SR-721RD / RM / RN
Contents
1. 9 WHEL 5 L 2 5mm 2 M3X5 X 2 M3X16 WA 7 Checking the Electric Signal PM signal When the scale SR 721RD SR 721RN SR 721RM and the cable unit have the COMBINATION NOs which agree with each other the scale and the head amplifier are electrically calibrated However be sure to check the PM signal after 15 to 20 minute operation after mounting For details of PM signal checking refer to the manual of the detector if the PM signal ripple c d is 0 025 or less the PM adjustment is not required If not perform the adjustment to reduce the ripple to 0 025 or less For the procedure of adjustment refer to the manual of the dete2. COMBINATION NO SERIAL NO COMBINATION NO SERIAL NO 7 e HK1 c Dc RM15TJD 12S 24 CABLING Head connecting cable for SR 721RN Option e Four cable types of varying lengths are available as follows HK 03CR 3mv9 8 HK 05CR 5m 16 4 HK 010CR 10m 32 8 HK 015CR 15m 49 2 e Ifthe head connecting cable and the scale unit are shipped separately electrical adjustment of the head amplifier is necessary Refer to Checking the Electric Signal and perform the adjustment after mounting Thecableunitand scale unit have been electrically calibrated only ifthey bear the same COMBINATION No Check the No before
3. gt WD40 NOTES USERS Read all instructions carefully before starting use Save this MANUAL for future reference SR 721RD SR 721RM and SR 721RN are linear Magnescale models of semi uniti
4. pum i 2 Absolute Zero Point Detection The scale has a built in absolute zeropoint which enables either uni directional or bi directional detection depending on the detecting system ofthe detector used The combination of scale and detector determines the type of absolute zero point detection as follows DETECTOR Absolute zero pont Absolute pani pem MODEL MODEL meu pee zero point detection SR 721RN ee HIROSE 12P connector mem soem use Head __ MSD 9037RG Bidreciona 15 SR 721RD MD20 1G5BR Uni directional D sub connector X Do not use 2 1 Uni directional absolute zero point detection In the uni directional absolute zero point detection the position of the absolute zero point depends on the moving direction of aslider In this detection the absolute zero point mark and the absolute zero point signal match only when the slider moves to the designated direction When a standard type is used the mark and signal match when a scale or a slider moves in the direction indicated by or respectively in the figure below When a reverse direction type is used they match when a scale or a slider moves in the direction indicated by in the figure below 4 Connection of scale
5. 3 300mm 9mm 240 19mm 350mm 50mm 50mm 4 MOUNTING 1 Mounting Position Mount the scale nearest to the cutting tool position on the machine Keep strong magnetic source such as a magnetic stand at least about 10mm 0 397 away from the scale e Use the scale where it is free from direct sunlight a powerful heat Do not apply undue force to the scale Provide protective cover where necessary 2 Mounting Direction e Mount the scale like or B as shown below Q X O 4 x A B C D Position A is especially preferable as this positon will mininize the exposure to chips and coolant Use position B when position A is impossible Do not use position C because oil and chips may enter the
6. 248 BUILT IN ABSOLUTE ZERO POINT 1 Nomenclature SR 721RD TES 500 n Reverse L Detecting direction T name bos of the absolute zero point Effective length Right effective length mark Absolute zero point mark Left effective length mark S 1 1 Effective length and absolute zero point are indicated by the label sticked oh Z1 Lero Point Ww No 1 Slider Effective length mm Position of the absolute zero point mm 1 Position of the absolute zero point 1 R means Right and indicates the distance from the right effective length mark from 0 to effiective length 2 2 L means Left and indicates the distance from the left effective length mark from 0 to effective length 2 1 3 The center absolute zero point is indicated by C 1 2 Detecting direction is shown by the pattern of the absolute zero point mark Standard type Reverse direction type 2 WAS 1
7. P P M6 X35 4 M6 X12 3 X16 2 2 M3X25 2 4 12 5 d ou LE 5X45 3 5 10 2 4 0 1 0 5 0 6 0 8 1 0 1 2 1 4 7 5 M6 2 b M6 2 M4 37 7 37 8 1 38 SPECIFICATIONS Effective length 100mm to 1100mm 3 94 to 43 31 1200mm to 1800mm 47 24 to 70 87 Overall length 300mm or shorter Effective lingth 160mm 6 30 350mm or longer Effective length 240mm 9 45 Max slide length 300mm or shorter Effective length 28mm 9mm 0 357 at the left 19mm 0 757 at the right 350mm or longer Effective length 100mm 50mm 1 97 at the left 50mm 1 977 at the right Position of zero point Any point on the effective length the position can be selected 1mm increment The detector connected determines the zero point detection direction either uni or bi directional Accuracy at 20 C 68 F 3 3 1000 um
8. 1 7 7 E o memen SR 721RN MSD 9036RW MSD 9037R SR 721RM A O x MSD 9037RG 15 SR 721RD MD20 1G5BR Dsub 1 2 1 1 9O
9. SR 721RD SR 721RN HK COMBINATION NO e e
10. e A C A B 01mm C 0 05mm B C 24 0 2mm B C 0 05mm et ES X M6X35 cn Hee 4 6 12 ROTH MH 22k M6X12 1 2 5X45 eM HH 2 5X10 Hee 2 3 GB M4X12 eee 2 4 t 0 1 0 5 0 6 0 8 1 0 1 2 1 4 mm OT 7 5 M6 25 6 M6 2 35 35 lo M6 5 MSA niente 1 25 5 1 5 C en ee 1 1 5 0 01V IMHz ee 12 12 4 Protection Cable and Connec
11. 5 5 X45 5X10 Fig 4 BM4X12 SR 721RN 15 14 2 M6 12 2 M6 2 M6 Fig 3 abcd 5 M3 4 C Na 2 ARR M3 4 Fig 4 gt V 4 5 2 M6 X12 THE 6 Mounting Mount the scale loose onto the machine with 4 pieces of M6 x 35 screws and leave it for about 30 minutes till it gets the same temperature as the machine Then tighten the screws to fit the scale firmly to the faces A and B Fig 2 2 M6x12 Mount the slider next Fig 2 3 4 Check a g5 gauge pin passes through the tw
12. a b c d 0 1mm 1 0 2 0mm 1 C 0 0 1mm 3 1 0 57 12 2 0 0 1mm 0 0 1imm M3 4 L 25mm Fig 4 6 4 8 645
13. 29 e SR 721RN EFFECTIVE LENGTH 300 MM OR LESS 32 SR 721RN EFFECTIVE LENGTH 350 MM OR 33 e SR 721RM EFFECTIVE LENGTH 300 MM OR LESS 36 SR 721RM EFFECTIVE LENGTH 350 MM OR MORE 37 SPECIFICATIONS Gi ncn ur eret Ge 39 ACCESSORIES MER EP 39 SR 721RD SR 721RN SR 721RM AT SR 721RD SR 721RN SR 721RN HK e SR 721RM 800mm 300mm SCALE
14. 8 09 9 py flO eloH Bununow SN see Or wey uibus ce 0 02 a 40 N g N 5 4 S R RB 3 H 3 Sk 4394 r 0 0 3 ii ER RN e od R 1005 eip 0 5 1 8 z9 0 9VOlV 0 820 v HBug 841293 uel vid YOO AG S OiId ejou 6E 0 01 4vS VV 6E Gor Vv Sv 6 02 BUET HUN JHON 8 6 HLON31 AL9 SNOISN3IWIG dISLTO NHLZZ HS 37 535 100mm 1100mm 50mm 8L 950mm 1200mm 1800mm 100mm amp fir 160 300mm 240 350mm 28 9mm 19mm 300mm 100 mm S50mm S0mm 350mm 20 C 3 50351 1 mm 121 x10 5 7C 5 40 C 10 50 17 B 1 1mm
15. t9 0 820 0 2 eL 10 S8 C E ZS deaq 0 01 1005 BIP S 0 S 0 BID 0 G70 p uiBue 8429 3 0101021 gt 200 99 8 022 UiBue uoitd ejou VS MV6E Sb 6 0b2 uibue IIBJ9AO yew jurod 0197 HUN IHON 822 HLON313A1 03443 SNOISNAWIG WHEZZ HS 33 6001 9 0 2191 Foz we 04 N L 4 XOL pe bey MSv Z L z G ALEF YLAGAN M8 r c E 32 OAH c sS WO 6 Ol 09 6 8 FS 4 66 HF f 46 NUL 2785 34 RM ERUS UIWOOE 27 T Tp 000089 Vg E MEX LO M 4 164 cse dgF dd19IWH amp 01 9 0 U L 4 XOL 90 4 2191 9 HEMI AL oria ii MAA AGO 9 Er LES 014i 4 9 KE 901 000 FH E AAMEN SERI 4 6 E 9 5 CrYgumuose S 68 ps ES 1 45 35 8 qe2 PiIP
16. Gee eis os 1 0 0 1 20 0 S 0 pis 1 9070 8 1 eu 800 0 576 0 so 19 90 0 79 61002 820 20 2 4 0 1 96 eiou jamoa 46V 0 8 2 8 2 5 24 4e Jew julod 019 i 0701 Dune eui wt 2 OV 1095 Gp 0 S LO 0 g20 96 2 94 6 1 6 209 viS S ejou Bununow GL 6 9 09 WUT IIBJ8AO 5531 18 006 HLON313A1L03443 SNOISNAWIG 1 INHLZZ HS 820 0 0 LS 32 66 6 98 22 2 9 99 5 parowy 81BId 100 68 V G 9v uneg 810U 40 57 08 Julod 0122 1 10 86 0 X 82 0 6 9 giBId 100 1600 0 1 20 0 9 0 pis 1 9070 8 10017 91989 Jojonpuo2 01 9 G22 0002 aed 100 18190 69 0 91 Z 4 _ 91U89 J8DIIS 8000 SU6 0 PERDE N AS SIOy elou 46V 0 8 2 2
17. 16 MS 22 2 Reverse direction type The absolute zero point is detected in the reverse direction against that of the normal type When a scale moves and a slider is fixed the absolute zero point mark passes the center of the slider from right to left When a scale is fixed and a slider moves the center of the slider passes the absolute zero point mark from left to right Absolute zero point mark of reverse direction type When the absolute zero point is detected in the or direction the mark and signal match When a scale or a slider moves in the reverse direction the mark and signal do not match Do not use this direction for detecting the absolute zero point 4 to 10mm 0 16 to 0 39 2 2 Bi directional absolute zero point detection standard type only When a slider passes the absolute zero point mark a pulse of 16ms is generated The direction is not specified 23 SR 721RN 4 HK1 03CR 3m HK1 05CR 5m HK1 10CR 10m HK1 15CR 15m 7
18. 2 44 GUL 245 27 82 2188 8IdBO parowy 70 0 0 1 20 0 8 0 PIS 1 90 0 9 91489 10j2npuo2 01 aooor 676 0 b6 E UUUO0L jo 1G G 0bL 90 oe 9 922 0002 wey eiou 6 0 8 O z aY OFEN SPAS El CO 1 92 OL o b yew 0187 ajoy daed 0 01 486 2 84 1005 stro g 10 ul6ue 200 19 9 0 Obt ubue yond ejou 46 0 01 Cel Vip E 9 091 ulug 5997 L8 HLON313A1103343 SNOISNAWIG AGISLNO GHLZZ HS 28 82 2 8S 19 100 19487 g L S OP unieq 9100 860 5 910W JO G LE AUUUO08 SI NBuel jJ JUIOd o1ez 101 56 0 82 0 6 20 eyed 100 J81U89 T 380004 esos an X geAlio9 ul 1 20 0 0 1 20 0 8 0 259 6 09 pis 1 90 0 9 4 1291 5 10jonpuo2 01 000 976 0 10128UU0D uld GI qng Q Jajuad Japs gjeld 100 6ununow eju ENDE 95
19. SR 721RD SR 721RN Head connecting cable option SR 721RM HK1 HK1 CABLE HEAD AMP FEATURE Unitized scale and head makes it easy to mount in correct alignment The SR 721RD and SR 721RN have a scale cable terminated with a connector and can be connected directly to a detector with the mating connector Theprovided HK cable may be used to connect the SR 721RN to the detector which requires the HK cable unit including the head amplifier s TheSR 721RM has ascale cable with the head amplifier and can be connected to the detector which requires the head amplifier Compact design e Thecenterfoot plate is mounted for the scale of effective measuring length over 800mm 31 5 DETECTOR MD20 1G5BR MSD 9036RV RW MD30 1G5C MSD 9037R RG NAMES OF PARTS SR 721RD ORR M6X35 4 5 M3 4 SERIAL COMBINATION No 9 5 4 8 ORAR M6X12 2 5 4 5 9
20. 2 15 1 Konan Minato ku Tokyo 108 6018 Japan SR 721RD RM RN 2010 4 2 995 607 07 Printed in Japan 1998 Magnescale Co Ltd
21. L Effective measuring length mm 0 00012 0 000003 x L inch P P L Effective measuring length in inch Tolerance in mounting parallelism 0 1mm 0 004 Thermal expansion coefficient 11 1 x 10 C Operating temperature 5 to 40 C 23 to 104 F Storage temperature 10 to 50 C 14 to 122 F Absolute zero point One point built in the scale Zero point position Set within 1mm of a customer specified position Zero point accuracy 4 P P ACCESSORIES M6 x 35 Hexagon socket head SCrew 4 x 12 Hexagon socket head cap screw 3 x 16 Hexagon socket head SCrew 2 Not used x 25 P Phillips head small screws 2 Not used x 12 B Phillips head small screwS 5 85 x 45 Knock pins 1 for gauge pin i 3 p5o TO Knock plns uis etie tene 2 Liners t 0215 0 5 0 6 0 8 1 0 4 2 1 4 ene ciens 7 Spring washers for SCTews 2 Flat washers for MG Screws en ne eno arci ee EPA 2 Flat washers for 4 screws ik 3 Cable holders big for armored cable 3 Cable holder small for armored cable 1 Not used T 108 6018 2 15 1 18 Magnescale Co Ltd Shinagawa Intercity Tower A 18F
22. M6 x 12 2pcs hex socket head cap screw Slider Head carrier D o4 5mm 0 18 dia hole for g5mm 0 2 dia dowel Bracket Armoured cable 15 head amplifier Connector Male Connector Female Head cable 1 e 10mm e e 2 X z 7 x Jor A B C D B A D
23. unit Position D should be avoided for ease of mounting and maintenance 3 Setting of Scale Travel The range between the two effective length marks is the effective length of the scale Decide the mounting position of the scale so the center of the slider moves within this range Never force the slider to exceed the safety margin provided at each end of the scale or the scale will be heavily damaged Safety margins Scales with effective length shorter than 300mm 11 81 9mm 0 35 at the left 19mm 0 75 at the right Scale with effective length longer than 350mm 13 78 50mm 1 97 at the left 50mm 1 97 at the right 11 4 OC 5 M6X15 Fig 1 6 M6 X15 E C
24. use COMBINATON SERIAL No Be sure to check the calibration referring to 7 Checking the Electrical Signal e Incase the scale or HK1 cable needs to be repaired reolaced contact you Magnescale Co Ltd distributor Armored cable e COMBINATION NO HA 15 Head AMP Female connector RM15TJD 12S Hirose 25 EKOS O sk 2191 fa 7 SHINE GLP h VE 6 406 S6FIWWOOLZ Ee 457 gb g ARH 26 2 0902 G a FKH G Xi v D FHE 5 ED s 8 QE UL OL 0914 3 6 E FS 4 3 6 amp ps XE 1046 GUL HS 26 0 05 ORBI S E 9 PUUE a vas fF f Ep YI Gwe T 100010098 g K E 9 Ni sz T Sy d 4 X0 L S 0 MEX PER drs raf HALA ESLAAqnSQ 4 lt 8 EH Aal L 6 lt 9 MEM 20 2 e 28 g o a 5 G e 4 Ol v e s We 9 2 FRE 0 002 8 6 E 0l 3 E 95 Trawmwocge eg pe Xt
25. 16 0 1 0 0 0 1 20 0 6 0 6nid 2 _ pis 1 90 0 9 1 dzt Qd LSt Wd 9 q82 01 Gv6 e unugot jo UL 104 E 96 82 0 40 2 lou jamoq 6 0 8 458 9 0b yew jutod 0197 daaq 0 0 paoe4 OP 1045 Gp 0 G 0 BID 0 6 40 uiBue S6 2 64 09 18 S s ajoy ve Vip 69 091 BUAT 1121840 SS 1 HO 418 WWOOE HLON313A1103343 SNOISN3MWIG 5110 NLZZ dS 36 paiouny 100 191082 28 1 99 wb OS S JO G 08 Si 11109 oJez 16ju62 20 9IBIUnOW ejou SE 0 EIp 82 0 6 20 100 Blu8O 21 421 15 1 1 20 0 9 0 1ojonpuo2 01 1 90 0 9 1 992210004 1972 07 ejejd 100 J8IU82 Sh6 0 291099 5 6970 91 j a 6L 0 8 baz
26. 5 5 Dsub 35 mounting holes 4pcs hex Socket head CaD 5 Effective length mark 5mm dia dowels For gauge pin mounting screws 4 pieces to mount jig block Absolute zero point mark Q Name plate Hole for 5mm knock 4 8mm bottom hole Q Jig block Mounting holes For M6 x 12 2pcs hex socket head cap screw Slider Head carrier Do4 5mm 0 18 dia hole for a5mm 0 2 dia dowel Bracket Armoured cable D Sub connector Head cable SR 721RM ORR KERFI 6 X35 4 OBR ROS M3 4X SERIAL No No 9 5 4 8 ORR M6 12 2 92245 5 4 5 95 5 HA 15 M6 x 35 mounting holes 4pcs hex socket head cap screw Effective length mark 5mm 0 2 dia dowels For gauge pin mounting screws 4 pieces to mount jig block Absolute zero point mark Q Name plate
27. 509 HUC 6V 0 8 v0 c ejou 8L O G p0 z NN ey yua lou 9114 ST E Hor 2 8z 0 70 BL 0102 e M o 98 bk JeW Ola 0 0 Bulog 1095 9 E Mb s M EOP Gv 0 G 110 BIP 0 870 uel vide 200 99 8 022 Youd ejou 66 0 01 gt gt eb Sb 6 02 GUAT IIBJ8AO UN HOW 8 6 H1ON31 341103443 SGNOISN AI 81 auirzz HS 29 1 01 90 2191 hicSIS We 9 0 091 3 6 4 wg ALG WHEC 2 95 30 1445 US HLH OMS nr amp 00 T Y 100000088 amp LO MEH 4 4 Cth 4201490 8 6181 MASA G amp S Mgv z MLG ERZE AL 4 SOL 124 WL AA CH MOVES 09 MERE NS 5 4 N A amp e WI FKE 022 4 6 B ot Trawwoge ies ps Et 2 4 WHILE HS 31 66 6 98
28. Magnescales Linear Magnescale SR 721RD RM RN Read all the instructions in the manual carefully before use and strictly follow them Keep the manual for future references Instruction Manual SR 721RD SR 721RN SR 721RM NC
29. SERIAL NO COMBINATION NO Hole for 5mm 0 2 dia knock pin 4 8mm 0 19 dia bottom hole Jig block Mounting holes For M6 x 12 2pcs hex socket head cap screw QD Slider Head carrier Do4 5mm 0 18 dia hole for e5mm 0 2 dia dowel Bracket Armoured cable D HA 15 Head Amplifier Head cable SR 721RN M6X35 4 OBR ROS M3 4 SERIAL No 9 5 77 CV FER 4 8 ORR M6X12 2 5 4 5mm DB 5 HA 15 5 Head connecting cable option Q M6 x 35 mounting holes 4pcs hex socket head cap screw Effective length mark 5mm 0 2 dia dowels For gauge pin mounting screws 4 pieces to mount jig block Absolute zero point mark Q Name plate SERIAL NO COMBINATION NO Hole for 5mm 0 2 dia knock pin 4 8mm 0 19 dia bottom hole Jig block Mounting holes For
30. ___________ 18 VARICES ESE 20 EE EE SEE 24 eSR 721RD 2 35 amp 300mmLELF e MM 26 ER amp 350mmbELE eH 27 SR 721RM 300mm 30 335 amp 350mmbLE MR 31 SR 721RN 300mmB 34 ________ 35 Dre 38 38 CONTENTS NOTES TO USERS reroncene p E 3 EAT 6 NAMES OF PARTS sob 72 RD ee nde tenente ci t rct e 7 eSRT2 TRM ed 8 OR 7Z2 TRN LTS EEE EE 9 MOUNTING 1 Mounting POSitON aia 11 2 Mounting Direction tette iere eet te e 1 11 3 Setting of Scale Travel Range 11 4 Protection of Cable and Connector 13 5 Mounting Preparation nene Eh re e EEE 13 o bee es tectae e E E CX 15 7 Checking the Electric Signal PM signal essere nnne 17 8 Removing the Scale 17 9 Connection and Disconnection with Detector 17 BUILT IN ABSOLUTE ZERO POINT T eee utat eto Te ut cipe Cm af At ah 19 2 Absolute zero Point Detection 21 AB 25 OUTSIDE DIMENSIONS SR 721RD EFFECTIVE LENGTH 300 MM OR LESS 28 e SR 721RD EFFECTIVE LENGTH 350 MM OR
31. and detector 1 Standard type When a scale moves and a slider is fixed the absolute zero point mark passes the center of the slider form left to right When a scale is fixed and a slider moves the center of the slider passes the Absolute zero point mark absolute zero point mark from right to left of standard type When the absolute zero point is detected in the or direction the mark and signal match When a scale or a slider moves in the reverse direction the mark and signal do not match Do not use this direction for detecting the absolute 410 10mm zero point 0 16 to 0 39 21 2 9 9 onm 2 2
32. ctor 8 Removing the Scale To remove the scale after it has been mounted on a machine the jig block is used to mount the slider to the scale 5mm dia cauge Allen wrench width across flat 2 5mm 0 1 2 M3x5 Remounting the Head Refer to the Fig 5 1 Temporarily mount the scale and slider using the jig block 2 Use the scale gauge pin to position and mount the scale 3 Inthe same manner use the slider gauge pin to position and mount the head car rier 2 M3 x 16 This procedure maintainsthe relative position of the scale and head as the same as when originally mounted when remounting 9 Connection and Disconnection with Detector Whenever the detector is to be either connected to or disconnected from the scale always take care to remove power from the detector first 1 SR 721RD 500 20 mm mm 1 Right R 0 2 2 Left L 0 2 11 Center C 1 2
33. le brackets and slider Knock the dowels down through the holes Fig 4 Connect each scale to the detecter and fix cables using clips and BM 4 x 12 screws and washers When using SR 721HN head cable refer to cable page 15 jig block gt AA g4 5mm dia 0 18 knack pin hole Fix with two M6x12 screws with spring washer and flat washer Slider 15 1 PM SR 721RD SR 721RN SR 721RM 15 20 PM PM PM c d 0 025 0 025 PM 0 025 8 9 Fig 5 2 3
34. mm 0 2 and 2 5mmv 0 1 1 each 2 Phillips head ScrewdriVer soimi arataa EE EE 1 3 Electric drill for drilling 25 knock pin hole i 1 4 Electric micrometer or Test indicator et 1 set a Ln Eee tae hae 1 set Frequency band 1 MHZ min 6 QE Y gt 6 35 CRB 30 A B Fig 2 Fig 2 3 4 5 2 M3 C 1 5mm us 1 C
35. o holes of the jig block smoothly Move the machine so that the slider mounting bracket C in Fig 2 may be positioned underneath the slider The slider and bracket have a gap of 1 5mm 0 059 in design Adjust the gap using supplied liners as below 2 M6 Spring washer 2 M6 Flat washer Slider Fig 3 Find the minimum gap out of b c and d 1 Check out the gaps a b c and d between the slider and surface C of the slider bracket Fig 3 and find out the smallest of the four gaps Use supplied liners that provide a thickness of up to 2mm 0 079 at 0 1mm 0 0038 steps depending on their combination Pass through a g5mm dia 0 20 gauge pin Four bolts 7 2 Put a test indicator slider at the gap found the smallest and zero set the test indicator C Mounting bracket Na 3 Select and put liners in the smallest gap so the indicator reads 0 to 0 1mm 0 00397 4 Secures the slider to the bracket with two M6 x 12 screws and spring flat washers Check the test indicator reads 0 to 0 1mm 0 039 If not change liners Slider T Pick test Adjust to j the minimum gap View Fig 4 After fixing the slider remove these four M3 bolts 9 off the jig block by removing the 4 pieces M3 screws with Allen wrench 22 5 dia 0 017 Fig 4 g5mm 0 20 holes to receive dowels supplied beneath the sca
36. tor Do not pull the head cable forcibly or bent it repeatedly or it may break Further protect the cable and the connector with a cover chips and cutting oil 5 Mounting Preparation Tap the mounting holes for M6 x 15 as perpendicular as possible to the mounting faces Fig 1 Improper installation lowers the scale accuracy Theflatness of the mounting faces A B and C should be kept within the following tolerance A B Less than 0 1 0 004 C Less than 0 05mm 0 002 Distance between B 24 0 2mm 0 94 0 008 Parallelism between and C Less than 0 05mm 0 002 0 94 0 008 Following parts and tools are used Unit mm inch Fig 1 Standard accessories 1 Mounting screws hexagon socket M6 x35 for mounting scale ee t ete eo Mei e es edet ette 4 6 12 for mounting SE lt 2 M6 x 12 for mounting center foot plate seen tnnt 1 2 Knock pins 25 x 45 for mounting scale 2 25 x 10 for mounting slider 2 3 Pan head screws 4 12 for clamping cables 1 2 4 Liner 0 1 0 5 0 6 0 8 1 0 1 2 1 4mm thickness 7 5 Flat washers for slider for M6 2 6 Spring washers for slider for Me 2 7 Flat washers for slider for 3 8 Cable clips x eret UH ettet se ec i es 3 Tools required for mounting 1 Allen wrench width across flat 5
37. tting fine metal powder or when cutting ceramic or glass fiber objects etc Mount the scale so that it is not directly exposed to water miscible cutting fluid or cutting chips Attach a scale cover to prevent water miscible cutting fluid mist or dust from entering the inside of the scale When mounted on a honing machine or other machine that slides at high speed for long periods within a specific area Regularly apply oil or spray lubricant Be sure to implement the above measures when using the scale under the environments noted in and above Otherwise quality cannot be assured Oil injection type scales are available as optional specification products for cases where the above measures cannot be implemented Consult you Magnescale Co Ltd representative for details X ________________________ 2 6 SRE72HRD 7 721 t E E 8 SFO _ ___________ 9 1 it pes n EMI Ce E e 10 ML 10 10 4 e Henne 12 5 om 12 14 7 EE PMEZ lE 16 8 A7 KHW BILL SF BABS ee M memes enemenne 16 o 54 rg SE rapa uo deg bud 16 doge ___
38. zed construction consisting of a scale and a head assembly housed together The relative position of scale and head is preadjusted with the aid of a jig for easy and correct installation By connecting the SR 721RD SR 721RM SR 721RN to a connector a closed loop NC system can be set up The scale unit and the head amplifier amp cable unit if requested together for simultaneous delivery are electrically adjusted at factory They have combination numbers which should tally with each other Check them before installation General Precautions When using Magnescalee products observe the following general precautions along with those given specifically in this manual to ensure proper use of the products e Before and during operations be sure to check that our products function properly e Provide adequate safety measures to prevent damages in case our products should develop malfunction e Use outside indicated specifications or purposes and modification of our products will void any warranty of the functions and performance as specified of our products e When using our products in combination with other equipment the functions and performance as noted in this manual may not be attained depending upon operating environmental conditions Make full study of the compatability in advance Precautions for use under the following environments When using the scale in the enviroments with water miscible cutting fluid cu
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