MOVIMOT® MM..B in Category 3D (Dust Explosion - SEW
Contents
1. oO Operating Instructions Category 3D Dust Explosion Protection Edition 03 2000 09 011 98 65 gt gt BE 00E0 X18S 8160 Contents 1 Important 9 2 a a oS a eee a 4 2 Safety NOlES ear Ee ee eS on cn en iae aa 5 2 1 Information for using MOVIMOT in category 3D nneneeeennneeneeeennnenn 6 3 Structure of the Unit neesssnnannnnannnnnnnnnnnnannnnnnnnnnnannnnnnnnnnnannnnnnannnnnnnnnnannnnnnnn 7 3 1 Type designation nameplates pp 7 3 2 Structure of the inverter Unit 8 3 3 Description of the controls ss 9 4 Mechanical Installation urrsesnnnseennnnnnnnennnnnnnnnnnnnnnn nennen san nennen namen nenne 10 5 Electrical Installation nnennsnsnneennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nenn anne 11 5 1 Installation guidelines nn 11 5 2 Protecti n amp oncept un n nase need 13 5 3 Operating modes u BRRHRnnaneadnns ann tanse nn nnanatannneahnd anna 13 5 4 Connection with binary contrg 14 5 5 Connection with MLA12A optign nn 15 5 6 Connection with RS 485 bus mode pp 16 6 SUC o noo ae Heese cece cce see ceteence T 17 lt 6 1 Important startup instructionsS pp 17 8 6 2 Startup with binary control sssessesssseesseessiresisssinnssrnnstrnnentnnnnrnnnssnnne 18 6 3 Startup with the MLA12A option Nt 20 6 4 Startup with RS 485 bus operation pp 22 6 5 Serial communication ccccccc2. Actual current 16 Bit signed integer x 0 1 value Example 0320 800 x 0 1 I 80 In Controller enabled 1 m Uhnit ready 1 u PO data enabled 1 reserved reserved Error Warning 1 Status word 2 reserved reserved A1 brake A2 ready E1 CW E2 CCW E3 setpoint value f2 reserved 0 reserved 0 reserved 0 only with 3 word protocol 02760AEN The following manuals provide more detailed information about startup with RS AR 485 bus operation and about the MOVILINK unit profile MOVIMOT System Manual and MOVILINK Unit Profile Communication and Fieldbus Interfaces Operating Instructions MOVIMOT MM B for Use According to Category 3D 25 7 we gt Status LED 7 Operation and Service 7 1 Status LED gt Ip IQ atus LED I 9 SS O NS RY SS A Qo Ss rv S ASY ol 02600AEN 7 2 Status LED messages The 3 color LED indicates the operating and error states Color Operational status Description Off Not ready to operate No 24 V power supply Yellow Steady flashing Not ready to operate Self test phase active or 24 V power supply present but supply system voltage not OK Yellow Steady light Ready to operate but unit 24 V power supply and power system supply blocked OK but no enable signal Green Fla
3. Necessary protective measures Grounding the unit Disconnect the unit from the supply system prior to removing the connection box cover Dangerous voltages may still be present for up to 1 minute after mains disconnection Keep the connection box cover closed during operation Just because the status LED and other display elements have gone out does not mean that the unit has been disconnected from the power supply and is de energized Mechanical blockage or unit internal safety functions of MOVIMOT can lead to a motor standstill The removal of the source of the interruption or a reset of MOVIMOT can result in an automatic restart of the motor If for safety reasons this is not permissible for the driven machine the MOVIMOT must be discon nected from the supply system before correcting the fault Important MOVIMOT is not suitable for hoist applications Important Danger of burns The surface temperature of MOVIMOT units in particular that of the heat sink may exceed 60 C during operation Operating Instructions MOVIMOT MM B for Use According to Category 3D Safety Notes 2 1 Information for using MO VIMOT in category 3D Standards MOVIMOT units in category 3D comply with EN 50014 Electrical apparatus for po tentially explosive atmospheres general requirements 2nd edition and EN 50281 1 1 1998 Electrical apparatus for use in atmospheres containing flammable dust and therefore conform to
4. O hen ee ee 0 i 0 0 2 0 4 0 6 0 8 1 mA Setpoint 02846AEN Evaluation ofthe The unit is supplied with the TH already wired up in conjunction with the MLA12A TH option Consequently the 24 V power supply of MOVIMOT is interrupted when the TH trips and the drive is stopped At the same time the Ready contact of MOVIMOT drops out Ready contact terminals An automatic restart must be secured by evaluation of the ready contact Do not switch the drive back on until the cause of the problem has been checked This check must be performed by a trained specialist Functional check Check proper brake function when using brake motors This step will prevent P brake friction and the associated generation of excess heat Operating Instructions MOVIMOT MM B for Use According to Category 3D 21 6 2 Startup with RS 485 bus operation 6 4 Startup with RS 485 bus operation Checking connec 1 Check to see that MOVIMOT is connected correctly see Connection with RS 485 tion bus mode on page 16 Setting the RS 485 2 Set the correct RS 485 address on DIP switches S1 1 S1 4 address Address 1 2 3 al5 6 7 i8 9 10 11 12 13 14 15 1 1 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON 1 2 OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON p
5. 1 3 OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF ON ON ON ON Factory setting 1 4 OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON ON ON 3 Check the setting for 4Q operation 1Q operation DIP switch S1 6 Off to 3 Setting the mini 02766AEN mum frequency 4 Set the minimum frequency fmin with switch f2 je Switch f2 Factory setting Detent position 0 1 2 3 5 6 7 8 9 10 Minimum frequency fmin 2 5 7 10 12 15 20 25 30 35 40 5 Setting the ramp 5 Setthe ramp time with switch t1 unless it is specified via RS 485 time Switch t1 Factory setting Detent position 0 1 2 3 4 5 6 7 8 9 10 Ramp time t1 s 0 1 0 2 0 3 0 5 0 7 1 2 3 5 7 10 Enabling the direc 6 Check whether the required direction of rotation is enabled tion of rotation Terminal R y TerminalsL Meaning Activated Activated a a Sr e Both directions of rotation are enabled gt lt PDE BEN Activated Not activated b e Only clockwise direction of rotation is enabled Jr Setpoint entries for counterclockwise lead to the drive 2 9 being stopped L T Not activated Activated c e Only counterclockwise direction of rotation is enabled or Setpoint entries for clockwise lead to the
6. PLC compatible EN 61131 2 Rj 3 0 KQ lg 10 mA sampling interval lt 5 ms Signal level 13 V 30 V 1 Contact closed 3 V 5 V 0 Contact open Control functions T R G CW STOP T L CCW STOP TI f1 f2 0 Setpoint 1 1 Setpoint 2 Output relay TI Kia Response time lt 10 ms Contact data TI K1b 24 Voc 0 6 Apc DC11 to IEC 337 1 Signaling function Normally open contact for ready signal TI RS RS 485 to EIA standard TI RS Serial interface Max 32 stations 1 bus master 31 MOVIMOT units Max cable length 200 m for transmission rate 9600 baud 30 m for transmission rate 31250 baud SO Factory setting 16 kHz PWM frequency low noise When DIP SWITCH S1 7 ON the units operate with a 16 kHz PWM frequency low noise and switch back in steps to lower pulse frequencies depending on the heat sink temperature Ext control or option MLA12A Transmission rate of 31250 baud is set automatically for operation with the MLA12A option Operating Instructions MOVIMOT MM B for Use According to Category 3D Technical data MLA12A option 9 2 Technical data MLA12A option MLA12A Part number 823 186 9 Input voltage X9 X10 380 500 Vac 10 X6 24 Voc 25 max 200 mA Output voltage X5 0 V reference potential TI 1 PE Jeminals an T1 2 1 3 10 20 mA g input TI 4 L Reference ground for analog input E
7. Directive 94 9 EC ATEX 100a Enclosure of the MOVIMOT units in category 3D are supplied with enclosure IP54 at least The enclo housing sure has to be maintained over the complete operating time as a precondition for satis fying the requirements for devices in category 3D For this reason particular care must be taken even when connecting the units The unit must not be operated in zone 22 atmospheres if the enclosure type is not as sured Applications Unit group Il e Category 3D For use in zone 22 e Surface temperature 140 C e Ambient temperature 20 to 40 C Operating Instructions MOVIMOT MM B for Use According to Category 3D Type designation nameplates 3 Structure of the Unit 3 1 Type designation nameplates Type designation expe MOVIMOT MM 22 B 503 04 l Version 04 3D category Connection type Supply voltage Version B Motor rating MOVIMOT Series 02883AEN MOVIMOT name plate example SENFEVIRODKIVE Bruchsal germany C Typ KA67DT100L4BMGMM30B MLA 3VIEC 34 Nr 010012345 6 00 00 IM B3 kW 2 2 50Hz cos 0 99 50HzV 400 460 A 5 0 6ohzv 400 460 A 5 0 O r min 92 1400 IP 54 K F Bremse V 110 Nm 40 Gleichrichter Kg 54 Ma 310 N Il 3 D T140 C y 15 19 4 Schmierstoff Made in Germany 186 853 5 10 03090AXX Electronics nameplate example AAAA U U PU 1 U U D
8. Operating Instructions MOVIMOT MM B for Use According to Category 3D 15 5 Connection with RS 485 bus mode 5 6 Connection with RS 485 bus mode T 2 5 z o 2 allg 5 LHE 8 pe 235 E F 03 0 O OV PS vvu T gt SS SS sg EEE P i af Bee RS 485 Independent bus master evaluation unit with T restart interlock gt ICG sealt on At sa PANNA dl Both directions of rotation enabled Metal fon cable entries Potential compensation with the RS 485 master 02849AEN 1 The independent evaluation unit must have a base insulation to safely separated electrical circuits 16 Operating Instructions MOVIMOT MM B for Use According to Category 3D 6 Startup D Important startup instructions C 6 6 1 Important startup instructions OOP It is essential to comply with the safety notes see page 5 during startup Disconnect MOVIMOT from the supply system before removing replacing the terminal box cover Before startup make sure that the drive is not damaged and all protective covers have been fitted correctly MOVIMOT is optimally adapted to the motor by means of parameters stored in the unit As a result the parameter settings are fixed Use CW STOP or CCW STOP for jog mode A minimum switch off time of 2 seconds must be maint
9. PN 08kKVA 1 1KVA 1 4kVA 1 8KVA 2 2kVA 28kVA 3 8kVA Connection voltages Vin 3 x 400 Vac 415 Vac 460 Vac Approved range Vin 400 Vac 5 460 Vac 5 Supply frequency fin 50 Hz 60 Hz 10 Supply system rated current lin at Vin 400 Vac 1 0AAc 1 3Aac 1 6Aac 1 9Aac 2 4AAc 3 5 Age 5 0 Age Output voltage Un 0 Vin Output frequency fa 2 100 Hz Resolution 0 01 Hz Operating point 400 V at 50 Hz 100 Hz Rated output current In 1 2AAc 16AAc 2 0 Aac 2 5AAc 3 2AnAc 4 0 Aac 5 5 Age Motor power Pinot 0 25 kW 0 37 kW 0 55 kW 0 75 kW 1 1 kW 1 5 kW 2 2 kW PWM frequency 4 8 12 16 kHz C irent limitation Motor 160 at Y 150 at A Regenerative 160 at Y 150 at A External braking resistor Rmin Not permitted Interference immunity Complies with EN 50082 Parts 1 2 Emitted interference In accordance with limit value class A to EN 55011 and EN 55014 complies with EN 50081 Part 2 Ambient temperature Damb 20 C 40 C Enclosure select and specify with order IP54 IP55 IP65 Operating mode DB EN 60149 1 1 and 1 3 Type of cooling DIN 41 751 Self cooling Altitude h lt 1000 m Py reduction 1 per 100 m up to max 2000 m Ext power supply to control TI 24 V V 24 V 25 electronics IE lt 250 mA Binary inputs Isolated by opto coupler
10. drive being D5 stopped Be Not activated Not activated d yl Unit is blocked or the drive is stopped H PD 22 Operating Instructions MOVIMOT MM B for Use According to Category 3D Startup with RS 485 bus operation 7 6 7 Replace terminal box cover and secure with bolts Setting the maxi 8 Set the required maximum speed using setpoint potentiometer f1 mum speed A tl ees nie eee ee nes eee ies pin 642345 67 8 9 10 Pot position 02704AEN Important The opening above potentiometer f1 must be closed properly during operation by means of the supplied closing plug This is the only way in which explosion pro tection may be guaranteed The plug must not be removed unless there is no dan gerous dust air mixture present 9 Make sure the cover has a seal and fit cover back in 10 Switch on the voltage Evaluation of the The TH switch off must be monitored by an independent evaluation unit TH The drive must be disconnected from the power suuply system when the TH trips The TH automatically switches itself back on when the temperature drops below the maximum value An automatic restart must be prevented restart interlock Do not switch the drive back on until the cause of the problem has been checked This check must be performed by a trained specialist Functional check Check proper brake function when brake motors are used This step will prevent am
11. elements must also be checked for wear Operating Instructions MOVIMOT MM B for Use According to Category 3D 31 8 Inspection and maintenance of the brake Fig 4 Type BMG 05 BMG 4 1 Motor with brake bearing end shield Carrier Circlip Niro disk only BMG Rubber sealing collar Annular spring Brake disk Pressure plate ON Oo FW PP 32 9 Damping plate 10a Stud 3 pcs 10b Counter spring 10c Pressure ring 10e Hexagon nut 11 Brake spring 12 Brake coil body 13 Sealing washer 14 Dowel pin 15 16 17 18 19 20 21 22 23 02900AXX Releasing lever with hand lever Stud 2 pcs Conical coil spring Setting nut Fan Circlip Fan guard Housing screw Clamping strap Operating Instructions MOVIMOT MM B for Use According to Category 3D Inspection and maintenance of the brake 8 Inspecting the brake Fig 4 Fig 5 A Checking the brake disk Setting the working air gap Interrupt MOVIMOT power supply safeguarding it against unintentional starting Remove the following Proximity sensor NV16 NV26 if fitted Flange cover or fan guard 21 Remove the clamping straps 23 and move the rubber sealing collar 5 Remove any abraded residue with vacuum Measure the brake disk 7 If the brake disk is lt 9 mm Replace brake disk see page 34 Measure the working air gap A see Fig 5 with feeler gauge at three points between thepressure plate a
12. motor protection DC braking PWM frequency Status LED visible from the top of the connection box cover see Status LED on page 26 Terminals for TH connection arrangement of terminals varies according to the size of the MOVIMOT unit Operating Instructions MOVIMOT MM B for Use According to Category 3D Description of the controls 3 3 Description of the controls DIP SWITCH S1 S1 1 2 3 4 5 6 7 8 0 51 52 53 Motor protection 3 PWM frequency ON ee deactivated DC braking 16 kHz variable No func Motor protection ae PWM frequency tion OFF RS 485 address active 4Q operation 4 kHz fix 1 16 kHz PWM frequency low noise When DIP SWITCH S1 7 ON the units operate with a 16 kHz PWM frequency low noise and switch back in steps to lower pulse frequencies depending on the heat sink temperature Factory setting Setpoint The function of the potentiometer changes depending on the unit s operating mode potentiometer f1 Control via terminals Setpoint f1 selected by tl f1 f2 0 e Control via RS 485 Maximum frequency fmax 100 f Hz 02704AEN Setpoint switch f2 The function of the switch changes depending on the units operating mode Control via terminals Setpoint f2 selected by tl f1 f2 1 e Control via RS 485 Minimum frequency fmin Setpoint switch f2 Detent position
13. 0 1 2 3 4 5 6 7 8 9 10 Setpoint f2 Hz 5 7 10 15 20 25 35 50 60 70 100 eee 2 5 7 10 12 15 20 25 30 35 40 z Factory setting Switch t1 For ramp generator Switch t1 Detent position 0 1 2 3 4 5 6 7 8 9 10 Ramp time t1 s 01 0 2 03 05 07 1 2 3 5 7 10 Factory setting Operating Instructions MOVIMOT MM B for Use According to Category 3D 10 Mechanical Installation 4 Mechanical Installation Before you begin Installation toler ances Setting up MOVIMOT or MOVIMOT may not be installed unless e the entries on the name plate of the drive match the mains power supply the drive is undamaged no damage caused by transport or storage and e itis certain that the following requirements have been fulfilled ambient temperatures between 20 C and 40 C remember that the tempera ture range of the gear unit may be restricted operating instructions for the gear unit nooil acid gas vapors radiation etc installation altitude max 1000 m above sea level Shaft end Flanges Diametric tolerance in accordance with DIN 748 Centering shoulder tolerance in accordance with DIN ISOk6 at lt 50 mm 42948 ISO m6 at gt 50 mm ISO j6 at lt 230 mm Center hole in accordance with DIN 332 shape DR ISO h6 at gt 230 mm MOVIMOT Geared Motors catalog s
14. 7 8 9 10 Euer 2 5 7 10 12 15 20 25 30 35 40 z 5 Set the ramp time with switch t1 Switch t1 Factory setting Detent position 0 1 2 3 4 g 6 7 8 9 10 Ramp time t1 s 0 1 0 2 0 3 0 5 0 7 1 2 3 5 7 10 6 Replace terminal box cover and secure with bolts 7 Set the required maximum speed using setpoint potentiometer f1 100 f Hz Tot 02704AEN The opening above potentiometer f1 must be closed properly during operation by means of the supplied closing plug This is the only way in which explosion pro tection may be guaranteed The plug must not be removed unless there is no dan gerous dust air mixture present Make sure the cover has a seal and fit it back in place Select the sign direction of rotation for the analog input tl 2 and tl 3 on the MWA12A option using switch S1 S1 S2 Clockwise OFF N C Counterclockwise ON N C 10 Switch on the voltage Operating Instructions MOVIMOT MM B for Use According to Category 3D l Startup with the MLA12A option al 6 Control MOVIMOT is controlled from fmin to fmax Using the analog signal at terminal 2 and ter minal 3 Setpoint stop function Hz 5 ee tee Be ok ree ey SER ee Rete ce AAU A crt he Mee en A en ee ad Ne Ae eet hee rs Ss g 2 fmin i EET TE EEE E ER TESTE z 2 H2 l Q
15. Baureihe B in Verbindung mit SEW Motoren und Bremsmotoren in der Kategorie 3D auf die sich diese Erkl rung bezieht mit der EG Richtlinie 94 9 EG bereinstimmt SEW EURODRIVE hereby certifies with sole responsibility that the Series B MOVIMOT in conjunction with SEW motors and brake motors in category 3D to which this declaration refers complies with the requirements of the EC Directive 94 9 EC Angewandte harmonisierte Normen EN 50 014 EN 50 281 1 1 Applicable harmonised standards EN 50 014 EN 50 281 1 1 SEW EURODRIVE hilt folgende technische Dokumentationen zur Einsicht bereit SEW EURODRIVE has the following documentation available for inspection vorschriftsm ige Bedienungsanleitung Installation and Operating Instructions in conformance with applicable regulations techn Bauunterlagen iV ne dt Technical Design Documentation Funktion Leiter Entwicklung Elektronik SEW EURODRIVE GmbH amp Co iv Bruchsal den 11 08 99 Ort und Datum der Ausstellung Funktion Leiter EntwiCklung Place an date of issue Elektromotoren Function Head of Development Function Head of Development Electrical Motors Electronics Herstellererkl runge doc Operating Instructions MOVIMOT MM B for Use According to Category 3D 39 We are available wherever you need us Worldwide SEW EURODRIVE right around the globe is transmission with manufacturing and assem your competent partner in matters of p
16. MOT MM B for Use According to Category 3D 37 Approved ball bearing types 9 5 Approved ball bearing types Non drive end bearing Drive end bearing AC motor brake motor foot mounied flange mounted Motor geared motors type Flange mounted Geared motor es eatin ter AC motor Brake motor motor motor DT 71 80 6204 Z J 6303 Z J 6204 Z J 6203 J 6203 RS J C3 DT 90 100 6306 Z J C3 6205 J 6205 RS J C3 9 6 Operating characteristics The operating characteristics provide information about the torque values with which MOVIMOT units may be loaded depending on the speed Exceeding these values over long periods gives rise to impermissible heat e Brief periods above this value are permitted 50 Hz X 1 087 E 0 6 0 4 027 0 hot 0 500 1000 1500 2000 2500 3000 n 1 min 02847AEN 100 Hz A f n 1 min 02848AEN 38 Operating Instructions MOVIMOT MM B for Use According to Category 3D Declaration by the manufacturer 9 7 Declaration by the manufacturer ws DIN EN ISO 9001 EURODRIVE SEW EURODRIVE GmbH amp Co Ernst Blickle Str 42 D 76646 Bruchsal Herstellererkl rung Manufacturer s Declaration im Sinne der EG Richtlinie 94 9 EG Anhang VIII according to EC Directive 94 9 EC Appendix VIll SEW EURODRIVE _ erkl rt in alleiniger Verantwortung dass der MOVIMOT der
17. P individually in accordance with the project planning documents E Renove abraded matter Inspect the motor every 10 000 hours of operation Motor fit new ball bearings oil seal e Clean the cooling air passages variable Touch up or renew the anticorrosion depending on external factors coating Checks following Perform a safety and functional check after all maintenance or repair work This check maintenance or should be the same as the functional check described for startup repair work Perform another routine test prior to startup if you have replaced any parts on the motor which may affect its explosion proof qualities 28 Operating Instructions MOVIMOT MM B for Use According to Category 3D Inspection and maintenance work on the motor 8 2 Inspection and maintenance work on the motor Fig 3 Example motor DFT MM 1 Circlip 6 Circlip 12 Equalizing ring 2 Oil flinger 7 Ball bearing 13 Stator 3 Oil seal 8 Circlip 14 Non drive end bearing 4 Screw plug 9 Rotor shield 5 Drive end bearing 10 Nilos ring 15 Hexagon screw shield 11 Ball bearing 16 V ring Operating Instructions MOVIMOT MM B for Use According to Category 3D 17 Fan 18 Circlip 19 Fan guard 20 Housing screw 02575AXX 29 30 Inspecting the motor Fig 3 A Inspection and maintenance work on the motor 8 9 Important Interrupt power supply to MOVIMOT safeguarding it against un intentional
18. R RS 485 to EIA standard Serial interface ALS Transmission rate 9600 31250 baud Enclosure IP65 9 3 Regenerative load capacity of brake coil Load capacity Brake coil BMG05 1 Brake coil BMG2 Brake coil BMG4 for DT71 DT80 DT90 DT 100 100 cdf 30 W 57 W 70 W 50 cdf 39 W 88 W 105 W 25 cdf 56 W 150 W 175 W 12 cdf 90 W 270 W 330 W 6 cdf 150 W 480 W 620 W 9 4 Work done until adjustment working air gap braking torque of brake Work done Werk iuglai Braking torque settings Se gap mm Brake For until adjust aee ee and na Order numbers Resistance type motor size ment 5 reng ee ae Brake 106 J min max torque OT springs or springs Nm Normal Red Normal Red 5 0 3 4 0 2 2 BMG 05 DT 71 60 25 6 a 16 4 230V 12 3 135017X 1350188 10 6 BMG 1 DT 80 60 75 4 2 a 6 0 3 3 230V 0 25 0 6 7 s 16 2 2 BMG2 DT90 130 10 6 oo 6 6 4 230V 50 3 135 150 8 135 151 6 10 6 BMG4 DT 100 130 30 4 2 an 24 3 3 110V 1 Rated value measured between the red connection terminal 13 and the blue connection terminal 15 at 20 C temperature dependent fluctuations in the range of 25 40 are possible 2 Please note when checking the working air gap Parallelism tolerances on the brake disk may give rise to deviations of 0 1 mm after a test run Operating Instructions MOVI
19. U all ii I Ill il i IN VDE 0558 SEW Seen Ne 8268262 Serien Nr 90327 A EURODRIVE u rn Fr oT 5 D 76646 Bruchsal f 50 60H2z 410 Antriebsumrichter 1 5 0AAC I 55AAC Lastart M Made in Germany T 20 40C Motor DT100L4 A 5T100L34 A 02581AXX Operating Instructions MOVIMOT MM B for Use According to Category 3D Structure of the inverter unit 3 2 Structure of the inverter unit 02882AXX Bild 1 Structure of the unit NO of WD lt 11 12 13 14 15 16 17 18 Identification of the circuit type Connection box Connection plug connection unit with inverter Connection box cover with inverter and heat sink Connection unit with terminals Electronics terminal strip X2 Connection of brake coil X3 For motors without a brake Connection of internal braking resistor BW1 BW2 standard Power system connection L1 L2 L3 X3 suitable for 2 x 4 mm Screws for PE connection y Cable screw fittings MMOSB MM15B 2 x PG11 and 2 x PG16 from start of 2000 2 x M16 and 4 x M25 not all visible in picture MM22B MM30B 4 x PG11 and 4 x PG16 from start of 2000 4 x M16 and 4 x M25 Electronics nameplate Safety hood for inverter electronics Setpoint potentiometer f1 not visible accessible from the top of the connection box cover by means of a PG screw fitting Setpoint switch f2 green Switch t1 for ramp generator white DIP switch S1 for setting the bus address
20. ained for the supply system contactor K11 Operating Instructions MOVIMOT MM B for Use According to Category 3D 17 6 2 Startup with binary control 6 2 Startup with binary control Check connection 1 Check MOVIMOT to see that it is connected correctly see Connection with binary control on page 14 Set the DIP 2 Make sure DIP switches S1 1 S1 4 are set to OFF address 0 switches 3 Check the setting for 4Q operation 1Q operation DIP switch S1 6 Off ON to 2 an to 3 02764AEN Set the first speed 4 Set the first speed with setpoint potentiometer f1 active when tl f1 f2 O factory setting approx 50 Hz 100 f Hz 02704AEN Fig 2 Frequency response of setpoint potentiometer f1 The first speed is infinitely variable and can be set by using the setpoint tion by means of the supplied closing plug This is the only way in which potentiometer f1 which is accessible externally Ex The opening above potentiometer f1 must be closed properly during opera explosion protection can be guaranteed The plug must not be removed even for adjusting the speed unless there is no dangerous dust air mixture present Set the second 5 Set the second speed with switch f2 active when tl f1 f2 1 speed Switch f2 Factory setting Detent position 0 1 2 3 4 5 6 7 8 9 10 Set
21. al injuries Hazardous situation Possible consequences Slight or minor injuries Harmful situation Possible consequences Damage to the unit and the environment Tips and useful information Important information about explosion protection DOOP PD A requirement of fault free operation and fulfillment of any rights to claim under guaran tee is that the information in the operating instructions is adhered to Consequently read the operating instructions before you start working with the unit The operating instructions contain important information about servicing as a result they should be kept in the vicinity of the unit This product consists of Iron Aluminum Copper Plastic Electronics components Please dispose of the parts in accordance with the applicable regulations Operating Instructions MOVIMOT MM B for Use According to Category 3D Safety Notes 2 Safety Notes Never install damaged products or take them into operation Please submit a complaint to the transport company immediately in the event of damage Only electrical specialists with the relevant accident prevention training are allowed to perform installation startup and service work on the unit They must also comply with the regulations in force e g EN 60204 VBG 4 DIN VDE 0100 0113 0160 Make sure that preventive measures and protection devices correspond to the applicable regulations e g EN 60204 or EN 50178
22. clip 20 and fan 19 3 Remove the clamping straps 23 and rubber sealing collar 5 Remove the manual brake release setting nuts 18 conical coil springs 17 studs 16 releasing lever 15 dowel pin 14 4 Unscrew the hexagon nuts 10e and pull off the brake coil body 12 by about 50 mm caution brake cable 5 Replace or add brake springs 11 Position the brake springs symmetrically 6 Re assemble the brake components except for the rubber sealing collar fan and fan guard Set the working air gap see page 33 points 5 to 7 7 With manual brake release Use setting nuts to set the floating clearance between the conical coil springs pressed flat and the releasing lever gt Fig 6 Important This floating clearance is necessary so that the pressure plate can move up as the brake lining wears 8 Fit the rubber sealing collar back in place and re install removed parts Note Install new setting nuts 18 and hexagon nuts 10e if the removal procedure is repeat ed due to reduction in the self locking effect of the nuts Operating Instructions MOVIMOT MM B for Use According to Category 3D 35 36 MOVIMOT in category 3D 9 Technical data relating to 4 kHz PWM frequency 9 1 MOVIMOT in category 3D 1 MM 03B MM 05B MM 07B MM 11B MM 15B MM22B MM 30B MOVIMOT type 503 04 503 04 503 04 503 04 503 04 503 04 503 04 Output power
23. e earth capacitance of the inverter The MOVIMOT power supply should be either from an external 24 VDpc voltage or using the MLA12A options Connect the required electronic control leads e g CW STOP CCW STOP setpoint changeover f1 f2 Use shielded cables as control leads and route them separately from power current cables With PLC bus master or MLA12A option Important Only ever connect one bus master Use twisted pair shielded cables as control leads and route them separately from power current cables All cable entries which are not required must be sealed properly using suitable closing plugs Operating Instructions MOVIMOT MM B for Use According to Category 3D Protection concept 5 2 Protection concept x In conjunction with MLA12A In order to avoid exceeding the permitted temperature only operation in accor dance with the operating characteristics is permitted see Operating character istics on page 38 MOVIMOT units in category 3D are supplied with a temperature switch TH The TH switches off the motor if the winding temperature exceeds the maximum value The switching off process by the TH must be monitored by an independent evalua tion unit The independent evaluation unit must be equipped with a base insulation to securely separated electrical circuits The drive must be disconnected from the supply power system when the TH trips The TH automatically switches itsel
24. eccecescsesseaeecaececeeeeececeecsesseseaaeeaeeeeeeeeess 24 7 Operation and Service unssnnunnsansnnannnnnnnannnnannnnnnnnnnnnnnnnnnnnnnnnannnnnnnnnnnnnnnnnnn ann 26 Ser A Stat s LED us nassen ine 26 7 2 Status LED messages Ne 26 7 3 LEO ONOS cunni cece oh pict ete ei eed eee 27 8 Inspection and Maintenance uursssennsennnnnnnnennnnnnnnnennnnnnnnnennnnnnannennnnnn anne 28 8 1 Inspection and maintenance periods pp 28 8 2 Inspection and maintenance work on the motor seen 29 8 3 Inspection and maintenance of the brake ppp 31 9 Technical data relating to 4 kHz PWM frequency 0 36 9 1 MOVIMOT in category 3D ccccsesseesessessessssessssnssessessessssnesessteseseesneees 36 9 2 Technical data MLA12A Option pp 37 9 3 Regenerative load capacity of brake coil pp 37 9 4 Work done until adjustment working air gap braking torque of brake 37 9 5 Approved ball bearing types pp 38 9 6 Operating characteristics cccccccccceseeeeeeeeeeeeeeeeeeeeeeseaeeeeeeeesseeeseneees 38 9 7 Declaration by the manufacturer cece ee cece eeeeeeeeeeeeeeeeaeeeeeeenaaees 39 Operating Instructions MOVIMOT MM B for Use According to Category 3D Important Notes 1 Important Notes L Waste disposal Always following the safety and warning instructions contained in this publica tion Electrical hazard Possible consequences Severe or fatal injuries Hazard Possible consequences Severe or fat
25. ection Notes on Dimension Sheets The MOVIMOT may only be mounted or installed in the specified mounting position on a level vibration proof and torsionally rigid support structure Thoroughly remove anti corrosion agents from the shaft ends use a commercially available solvent Do not allow the solvent to penetrate the bearings and shaft seals this could cause material damage e Carefully align MOVIMOT and the driven machine to avoid placing any unaccept able strain on the motor shafts observe permissible overhung load and axial thrust data Do not butt or hammer the shaft end Use an appropriate cover to protect motors in vertical mounting positions from accidental entering of objects or fluids Protection cowl C Ensure an unobstructed cooling air supply and that air heated by other units cannot be drawn in or reused Balance components for subsequent mounting on the shaft with a half key output shafts are balanced with a half key Operating Instructions MOVIMOT MM B for Use According to Category 3D Installation guidelines 5 Electrical Installation It is essential to comply with the safety notes see page 5 during installation 5 1 x Installation guidelines When connecting up comply with the following ElexV 1 provisions or other nationally valid regulations in addition to the generally applicable installation regulations EN 60 079 14 Installation of elect
26. ervice or brake coil defective Reset error by switching off the 24 Vpc supply voltage or use MOVILINK 1 See the MOVILINK Unit Profile Communication and Fieldbus Interfaces manual for detailed information about communication If you require assistance from our customer service staff please state the following Nameplate data Time and accompanying circumstances of error Type and extent of error Presumed cause Operating Instructions MOVIMOT MM B for Use According to Category 3D 8 Inspection and maintenance periods 8 Inspection and Maintenance Notes Only use genuine spare parts in accordance with the valid spare parts list Important Danger of burns Motors can become very hot during operation The IP enclosure of the housing must be maintained in order to ensure pro tection against explosions It is therefore very important to make sure that the housing parts are assembled correctly in accordance with the spare parts list for all maintenance and inspection work Elastomer and plastic seals must be replaced with genuine spare parts 8 1 Inspection and maintenance periods Unit unit 9 Frequency component What to do 3 Inspect the brake depending on loading conditions every 2 to 4 years The wear periods are affected by many factors and may be Brake a ee P short Calculate the required inspection maintenance intervals sure pi s 9 9
27. f back on when the temperature drops below the maximum value A restart interlock must prevent the drive from being energized Important Do not switch the drive back on until the cause of the problem has been checked This check must be performed by a trained specialist The unit is supplied with the TH already wired up in conjunction with MLA12A Con sequently the 24 V power supply of MOVIMOT is interrupted when the TH trips and the drive is stopped At the same time the ready contact of the MOVIMOT drops out ready signal terminals A restart interlock must prevent the drive from being energized again automatically when the TH switches back on Important Do not switch the drive back on until the cause of the problem has been checked This check must be performed by a trained specialist 5 3 Operating modes 4Q operation 1Q operation x The following operating modes are permitted with MOVIMOT units in category 3D 4Q operation with motors with a mechanical brake The brake coil is used as a braking resistor in 4Q operation No external braking resistor is allowed to be connected Regenerative load capacity of the brake coil see page 37 1Q operation with motors without a mechanical brake Important Connecting an internal or external braking resistor is not permitted Operating Instructions MOVIMOT MM B for Use According to Category 3D 13 5 Connection with binary control 5 4 Connection
28. ions MOVIMOT MM B for Use According to Category 3D Check the brake for proper function when brake motors are used This step will The TH switch off must be monitored by an independent evaluation unit The drive must be disconnected from the power supply system when the TH trips The TH automatically switches itself back on when the temperature drops below the maximum value An automatic restart must be prevented restart interlock Do not switch the drive back on until the cause of the problem has been checked This check must be performed by a trained specialist prevent brake friction and the associated generation of excess heat Startup with binary control al 6 19 6 2 Startup with the MLA12A option 6 3 Startup with the MLA12A option Checking connec tion Set the DIP switches Setting the mini mum frequency p Jm A Setting the ramp time Setting the maxi mum speed Important x Selecting the direc tion of rotation 20 1 Check to see that MOVIMOT is connected correctly see Connection with MLA12A option on page 15 2 Set DIP switch S1 1 on MOVIMOT to ON address 1 3 Check the setting for 4Q operation 1Q operation DIP switch S1 6 Off ON to 2 to 3 1 r 02765AEN 4 Setthe minimum frequency fmin with switch f2 Switch f2 Factory setting Detent position 0 1 2 3 4 5 6
29. irements of EN 50 014 2nd edition Select the cable entries on the basis of the diameter of the cables used Please refer to the documentation provided by the manufacturer of the cable entry for fur ther information Install the line protection at the start of the supply system lead behind the supply bus junction see section 5 4 to section 5 6 F11 F12 F13 Use D DO NH or circuit breakers The fusible rating should be selected in accordance with the cross section of the cable It is not permissible to use a conventional residual current operated circuit breaker r c c b as a protective device Universal current sensitive residual current oper ated circuit breakers tripping current 300 mA are permissible as a protective device Earth leakage currents gt 3 5 mA may occur during normal operation of the MOVIMOT Contactor switch contacts in utilization category AC 3 to IEC 158 must be used for switching MOVIMOT 1 Or other national guidelines Operating Instructions MOVIMOT MM B for Use According to Category 3D 11 12 Installation guidelines IT systems Connecting 24 Voc supply Conventional control using binary commands Control via RS 485 interface Cable screw fit tings x SEW recommends using earth leakage monitors with a pulse code measuring process in voltage power systems with a non earthed star point IT systems This avoids faulty tripping of the earth leakage monitor due to th
30. loating clearance between the conical coil springs pressed flat and the setting nuts gt Fig 6 Important This floating clearance is necessary so that the pressure plate can move up as the brake lining wears 9 Fit the rubber sealing collar and clamping straps back in place and re install the dis mantled parts Note The lockable manual brake release type HF has already been released if a resistance is encountered when operating the manual brake release screw The self reengaging manual brake release type HR can be operated with normal hand pressure Important In brake motors with self reengaging manual brake release the manual brake re lease lever must be removed after startup maintenance A bracket is provided for storing it on the outside of the motor Floating clear Brake 9 ance mm BMG 05 1 1 5 BMG 2 BMG4 2 01111AXX Fig 6 Operating Instructions MOVIMOT MM B for Use According to Category 3D Inspection and maintenance of the brake Changing the The braking torque can be altered in steps see page 37 braking torque Fig 4 Fig 5 IN by installing different brake springs by changing the number of brake springs Interrupt power supply to MOVIMOT unit safeguarding it against uninten tional start 2 Remove the following proximity sensor NV16 NV26 if fitted flange cover or fan guard 21 cir
31. mp 85hex Acyclical 3words Status word 1 Output current Status word 2 PDU User data BCC Block check character XOR all bytes If the cyclic type is selected MOVIMOT expects the next bus activity after maximum one second master protocol If this bus activity is not detected MOVIMOT rests au tomatically time out monitoring There is no time out monitoring if the acyclical type is selected Operating Instructions MOVIMOT MM B for Use According to Category 3D Serial communication aa 6 User data master Slave Basic control block 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 110 release Control word l not assigned Reset not assigned otherwise stop Setpoint Signed percentage 0 0061 Example 80 0 0061 13115 CCC5 hex Ramp Time from 0 to 50 Hz in ms range 100 10000 ms Example 2 0 s 2000 ms 07D0 C hex only with 3 word protocol 02758AEN User data slave Master 15 14 13 12 11 110 9 8 7 6 5 4 3 2 1 0 Controller enabled 1 i Unit ready 1 State of unit fault number en 0 inverter not ready PO data enabled 1 Status word 1 2 no enable leet 4 enabled V f controlled ErrorAWamning in reserved reserved
32. nd the damping plate 9 offset by approx 120 Tighten the hexagon nuts 10e until working air gap is set correctly see page 37 Fit rubber sealing collar and clamping straps back in place and re install removed parts 02577AXX Fig 5 Measuring the working air gap Operating Instructions MOVIMOT MM B for Use According to Category 3D 33 34 Installing new brake disk Fig 4 Fig 5 A Inspection and maintenance of the brake When installing a new brake disk inspect the other removed parts as well and replace if necessary 1 Interrupt power supply to MOVIMOT unit safeguarding it against uninten tional starting 2 Remove the following proximity sensor NV16 NV286 if fitted flange cover or fan guard 21 circlip 20 and fan 19 3 Remove the clamping straps 23 and rubber sealing collar 5 Remove the manual brake release setting nuts 18 conical coil springs 17 studs 16 releasing lever 15 dowel pin 14 4 Unscrew hexagon nuts 10e carefully pull off the coil body 12 brake cable and remove brake springs 11 5 Remove the damping plate 9 pressure plate 8 and brake disk 7 and clean the brake components 6 Install new brake disk 7 Re assemble the brake components except for the rubber sealing collar fan and fan guard Set the working air gap see page 33 points 5 to 7 8 For manual brake release type HF or HR Use setting nuts to set the f
33. or interruption Motor restarts automatically as soon as the supply voltage reaches normal values Error code 06 Check the supply system leads for phase fault Reset the fault by switching off the Phase fault 24 Vpc supply voltage or use MOVILINK Error code 07 a Ramp time too short Increase ramp time DC link voltage b Faulty connection between brake coil and braking resistor too ngn Check connection between braking resistor and brake coil Correct if necessary c Incorrect internal resistance brake coil braking resistor Check internal resistance of brake coil braking resistor see page 37 d Thermal overload in braking resistor Wrong size of braking resistor selected Reset error by switching off the 24 Vpc supply voltage or use MOVILINK Error code 11 Clean heat sink Thermal overload of the output Reduce ambient temperature stage or internal unit fault Prevent heat accumulation Reduce load on drive Reset error by switching off the 24 Vpc supply voltage or use MOVILINK Error code 84 Reduce ambient temperature Thermal overload of motor Prevent heat accumulation Reduce load on the motor e Increase speed Reset error by switching off the 24 Vpc supply voltage or use MOVILINK Extend set ramp time Error code 89 Inspect brake See Inspection and maintenance of the brake on page 31 Thermal overload of brake coil Contact SEW s
34. ower bly plants in most major industrial countries EURODRIVE SEW EURODRIVE GmbH amp Co P O Box 30 23 D 76642 Bruchsal Germany Tel 49 7251 75 0 Fax 49 7251 75 19 70 Telex 7 822 391 http www SEW EURODRIVE com sew sew eurodrive com
35. p brake friction and the associated generation of excess heat Operating Instructions MOVIMOT MM B for Use According to Category 3D 23 6 24 2 Serial communication 6 5 Serial communication Message structure Key Note The control e g PLC is the master MOVIMOT is the slave 1 start bit 1 stop bit and 1 parity bit even parity are used Transmission conforms to the SEW MOVILINK protocol with a fixed transfer rate of 9600 baud Request message _ oF Idle SD1 ADR TYP Protocol Data Unit PDU BCC o fall ii i sans roo je fe A RARE Idle SD2 ADR TYP Protocol Data Unit PDU BCC Master lt __ Response message MOVIMOT 02754AEN Idle Start pause at least 3 44 ms SD1 Start delimiter start character 1 Master gt MOVIMOT 02hex SD2 Start delimiter start character 2 MOVIMOT Master 1Dpex ADR Address 1 15 Group address 101 115 254 Point to point 255 Broadcast TYPE User data type Transfer Process DE variant data length Near O3hex Cyclical 2 words Control word Speed 83hex Acyclical 2words Status word 1 Output current 05hex Cyclical 3 words Control word Speed Ra
36. point f2 Hz 5 7 10 15 20 25 35 50 60 70 100 Setting the ramp 6 Set the ramp time with switch t1 time 18 Switch t1 Factory setting Detent position 0 1 2 3 4 5 6 7 8 9 10 Ramp time t1 s 0 1 0 2 0 3 0 5 0 7 1 2 3 5 T 10 7 Put onthe terminal box cover and secure with bolts 8 Make sure the cover has a seal and fit the cover back in Operating Instructions MOVIMOT MM B for Use According to Category 3D Important x The opening above potentiometer f1 must be closed properly during operation by means of the supplied closing plug This is the only way in which explosion pro tection may be guaranteed The plug must not be removed even for adjusting the speed unless there is no dangerous dust air mixture present 9 Switch on the 24 Vpc control voltage and supply system Inverter response according to the terminal level Network 24V f1 f2 CW STOP CCW STOP Status LED Inverter response 0 0 X x x Off Inverter off 1 0 X X X Off Inverter off 1 1 x 0 0 Yellow Stop 1 1 0 1 0 Green Clockwise with f1 Counterclockwise 1 1 0 0 1 Green with f1 1 1 1 1 0 Green Clockwise with f2 Counterclockwise 1 1 1 0 1 Green with f2 1 1 X 1 1 Yellow Stop Key 0 No voltage 1 Voltage X Any Evaluation of the TH Functional check x Operating Instruct
37. power up Remove proximity sensor NV16 NV26 if fitted Remove the flange cover or fan guard 19 Remove the hexagon head screws 15 from the drive end bearing shield 5 and the non drive end bearing shield 14 release the stator 13 from the drive end bearing shield a Motors with a brake open the terminal box cover remove brake cable from terminals push the non drive end bearing shield and the brake off the stator and carefully lift them off if necessary run the brake cable along with trailing wire b Pull the stator back by approx 3 to 4 cm Visual check Are there traces of gear oil or condensation inside the stator no continue with 9 if there is moisture continue with 7 if there is gear oil have the motor repaired by a specialist workshop a Geared motors remove the motor from the gear unit b Motors without a gear unit remove the drive end flange c Remove the rotor 9 Clean the winding dry it and check it electrically Fit new ball bearings 7 11 only use approved ball bearings see page 38 10 Fit new oil seal 3 in the drive end bearing shield 11 Reseal the stator seat reassemble the motor brake etc Then check gear unit if applicable see the gear unit operating instructions Operating Instructions MOVIMOT MM B for Use According to Category 3D Inspection and maintenance of the brake 8 3 Inspection and maintenance of the brake Using the brake as a
38. rical systems in hazardous areas EN 50281 1 2 Electrical tools and fixtures for use in atmospheres containing flammable dust DIN VDE 0105 9 Operation of electrical systems DIN VDE 0100 Setup of power installations up to 1000 V and provisions specifically relating to the system Connecting supply system leads Rated voltage and frequency Selecting the cables Permitted line cross section of the termi nals Conductor end sleeves Cable entries x Line protection Residual current operated circuit breaker Contactor switch contacts The rated voltage and frequency of MOVIMOT must correspond to the data for the mains supply The cross sections of the cables used must be selected according to the rated cur rent of the unit and the applicable installation regulations The selection of the cable type is based on the applicable installation regulations and the requirements at the application location Control terminals 0 25 mm 1 0 mm 2 x 0 75 mm AWG22 AWG17 2 x AWG18 Power terminals 1 0 mm 4 0 mm 2 x 4 0 mm AWG17 AWG10 2 x AWG10 Use conductor end sleeves without insulating shrouds DIN 46228 part 1 material E CU All cable entries are supplied fitted with a closing plug To connect the unit replace the required number of plugs with suitable cable entries which are fitted with strain relief The cable entries must meet the requ
39. shing with alternat Ready to operate but timeout Communication via RS 485 interrupted yellow ing colors Green Steady light Unit enabled Motor operating Green Steady flashing rapidly Current limit active Drive has reached the current limit Red flashing twice pause Fault 07 DC link voltage too high Red flashing 3x pause Fault 11 Excessive temperature in output stage Red flashing 4x pause Fault 84 Excessive temperature in motor Red flashing 5x pause Fault 89 Excessive temperature in brake Red flashing 6x pause Fault 06 Mains phase fault 26 Operating Instructions MOVIMOT MM B for Use According to Category 3D List of errors lt gt 7 3 List of errors Error codes can be evaluated by communicating with the external control using the MOVILINK profile or by means of the status LED see page 26 Errors Cause Remedy Communication timeout a No connection L RS RS between MOVIMOT and RS 485 master motor stops without error code Check the connection in particular the ground and repair b EMC effects Check the shielding of the data cables and improve if necessary c Incorrect type cyclical in acyclical protocol Time between the individual messages gt 1 s for protocol type cyclical Shorten message cycle or select acyclical DC link voltage too low sup ply system off detected motor stops without error code Check supply system leads and supply voltage f
40. with binary control SS 1 a aaa aaa aa a a al al a a aE TH TH D S 3 2 wn ocr 7p Q age gt 5 SHE g 5 OSG amp O D lt 22 205 oe OOo 3 moO 5 SPS Bese Z gt SSES 5 SG 1 8 2 E z External Independent fa Fre control evaluation unit with _ x restart interlock gt EERE EN ASL le G TLX Metal cabe entry 02844AEN 1 The independent evaluation unit must have a base insulation to securely separated electrical circuits 14 Operating Instructions MOVIMOT MM B for Use According to Category 3D Connection with MLA12A option 5 5 Connection with MLA12A option K11 TH TH o 2 5 g 2 ag 5 SHE 8 Bo 2 Sgen 29 gt 309 2 ox OOA T mo oes gt COD E Lo oO Io E gt S 22 oo Be EEE F g g 8 S SE 3 Per cc N I lt CGNs Flald Ames Se SS OC oe lt 0 goo gS c gt 5 oo Q 5 O me f s on Relay monitoring with restart interlock _ Connecting several MLA12A units MLA12A Setpoint converter x1 x9 x8 x7 x6 x5 with 24VDbc supply 0 Do 02845AEN
41. working brake Using the brake as a holding brake Parts of the brake are subject to wear during operation As a result regular in spection and maintenance are essential If the brake is used as a working brake the brake pad wear is the determining factor governing when to service the brake Do not allow the maximum permitted working air gap to be exceeded see Work done until adjustment working air gap braking torque of brake on page 37 The inspection and maintenance intervals can be calculated on the basis of the work done by the brake in each braking operation and the entire work done until adjustment see Work done until adjustment working air gap braking torque of brake on page 37 To do this please calculate the work done in each braking operation individually in ac cordance with the project planning documents Check the brake at the latest when it has performed the amount of work until reset at which point an adjustment is due The following parts of the brake are subject to wear and should be replaced if necessary see Fig 4 Brake disk 7 Annular spring 6 Pressure plate 8 Pressure rings and counter springs 10 b c e Brake springs 11 Also replace the self locking hexagon nuts 10e and the rubber sealing collar 5 after repeated disassembly assembly Brakes used as holding brakes are only subject to a small amount of lining wear How ever their mechanical transmission
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