Installation and Operating Instructions for ROBA -takt Switch Gear Type

Transcription

1 Manufacturer s declaration The ROBA -takt switch gear is a component in compliance with the machine guide line 98/37/EC which is determined f an installation into a machine equipment. An initial start-up is prohibited until it has been noticed that the machinery the equipment into which this product shall be incpated, cresponds to the EC-guidelines. The product cresponds to the lowvoltage directive 73/3/EEC. The product cresponds to the EMC-directive 89/336/EEC. Safety regulations Attention! Only qualified and well-trained specialists may wk on the units under observance of the valid standards and guidelines to avoid any personal injury damages to components. The installation and operating instructions must be read carefully. Hazardous conditions when contacting hot connections and / components. Switch-off the input voltage befe opening the unit and wait f 5 minutes. Electronic units are generally not fail-safe. Only wk in a de-energized condition and secure it against unintended reconnection. Note: Based on the guideline 94/9/EC (ATEX-guideline) this product is not suitable f the application in potential explosive areas without evaluation of the confmity. Application Start stop and positioning by switching and controlling of mayr clutch brake combinations and mayr ROBA -takt clutch brake units. Function The ROBA -takt switch gear operates accding to the principle of pulse width modulation with a frequency of 8 khz. The cresponding coil will be energised by actuating the senss f clutch and brake. An overtemperature monit protects the unit from overheating. In case of a temperature of >80 C the coil voltage is switched-off. The LED overtemperature unit lights red. A slope separation prevents simultaneous appearance of clutch and brake tques. An overexcitation of the coil during switching-on reduces the attraction time and allows an exact switching and positioning. Note: The overexcitation can only be applied with the coding overexcitation ON. Dimension (mm) Electric connection PE, L, N input voltage +V / Ku / sens connection f clutch +V / / sens connection f brake / coil connection f brake Ku / Ku coil connection f clutch Attention! Do not apply any external voltage to the terminals +V. The coil connections,, Ku and Ku have potential connection to the input voltage terminals L and N. Without the overvoltage protection unit, all components connected to the control inputs must be with basic insulation (30 V) and protected against physical contact. 30VAC +/- 0% 50/60Hz Control inputs PE L N +V Ku +V 5 Coil connection Option (bare) Signalling relay Mains Control inputs Option (bare) Temperature moniting 8 } } 03 Coil 4 VDC Coil 4 VDC Ku Ku 0 Page of 6

2 Functional description Function Switch-on of the input voltage coil is energised (priity) LED input voltage lights green LED brake lights yellow Functional sequence Start clutch is energised with overexcitation (if adjusted) After time out of the overexcitation time the coil voltage applies LED clutch lights green 3 Start brake is energised with overexcitation (if adjusted) After time out of the overexcitation time the coil voltage applies LED brake lights yellow 4 f the brake and clutch -50 ms, individually adjustable f clutch and brake from the outside 5 Overexcitation -50 ms, individually adjustable f clutch and brake from the outside 6 Overtemperature >80 C in the ROBA -takt switch gear 7 Fault, sht circuits at brake, brake, clutch and / clutch Option, Temperature moniting of the coil > +30 C The coil voltage is switched off at >80 C LED overtemperature lights red LED fault lights red Coil temperature moniting (only possible with coils with built in PTC thermist) 8 Option, Signal relay f err signal Signal relay f overtemperature and sht circuits Sht circuits at coil connections Overtemperature of the ROBA -takt switch gear Overtemperature of the coil (only together with Option ) Functional sequence voltage current voltage current Overexcitation Overexcitation 35 VDC-overexcitation Voltage with current limitation 4 VDC-coil voltage Limited current with overexcitation Current with 4 VDC coil voltage 35 VDC-overexcitation Voltage with current limitation 4 VDC-coil voltage Limited current with overexcitation Current with 4 VDC coil voltage LED Mains LED LED Mains Mains OFF ON Start ON t Page of 6

3 Adjustments (unit) clutch Overexcitation clutch Overexcitation brake brake Sens trigger selection /clutch Cod -sens-operation (facty setting) Cod -sens-operation Floating sens brake Floating sens clutch Overexcitation Cod Cod Cod Floating Cod Cod Cod Non floating (Facty setting) (Facty setting) Overexcitation ON Overexcitation OFF (Facty setting) Coding Potential separation Sens - brake Sens - clutch Function Coding (facty setting) Coding Non floating Application f: dry contacts PLC trigger external voltage NAMUR proximity sens PNP NC Floating Application f: with special - sens, e.g. NPN (please contact the facty!) Overexcitation Overexcitation OFF Application, to avoid an unnecessary warm-up of the coils. Overexcitation ON Application, when fast switching and exact positioning is required. Drive sens brake and clutch Sens operation Application, when it is switched with one common sens f clutch and brake. Sens operation Application, when it is switched f clutch and brake with one sens each. Attention! To avoid any malfunctions troubles, please check the operating functions of the control elements befe changing the coding. Page 3 of 6

4 Adjustments Adjustment of the slope separation The mounted adjustment potentiometer f clutches and brakes are accessible from the outside by the aid of a screw driver. A scale of -50 ms allows an exact adjustment of the slope separation. The slope separation prevents the simultaneous interaction of the clutch and brake slopes. The slope separation is used to optimise the positioning as well as to prevent an unnecessary wear of the armature disk and an additional warm-up of the coil caused by friction. (Observe the adjustments, see Table ROBA -takt sizes and switching times). Adjustment of the overexcitation time The mounted adjustment potentiometers f clutch and brake are accessible from the outside by the aid of a screw driver. A graduation of -50 ms allows an exact adjustment of the overexcitation time. (Observe the adjustments, see Table ROBA -takt sizes and switching times as well as Table coding). With an overexcitation impulse of 35 VDC the clutch brake can be energised during switching-on to allow an exact switching and positioning F application the coding is to be changed from overexcitation OFF (facty setting) to overexcitation ON, see Fig. settings (unit). Technical data Input voltage Current consumption Idle power consumption Coil NOM-voltage Coil NOM-power Coil NOM-current Coil-overexcitation 30 VAC ±0 %, Hz max. 4 Amp./00 % duty cycle < 7 Watt 4 VDC max. 96 Watt facty setting to mayr -ROBA -takt-size max. 35 VDC Current limitation is adapted to the respective coil size. Overexcitation time -50 ms ( 30 % up to +60 %), externally adjustable (only applicable with coding overexcitation ON ) -50 ms ( 5 % to +30 %), externally adjustable Protection IP 0 Ambient temperature 0 C up to +50 C Stage temperature -0 C up to +70 C Conduct cross section 0,4-,5 mm / AWG 6-4 Weight,5 kg / 3,3 lb Fuse protection Mains fuse Load fuse Built in temperature switch F/F, 4A (M), IEC 5x0mm) F3, the current is adapted to the ROBA -takt sizes. Always use the same spare fuses. Overvoltage categy II (two), EN /998 Overvoltage protection F the installation in overvoltage categy III, a suitable overvoltage protection unit is required between the input voltage and the ROBA -takt switch gear. Temperature moniting of the ROBA -takt switch gear A fitted temperature switch prevents overheating of the ROBA - takt switch gear. Switch OFF: Re-start: Reset: at >80 C operating temperature the coil voltage gets switched off. only possible, when the ROBA -takt switch gear cooled down below 40 C. by switching the input voltage OFF and ON Sht-circuit proof coil connection In case of a sht circuit between the coil connections and as well as Ku and Ku the coil voltage is switched-off. Installation Assure well conducting connections between the switch gear housing and the metallic fastening areas. Use tooth lock spring washers below the fixing screws. Trouble-free wiring! Routing of control wiring (+V / Ku / / +V / / ) has to be separately and in sufficient distance from high-voltage current carrying pulsating wires (PE / L / N / / / Ku / Ku). Reset of the sht circuit moniting: switch off input voltage remove sht circuit switch on input voltage, LED input voltage lights green, LED brake lights yellow. Continue with start-clutch. Attention! Earth shts are not protected! Connections,, Ku Ku against earthed metal components cause shts and therefe failures of the units. A residual current circuit breaker protection is required by the customer. An EMC-cresponding installation is to be observed! Page 4 of 6

5 Control elements/ - function sens operation sens operation = () = (Ku) Application Function (state controlled) Function (slope controlled) Contact potential-free (make contact) V Ku V Close contact Open contact Close contact clutch close contact brake (-) +4 VDC signal PLC (0 up to 30 VDC) (0-30 VDC) (+) V Ku V 0 VDC signal +4 VDC signal to clutch +4 VDC signal to brake External voltage (0 up to 30 VDC) (-) VDC signal (0-30 VDC) (+) V Ku V 0 VDC signal VDC signal to clutch VDC signal to brake NAMUR Proximity switch (0 up to 30 VDC) sw bl V Ku V Sens Sens damped Sens clutch sens brake PNP break contact Proximity switch (0 up to 30 VDC) br sw bl V Ku V Sens Sens damped Sens clutch sens brake Connection of ROBA -takt clutch brake units The ROBA -takt switch gear is adjusted to the cresponding size of the ROBA -takt clutch brake unit at the facty. In case other sizes are connected malfunctions can be caused. Therefe, compare the sizes on the Type tags in advance. The ROBA -takt switch gear can be adjusted to another size of the ROBA -takt clutch brake unit by changing the plug-in jumper. Please contact the facty befe! (Observe the adjustments, see Table ROBA -takt sizes and switching times) Comparison table: ROBA -takt switch gear ROBA -takt clutch brake unit Type connected with Type 3/ /67_.0_.0 4/ /67_.0_.0 5/ /67_.0_.0 6/ /67_.0_.0 7/ /67_.0_.0 EMC-confm installation ROBA -takt switch gear Type and ROBA -takt clutch brake unit Attention! The described measures f compliance with the EMC-guideline f the functional-component ROBA -takt switch gear and ROBA -takt clutch brake unit are examined under labaty conditions in an approved test house and in case of deviations cannot necessarily be transferred obligatily to the condition of a machine equipment. The installation instruction exclusively refers to the use of mayr -ROBA -takt clutch brake units. If other clutch brake units are used the compliance of the EMC-guideline is not guaranteed. Page 5 of 6

6 - ROBA -takt - clutch brake unit Ce ferrite Type 74 7 (Würth-Elektronik) Cable shield Ku 4x well conducting connections between switch gear and switch board ROBA -takt -switch gear Type Metallic switch board Main earth in the terminal box Inductive proximity switch Overvoltage protection with installation in overvoltage categy III L PE N Ferritring Type (Würth-Elektronik) transmitter cable 5 x led through Shielded supply lead ROBA -takt sizes and switching times ROBA -takt sizes Switching t Ku 0,00 0,05 0,00 0,030 0,045 times [s] t Ku 0,045 0,065 0,080 0,50 0,00 t 0,006 0,008 0,00 0,05 0,05 without overexcitation with overexcitation (only switch on time) t 0,035 0,040 0,055 0,00 0,50 t Ku 0,0 0,00 0,045 0,060 0,090 t 0,00 0,08 0,030 0,060 0,090 t Ku 0,003 0,005 0,007 0,00 0,05 t Ku 0,05 0,035 0,040 0,075 0,00 t 0,00 0,003 0,004 0,006 0,008 t 0,00 0,0 0,030 0,050 0,075 overexcitation [ms] Recommended period of the 0 * 0 * min. required slope separation [ms] with overexcitation overexcitation without Amplitude of the overexcitation approx. 0 x nominal voltage (current limitation) Perm. friction wk with unique switching QE [J] 3,8x0 3 6,x0 3 9x0 3 5x0 3 5x0 3 Total friction wk Qtot. [J],5x0 7 44x0 7 87x0 7 7x x0 7 The switching times are valid f switching on the DC current side with a warm coil. Deviations are possible depending on the mounting situation, ambient temperature and kind of rectification with which the clutch brake unit is operated. * In case of an operation with overexcitation and high switching frequency (80-00 % of the diagram value), the recommended period of the overexcitation accding to the Table must not be exceeded. ON OFF ON [Nm] M ML t Ku t 3 Ku t Ku ta t Ku t 0, Mk 0, Mk t t t 3 ty Time t Time t What must be done when...? LED input voltage does not light LED input voltage lights red LED clutch does not light LED brake does not light LED overtemp.- unit lights red Coil clutch brake is not energised Page 6 of 6 Input voltage available? Fuses F/F ok? Check coil and coil connection as to sht mass circuits. Check sens clutch as to crect contact, voltage damping. Check sens brake as to crect contact, voltage damping. Overtemperature >80 C in the ROBA -takt switch gear. Check functions sens clutch and sens brake. Is fuse F3 ok? Check coils as to interruption.