 3 4 14 Other requirements The previous list is not exhaustive and all the other requirements in the regulation standard and directives must be checked by the integrator ...

Page 59: ...5 cm NK210 270 cm NK310 265 cm NK420 395 cm NK430 580 cm NK620 630 cm NK630 935 cm NK820 810 cm NK840 1620 cm NK860 2430 cm Caution the ambient air temperature shall not exceed 40 C in the vicinity of the motor flange Warning A significant part of the heat produced by the motor is evacuated through the flange if the air is not able to circulate freely around the motor if the motor is mounted on a ...

Page 60: ...y occur when the temperature gradient between the air and the water becomes significant Condensation is also linked to hygrometry rate To avoid any issue we recommend Twater Tair 2 C The motor can be used with an ambient temperature between 27 C to 40 C with a high water temperature but with derating If inlet water temperature becomes higher than 25 C derating factor must be applied according to 3...

Page 61: ...f the user Some additives like TYFOCOR or GLYSANTIN G48 correctly used have demonstrated their ability to prevent corrosion in a closed cooling circuit For example Glysantin G48 recommendations are Water hardness 0 to 20 dH 0 3 6 mmol l Chloride content max 100ppm Sulphate content max 100ppm Caution The water quality is very important and must comply with supplier recommendations The additive quan...

Page 62: ...losses power to evacuate by the chiller depend on the efficiency and motor power Pn 1 ρ 1 Pc With Pc Power to evacuate by the chiller kW Pn Nominal motor power kW motor efficiency at nominal power Refer to the respective motor data sheet for nominal power efficiency and water flow Chiller pump must provide water flow through motor and pipe pressure drop Inlet temperature must be inferior to 25 C E...

Page 63: ...9 8 45 45 9 47 7 50 0 52 9 56 0 50 51 0 53 0 55 6 58 8 62 2 55 56 1 58 3 61 2 64 7 68 4 60 61 2 63 5 66 7 70 5 74 7 65 66 4 68 8 72 3 76 4 80 9 70 71 5 74 1 77 8 82 3 87 1 75 76 6 79 4 83 4 88 2 93 3 80 81 7 84 7 89 0 94 1 99 5 85 86 8 90 0 94 5 99 9 105 8 90 91 9 95 3 100 1 105 8 112 0 95 97 0 100 6 105 6 111 7 118 2 100 102 1 105 9 111 2 117 6 124 4 110 112 3 116 5 122 3 129 3 136 9 120 122 5 12...

Page 64: ...f the water as coolant J kg K Cp depends on the glycol concentration please see below Thermal specific capacity Cp according to glycol concentration and temperature We have considered an average temperature of the coolant of 30 C Glycol concentration Average temperature of the water as coolant C Thermal specific capacity of the water Cp J kg K 0 30 4176 30 30 3755 40 30 3551 50 30 3354 ...

Page 65: ... its obstruction We recommend 0 1mm filter This section shows typical water cooling diagram Recommendations Check inlet temperature Chiller or Exchanger Pump Servomotor Recommendations Check water flow at this point Check inlet temperature Chiller or Exchanger Pump Servomotors Water flow regulators Water flow meter Water flow meter There is no recommendation on water inlet and outlet position ...

Page 66: ...66 PVD 3664_GB_NK November 2016 Docx To other s device s Chiller or Exchanger Pump Servomotor No Parallel Circuit without flow control Pump Servomotors No Serial Circuit ...

Page 67: ...urrent limitations 3 6 1 Alarm tripping with PTC thermistors One thermal probe PTC thermistors fitted in the NK servomotor winding trip the electronic system at 150 5 C for class F version When the rated tripping temperature is reached the PTC thermistor undergoes a step change in resistance This means that a limit can be easily and reliably detected by the drive The graph and tab below shows PTC ...

Page 68: ...ng to an approximately linear characteristic The required temperature limits for alarm and tripping can be set in the drive The graph below shows KTY sensor resistance vs temperature for a measuring current of 2 mA Warning KTY sensor is sensitive to electrostatic discharge So always wear an antistatic wrist strap during KTY handling Warning KTY sensor is polarized Do not invert the wires Warning K...

Page 69: ...zes Some drives have cable limitations or recommendations please refer to the drive technical documentation for any further information Cable selection At standstill the current must be limited at 80 of the low speed current Io and cable has to support peak current for a long period So if the motor works at standstill the current to select wire size is 2 x 0 8 Io 1 13 x Io Sizes for H07 RN F cable...

Page 70: ...e section selection 35mm for a 3 cores in a cable tray at 30 C max You also have to respect the Drive commissioning manual and the cables current densities or voltage specifications 3 7 2 Conversion Awg kcmil mm Awg kcmil mm 500 253 400 203 350 177 300 152 250 127 0000 4 0 212 107 000 3 0 168 85 00 2 0 133 67 4 0 1 0 106 53 5 1 83 7 42 4 2 66 4 33 6 3 52 6 26 7 4 41 7 21 2 5 33 1 16 8 6 26 3 13 3 ...

Page 71: ...re 3 7 5 Motor cable The motor cables are flexible so cables can take any direction The electrical connection on motor in kit version is realized by high performance cable The motor cable section depends of the motor current level Please refer to the outline drawing to know the cross section Caution The motor cables are designed for high current density so cable surface can reach temperatures exce...

Page 72: ...ck wires with motor wires to avoid EMI electromagnetic interference EMI risk to set default the drive So careful to separate resolver and motor wires 3 8 1 Resolver 3 8 1 1 Overview A resolver is an angular position sensor It is used to determine rotor position Its signals are processed by the drive in order to control the stator currents the speed and the position The resolver is a high precision...

Page 73: ...er accuracy 10 maxi Ratio 0 5 5 Output impedance primary in short circuit whatever the position of the rotor Typical 120 200j Ω Typical 95 180j Ω Dielectric rigidity 50 60 Hz 500 V 1 min Insulation resistance 10MΩ 100MΩ Rotor inertia 6 g cm 30 g cm 123 g cm Operating temperature range 55 to 155 C Rotor is clock wise rotation viewed from mounting flange end F view Resolvers are single pole pair res...

Page 74: ...1R0xxx CS5UA1F1R0xxx CS1UA1F1R0xxx For other drive you can assembly cable and plug by soldering with part number on the tab below Feedback Sensor Cable reference Plug reference Resolver 6537P0047 220065R4621 3 8 1 5 Resolver setting During the setting procedure it is strictly necessary to respect the 3 following conditions The rotor must be able to rotate freely The maximum friction torque on the ...

Page 75: ...75 PVD 3664_GB_NK November 2016 Docx 3 8 1 6 Resolver drawings Resolver part number 220005P1000 Resolver part number 220005P1001 Resolver part number 220005P1002 ...

Page 76: ...76 PVD 3664_GB_NK November 2016 Docx Resolver part number 220005P1003 ...

Page 77: ...ovember 2016 Docx 3 8 2 Encoder Instead of a resolver we can provide an encoder Incremental encoder incremental encoder with 10 poles commutations channels Hiperface single turn or multiturn Endat single turn or multiturn ...

Page 78: ...ackaging Warning In case of damaged material during the transport the recipient must immediately make reservations to the carrier through a registered mail within 24 h 4 1 2 Handling Kit motors are delivered in two part rotor and stator divided DANGER Do not handle the stator with the help of electrical cables or use any other inappropriate method Use non magnetic material to handle rotor 4 1 3 St...

Page 79: ... routine tests exemples IEC60034 Attention Rotor has strong permanent magnets It creates strong attraction force that can crush fingers or hands Firmly hold the rotor and move away all magnetic parts Caution Clean the working area of all ferromagnetic part such as tools screws steel particles Use wood table to work or make machine assembly Caution Anyone wearing pacemaker hearing aid watches magne...

Page 80: ...ion Fr is proportional with axial offset x Fr N Kr x mm Motor Fa N Kr N mm Xmax mm NK110 15 300 0 4 NK210 21 1000 0 4 NK310 33 1600 0 4 NK420 60 2000 0 4 NK430 60 3000 0 4 NK620 83 3000 0 4 NK630 83 4500 0 4 NK820 121 3330 0 5 NK840 121 6660 0 5 NK860 121 10000 0 5 F a Rotor Stator Fa Fr Rotor Stator x Fr Magnetic attraction ...

Page 81: ...htening torque Screw diameter Tightening torque M2 x 0 35 0 35 N m M9 x 1 25 31 N m M2 5 x 0 4 0 6 N m M10 x 1 5 40 N m M3 x 0 5 1 1 N m M11 x 1 5 56 N m M3 5 x 0 6 1 7 N m M12 x 1 75 70 N m M4 x 0 7 2 5 N m M14 x 2 111 N m M5 x 0 8 5 N m M16 x 2 167 N m M6 x1 8 5 N m M18 x 2 5 228 N m M7 x 1 14 N m M20 x 2 5 329 N m M8 x 1 25 20 N m M22 x 2 5 437 N m M24 x 3 564 N m Warning After 15 days check al...

Page 82: ...n step by step Step 1 Push down the rotor on the shaft with a press Maximum press force is described in 3 4 4 1 Make sure you have followed the shaft interface instruction see 3 4 4 1 Rotor Follow interface recommendations chamfer at 30 to have an easy mounting ...

Page 83: ...otors are not balanced before delivery The electro spindle manufacturer must balance the complete spindle rotor shaft bearings and rotor using an appropriate method for example by removing or add material from shaft Caution In case of drilling be careful about shaving of metal with magnetic part We recommend to add material screws Caution Balancing must never be made by removing material from the ...

Page 84: ...cooled stator integration step by step Step 1 Increase the housing temperature to 250 C to 300 C Step 2 Push down the stator in the water jacket Make sure you have followed the housing interface instruction 3 4 2 2 Chamfer at 30 to have an easy mounting ...

Page 85: ...85 PVD 3664_GB_NK November 2016 Docx Step 3 After fitting let stator housing go back to ambient temperature ...

Page 86: ... for standard water jacket in chapter O Ring specification 3 4 5 1 Step 2 Prepare the cooling jacket for his integration Water inlet and outlet must be aligned with the cables inlet Make sure you have followed the cooling jacket interface instructions The 4 O rings must be greased with an ordinary lubricant before mounting to avoid damages and leakages ...

Page 87: ...olutions depends of the weight of the rotor 1st solution for light motor Step 1 Screw the stator onto the front flange Put the stator onto workbench Put spring ring Prepare rotor fit onto rear flange Step 2 For an easier assembly use an extra shaft to guide rotor on stator to avoid gluing due to magnetic parts ...

Page 88: ...88 PVD 3664_GB_NK November 2016 Docx Step 3 Danger do not put your hand inside the motor during way down Make sure you have done chamfers at 30 ...

Page 89: ...664_GB_NK November 2016 Docx Step 4 Screw the rear flange on the stator to close motor Step 5 Last step is the encoder or resolver mounting Caution After 15 days check all tightening torques on screws and nuts ...

Page 90: ...16 Docx 2nd solution for heavy motor Step 2 For an easier assembly use extra smooth and thread bars outside of the stator to guide and push rotor onto the stator Step 4 Caution do not put your hand inside the motor during way down ...

Page 91: ...91 PVD 3664_GB_NK November 2016 Docx Step 5 Make sure the rotor is well setting up in place Step 6 Unscrew the mobile flange onto the rear flange Fit rear flange ...

Page 92: ...92 PVD 3664_GB_NK November 2016 Docx Step 7 Last step is the encoder or resolver mounting Caution After 15 days check all tightening torques on screws and nuts ...

Page 93: ...act between rotor and stator do not hold the stator by its cables Do not mismatch the rotor stator and resolver Connect the resolver according to the drive user manual The resolver is not watertight Protect it against oil spray Attention Do not mix resolver wires with motor wires to avoid EMI electromagnetic interference EMI risk to set default the drive So careful to separate resolver and motor w...

Page 94: ...r rotor must be free in rotation The torque of maximum friction on the rotor should not exceed 1 of torque permanent motor The coolant cooling system must be under operation The operator must have access to the resolver stator and be able to turn it manually and then lock it in place with lock screw To refer to the drive manuals for the details of the setting procedure ...

Page 95: ... commissioning manual and with recommended cables Caution Section motor cable is lower than commissioning section cable between motor and drive due to high performance motor cable design Do not take the same cable section than motor Danger The servomotor must be earthed by connecting to an unpainted section of the motor Caution The motor cables are designed for high current density so cable surfac...

Page 96: ... shipped without a ground cable It is mandatory to connect a green yellow ground cable between the motor frame and machine The ground cable cross section must be the same as the power cable cross section Before applying power Check there is no damage on winding or cable due the mounting by a dielectric test Check all external wiring circuits of the system power control motor and earth connections ...

Page 97: ...edback wires with motor wires to avoid EMI electromagnetic interference EMI risk to set default the drive So careful to separate resolver and motor wires Warning Always wear an antistatic wrist strap during encoder handling Warning Do not touch encoder contacts risk of damage due to electrostatic discharges ESD Danger before any intervention the drive must be stopped in accordance with the procedu...

Page 98: ...needed in accordance with regulations The continuity of the grounding circuit On each complete unit the resistance between any conductive point and the grounding conductor shall not exeed than100m This test shall be performed before the dielectric tests EN60204 1 Safety of the machine Below exemples of dielectric tests performed on each complete unit Sefelec SMG50 can be used for a 400V supply Die...

Page 99: ...er a max 50V DC is 50 MΩ Between the phase and the casing Between the thermal protection and the casing Between the brake coil and the casing Between the resolver coils and the casing You find that the motor speed is drifting Reset the offset of the servoamplifier after having given a zero instruction to the speed setpoint input You notice that the motor is racing Check the speed set point of the ...

Page 100: ...tion from the brake mechanical jamming Defective coupling Loosening of several pieces Poor adjustment of servo drive or position loop check rotation in open loop The motor is warmer on its top Air bubbles can be stocked in the water cooling circuit You need to purge the circuit or to double the water flow rate during 10 minutes to remove the air bubbles ...

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