Installation and Operating Instructions for ROBA -takt Control Unit Type

Transcription

1 Manufacturer s Declaration This product is intended f installation in a machine system, based on the machine directive 006/4/EC. It is fbidden to start use of the product until the machine system into which it should be built is operating in accdance with the EC directives. The product cresponds to the low voltage directive 006/95/EC. The product cresponds to the EMC directive 004/08/EC. Safety Regulations Danger! To prevent injury damage, only professionals and specialists should wk on the devices, following the relevant standards and directives. Please read the Installation and Operational Instructions carefully befe installation and initial operation of the device. Danger of death on touching voltage-carrying cables and components Befe opening the device, switch off the input voltage and wait f 5 minutes Electronic devices cannot be guaranteed fail-safe Only wk on this device when it is de-energised. Protect against inadvertent switch-on Warning: Without a confmity inspection, this product is not suitable f use in areas where there is a high danger of explosion. This statement is based on directive 94/9 EC (ATEX directive). Application This unit is used to start, stop and to position by switching and controlling the mayr -clutch-brake units. Function The ROBA -takt control unit operates accding to the principle of a clocked switching controller with a frequency of 8 khz. Its coil is energised by actuating the sens f clutch and brake. A temperature monit protects the unit from overheating. Should the temperature exceed >80 C, the coil voltage is switched off. The LED excess temperature unit lights up red. A slope separation avoids simultaneous occurrence of clutch and brake tques. On overexcitation, the coil attraction time is reduced, allowing exact switching and positioning. Electrical Connection PE, L, N Connection input voltage +V / Ku / Sens connection f clutch +V / / Sens connection f brake / Coil connection f brake Ku / Ku Coil connection f clutch Dimensions (mm) 5 Coil connection Option (bare) Signalling relay Warning! Do not apply external voltage to the terminals +V. The coil connections,, Ku and Ku have a potential connection to the input voltage terminals L and N. Without overvoltage protection, all components connected to the control inputs must have a basic insulation (30 V) and must be protected against physical contact. 30VAC +/- 0% 50/60Hz Control inputs PE L N +V Ku +V } } Option (bare) Temperature moniting 8 Coil 4 VDC Coil 4 VDC Ku Ku Mains Control inputs 03 0 Page of 6

2 Function Description Function Input voltage switch-on Coil - is energised (priity) LED input voltage lights up green LED brake lights up yellow Functional sequence Start clutch is energised with overexcitation (if adjusted) After the overexcitation time is over, the coil voltage is applied LED clutch lights up green 3 Start brake is energised with overexcitation (if adjusted) After the overexcitation time is over, the coil voltage is applied LED brake lights up yellow 4 f the brake and clutch -50 ms, individually adjustable from the outside f clutch and brake 5 Overexcitation -50 ms, individually adjustable from the outside f clutch and brake 6 Excess temperature >80 C in the ROBA -takt control unit 7 Malfunction, 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 excess temperature lights up red LED malfunction lights up red Coil temperature moniting (only possible on coils with built-in PTC thermist) 8 Option, Signalling relay f malfunction signal Signalling relay f excess temperature and sht circuits Sht circuits at coil connections ROBA -takt control unit excess temperature Excess temperature of coil (only in combination 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 control /clutch Cod -sens operation Cod -sens operation Potential separation, brake sens Potential separation, clutch sens Overexcitation Cod Cod Cod Potential separation Cod Cod Cod No potential separation Overexcitation ON Overexcitation OFF Coding Potential separation Sens - brake Sens - clutch Function Coding (facty setting) Coding No potential separation Application f: Potential-free contacts SPS control External voltage NAMUR proximity switches PNP NC contact Potential separation Application f: Special senss, e.g. NPN senss (please contact the manufacturers)! Overexcitation Overexcitation OFF Application used to avoid unnecessary coil heating Overexcitation ON Application used f fast switching and exact positioning Control sens and clutch -Sens operation Application used when one common sens switches f clutch and brake -Sens operation Application used when individual senss switch f clutch and brake Warning! To avoid any malfunctions mistakes, please check the functions of the control elements and the operating variants befe changing the coding. Page 3 of 6

4 Adjustments Adjustment of slope separation The fitted adjustment potentiometers f clutches and brakes are accessible from the outside using a screw driver. A scale of -50 ms allows exact adjustment of the slope separation. The slope separation prevents simultaneous ocurrence of the clutch and brake slopes. The slope separation is used to optimise the positioning as well as to prevent unnecessary wear on the armature disk and additional coil-heating caused by friction. (Please observe the adjustments, see Table ROBA -takt Sizes and Switching Times). Overexcitation Time Adjustment: The fitted adjustment potentiometers f clutches and brakes are accessible from the outside using a screw driver. A graduation of -50 ms allows an exact adjustment of the overexcitation time. (Please observe the adjustments, see Table ROBA -takt Sizes and Switching Times as well as the Table Coding). With an overexcitation impulse of 35 VDC, the clutch brake can be energised when switched on to allow exact switching and positioning F application, the coding is to be changed from overexcitation OFF (manufacturer-side setting) to overexcitation ON, see Fig. Adjustments (unit). Technical Data Input voltage Current consumption No-load supply power 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 Manufacturer-side 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 Clamping conduct mm / AWG 6-4 cross section Weight.5 kg Protection fuse Input-side G-microfuse F/F (4 A MT, 5x0mm) Coil-side G- microfuse F3, the current is adapted to the ROBA -takt sizes. Always use the same replacement fuses Overvoltage categy two; one f connection to PELV/SELV (control wires) Overvoltage protection F installation in overvoltage categy III, a suitable overvoltage protection unit is required between the incoming voltage and the ROBA -takt control unit. ROBA -takt Control Unit Temperature Moniting A fitted temperature switch prevents overheating of the ROBA - takt control unit. Switch-off: Re-start: Reset: at >80 C operating temperature, the coil voltage is switched off. only possible after the ROBA -takt control unit has cooled down to below 40 C. by switching the input voltage off and on again Sht Circuit-proof Coil Connection If a sht circuit occurs between the coil connections and Ku and Ku, the coil voltage is switched off. Installation Ensure a well-conducting connection between the control unit housing and the metallic screw-on surface areas. Use toothed lock washers spring washers below the fixing screws. Ensure the cable connections are laid malfunction-free! Lay the control cables (+V / Ku / / +V / / ) separately and at a sufficient distance from high voltage current- carrying pulsating wires (PE / L / N / / / Ku / Ku). Resetting the sht circuit moniting: Switch off the input voltage Clear the sht circuit Switch on the input voltage. The LED input voltage lights up green, the LED brake lights up yellow. Continue with start clutch. Warning! Device is not protected against earth sht circuits! If connections,, Ku Ku touch earthed metal components, they can cause earth sht circuits and therefe device failure. Customer-side protection using an ELCB is necessary. Ensure an EMC-standardized installation! Page 4 of 6

5 Control elements / control function -sens operation -sens operation = () = (Ku) Application Function (condition-controlled) Function (slope-controlled) Contact potential-free (NO contact) V Ku V Close contact Open contact Close contact clutch Close contact brake (-) +4 VDC signal SPS control (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) BK V Ku BU V Sens Sens damped Sens clutch Sens brake PNP NC contact Proximity switch (0 up to 30 VDC) BN BK BU V Ku V Sens Sens damped Sens clutch Sens brake ROBA -takt -brake Unit Connection The ROBA -takt control unit is adjusted manufacturer-side to the size of each individual ROBA -takt clutch-brake unit. Connecting other sizes can result in malfunctions. Therefe, please compare the sizes on the Type tags befe putting the device into operation. The ROBA -takt control unit can be adapted to other ROBA -takt clutch-brake units by changing the plug-in jumper. Please contact the manufacturers! (Please observe the necessary adjustments, see Table ROBA -takt Sizes and Switching times) Comparison Table: ROBA -takt Control Unit ROBA -takt -brake Unit Type connect with Type 3/ /67_.0_.0 4/ /67_.0_.0 5/ /67_.0_.0 6/ /67_.0_.0 7/ /67_.0_.0 EMC-standardized Installation and ROBA -takt -brake Units Warning! The measures described f compliance with the EMC-guideline f the functional components ROBA -takt control unit and the ROBA -takt clutch-brake units are examined under labaty conditions at an approved establishment and cannot necessarily be transferred directly to the condition of a machine equipment due to deviations. The Installation and Operational Instructions refer exclusively to the use of mayr -ROBA -takt clutch-brake units. If other aggregates are used, the EMC directive standardisation cannot be guaranteed. Page 5 of 6

6 - ROBA -takt - clutch - brake unit Ce ferrite Type 74 7 (Würth-Elektronik) Shielded cable Ku 4x well-conducting connections between control unit and mounting plate ROBA -takt - Control Unit Type Metallic mounting plate Main earth in the terminal box Inductive proximity switch Overvoltage protection with installation in overvoltage categy III L PE N Ferritring Type (Würth-Elektronik) sens cable lead through 5x Shielded supply cable ROBA -takt Sizes and Switching Times ROBA -takt sizes Switching t Ku times [s] t Ku t without overexcitation with overexcitation (only connection time) t t Ku t t Ku t Ku t t overexcitation [ms] Recommended period of 0 * 0 * min. required slope separation [ms] with overexcitation overexcitation without Magnitude of overexcitation approx. 0 x nominal voltage (current limitation) Permitted friction wk with one single 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 DC-side switching with a heated coil. Deviations are possible depending on the installation, ambient temperature and the rectifier Type with which the aggregate is operated. * F operation with overexcitation and high switching frequencies (80-00 % of the diagram value), the recommended period of 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 if...? LED input voltage does not light up LED input voltage lights up red LED clutch does not light up LED brake does not light up LED excess temp. unit lights up red Coil clutch brake is not energised Page 6 of 6 Input voltage available? G-microfuse F/F o.k.? Check coil and coil connection f sht circuits earth contacts. Check sens clutch f crect contact, voltage damping. Check sens brake f crect contact, voltage damping. Excess temperature >80 C in the ROBA -takt control unit. Check functions of sens clutch and sens brake. Is microfuse F3 O.K? Check coils f interruptions.