Encontrará el manual de instrucciones actual en su idioma oficial de la UE en nuestra página de Internet

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1 1 About this document... pages 1 to 8 Translation of the original operating instructions 1.1 Function This operating instructions manual provides all the information you need for the mounting, set-up and commissioning to ensure the safe operation and disassembly of the safety-monitoring module. The operating instructions must be available in a legible condition and a complete version in the vicinity of the device. 1.2 Target group: authorised qualified personnel All operations described in this operating instructions manual must be carried out by trained specialist personnel, authorised by the plant operator only. FR NL Vous trouverez la version actuelle du mode d emploi dans votre langue nationale officielle sur l Internet, U vindt de huidige versie van de gebruikshandleiding in uw officiële landstaal op het Internet, ES IT Encontrará el manual de instrucciones actual en su idioma oficial de la UE en nuestra página de Internet Il manuale d istruzioni aggiornato nella vostra lingua (lingua ufficiale UE) è scaricabile in Internet all indirizzo, Please make sure that you have read and understood these operating instructions and that you know all applicable legislations regarding occupational safety and accident prevention prior to installation and putting the component into operation. The machine builder must carefully select the harmonised standards to be complied with as well as other technical specifications for the selection, mounting and integration of the components. JP EU 公用語で書かれた最新の取扱説明書は インターネッ ( からダウンロードできます 1.3 Explanation of the symbols used Information, hint, note: This symbol is used for identifying useful additional information / Index: 88/10 / Teile-Nr Content 1 About this document 1.1 Function Target group: authorised qualified personnel Explanation of the symbols used Appropriate use General safety instructions Warning about misuse Exclusion of liability Product description 2.1 Ordering code Special versions Destination and use Technical data Safety classification Mounting 3.1 General mounting instructions Dimensions Electrical connection 4.1 General information for electrical connection Operating principle and settings 5.1 LED functions Description of the terminals Notes Set-up and maintenance 6.1 Functional testing Maintenance Disassembly and disposal 7.1 Disassembly Disposal Appendix 8.1 Wiring example EC Declaration of conformity Caution: Failure to comply with this warning notice could lead to failures or malfunctions. Warning: Failure to comply with this warning notice could lead to physical injury and/or damage to the machine. 1.4 Appropriate use The products described in these operating instructions are developed to execute safety-related functions as part of an entire plant or machine. It is the responsibility of the manufacturer of a machine or plant to ensure the proper functionality of the entire machinery or plant. The safety-monitoring module must be exclusively used in accordance with the versions listed below or for the applications authorised by the manufacturer. Detailed information regarding the range of applications can be found in the chapter "Product description". 1.5 General safety instructions The user must observe the safety instructions in this operating instructions manual, the country-specific installation standards as well as all prevailing safety regulations and accident prevention rules. Further technical information can be found in the Elan catalogues or in the online catalogue on the Internet: The information contained in this operating instructions manual is provided without liability and is subject to technical modifications. There are no residual risks, provided that the safety instructions as well as the instructions regarding mounting, commissioning, operation and maintenance are observed. 1.6 Warning about misuse In case of inadequate or improper use or manipulations of the safety-monitoring module, personal hazards or damage to machinery or plant components cannot be excluded. The relevant requirements of the standard 1088 must be observed. 1

2 1.7 Exclusion of liability We shall accept no liability for damages and malfunctions resulting from defective mounting or failure to comply with this operating instructions manual. The manufacturer shall accept no liability for damages resulting from the use of unauthorised spare parts or accessories. For safety reasons, invasive work on the device as well as arbitrary repairs, conversions and modifications to the device are strictly forbidden; the manufacturer shall accept no liability for damages resulting from such invasive work, arbitrary repairs, conversions and/or modifications to the device. 2 Product description 2.1 Ordering code This operating instructions manual applies to the following types: ➀ No. Option Description ➀ /1 Customer-specific pre-adjustment in factory -B Customer-specific pre-adjustment in factory -PO Customer-specific pre-adjustment in factory These safety-monitoring modules are designed as dual-channel standstill and movement monitors (set-up rotational velocity / speed). Only if the information described in this operating instructions manual are realised correctly, the safety function and therefore the compliance with the Machinery Directive is maintained. 2.2 Special versions For special versions, which are not listed in the order code below 2.1, these specifications apply accordingly, provided that they correspond to the standard version. 2.3 Destination and use The safety-monitoring modules for integration in safety circuits are designed for fitting in control cabinets. They are used for the safe evaluation of the signals of two externally installed frequency generators, which are functioning independently from one another (shaft circuit A: incremental shaft encoder and proximity switch; shaft circuit B: proximity switch and light barriers possible). The safety function is defined as the status change of the relay contacts when the upper or lower limit of the set limit value is exceeded. The safety-relevant current paths with the output contacts and meet the following requirements under observation of a B 10d value assessment (also refer to "Requirements of DIN ISO "): Control category 3 - PL d to DIN ISO SIL 2 to DIN SILCL 2 to DIN (meets the requirements of control category 3 to DIN 954-1) To determine the Performance Level (PL) of the entire safety function (e.g. sensor, logic, actuator) to DIN ISO , an analysis of all relevant components is required. 2.4 Technical data General data: Standards: IEC/ , ; ISO , IEC/ Climate resistance: Fixing: Snaps onto standard DIN rails to DIN Terminal designations: Material of the enclosure: glass-fibre, reinforced thermoplastic Material of the contacts: AgSnO, self-cleaning, positive drive Weight: 500 g Start conditions: Automatic Feedback circuit (Y/N): No Response time: Relay switching time typically 50 ms plus system response time, which depends on the generator frequency (i.e. approx. 50 ms + 1/f). The calculation must be based upon the generator with the lowest frequency. Standby delay: when voltage on: approx. 3 sec; Mechanical data: Connection type: Screw connection Cable section: min mm 2 / max. 2.5 mm 2 Connecting cable: rigid or flexible Tightening torque 0.6 Nm for the terminals: With removable terminals (Y/N): No Mechanical life: 10 million operations Electrical life: Derating curve available on request Resistance to shock: 10 g / 11 ms Resistance to vibrations Hz, amplitude 0.35 mm to : Ambient conditions: Ambient temperature: 0 C +50 C Storage and transport 40 C +85 C temperature: Protection class: Enclosure: IP 40 Terminals: IP 20 Wiring compartment: IP 54 Air clearances and creepage 4 kv/2 (basic insulation) distances to IEC/ : EMC rating: to EMC Directive Electrical data: Contact resistance in new state: max. 100 mω Power consumption: 4.1 VA Rated operating voltage U e : 24 VDC +15% / 10%, residual ripple max. 10% Rated current: 170 ma Max. fuse rating of the M 630 ma / 250 V operating voltage: Monitored inputs: Cross-wire detection (Y/N): No Wire breakage detection (Y/N): Yes Earth leakage detection (Y/N): Yes Number of NO contacts: 0 Number of NC contacts: 0 Conduction resistance: max. 40 Ω Outputs: Number of safety contacts: 2 Number of auxiliary contacts: 1 Number of signalling outputs: 0 Switching capacity of the safety contacts: Switching capacity of the auxiliary contacts: Fuse rating of the safety contacts: 13-14; 23-24: max. 230 VAC / 3 A ohmic (inductive in case of appropriate protective wiring) 31-32: 24 VDC / 2 A 4 A slow blow 2

3 Recommended fuse for 2 A slow blow the auxiliary contacts: Utilisation category AC-15 / DC-13: to : Dimensions (H/W/D): 83 mm 90 mm mm The data specified in this manual is applicable when the component is operated with rated operating voltage U e ±0%. 2.5 Safety classification Standards: ISO , IEC 61508, PL: up to d Control category: up to 3 DC: Stop 0: 90% DC < 99% (average) CCF: > 65 points SIL: up to 2 Service life: 20 years B 10d value (for one channel): Low voltages range 20%: 20,000,000 40%: 7,500,000 60%: 2,500,000 80%: 1,000,000 Maximum load 100%: 400,000 MTTF d B10d dop x hop n x 3600 s/h op 0,1 x n op t cycle For an average annual demand rate of n op = 126,720 cycles per year, Performance Level PL e can be obtained at maximum load. n op = average number of activations per year d op = average number of operating days per year h op = average number of operating hours per day t cycle = average demand rate of the safety function in s (e.g. 4 per hour = 1 per 15 min. = 900 s) (Specifications can vary depending on the application-specific parameters h op, d op and t cycle as well as the load.) 4 Electrical connection 4.1 General information for electrical connection The electrical connection may only be carried out by authorised personnel in a de-energised condition. Wiring examples: see appendix 5 Operating principle and settings 5.1 LED functions U B : Status supply voltage U N : Status operating voltage behind internal fuse 5.2 Description of the terminals Voltages: Inputs generator A: A1 A2 PE 24 V IN A 0 V M Inputs generator B: IN B 0 V M Outputs: VDC 0 VDC Earth connection +24 VDC (to be used for the voltage supply of the external generator A) Input generator A 0 V generator A Earth generator A Input generator B 0 V generator B Earth generator B First safety enabling circuit Second safety enabling circuit Auxiliary NC contact Potentiometer: RA / RB Setting channel A and B A1 (+) 24V IN A 0V M VDC R A R B 3 Mounting U N K A K B 3.1 General mounting instructions Mounting: snaps onto standard DIN rails to Snap the bottom of the enclosure slightly tilted forwards in the DIN rail and push down until it latches in position. Rel A Rel B A2 ( ) PE IN A 0V M Fig. 1 U B 3.2 Dimensions All measurements in mm. Device dimensions (H/W/D): 83 mm 90 mm mm 3

4 5.3 Notes To generate and execute a control command, the desired response time in the electrical safety current must basically always be taken into consideration. This time is determined on the one hand by a moment of inertia in the switching behaviour of the relay contacts on the output side of the device. The desired response time furthermore distinctively depends on the resolution of the generator. A generator with a relatively rough resolution requires a considerably longer time for comparing the individual measuring periods to each other compared to generators with a finer resolution. Besides the dual-channel structure and the dynamic operating principle with concluding safety relay level, the SSW devices feature a diverse redundancy in both channels with different component technology, i.e. channel A operates in TTL and channel B with CMOS logic. In this way, hazardous situations as a result of fault accumulation in the used electronic components can be considered to be excluded. SSW devices are suitable for applications with stringent safety requirements. Both generators must be separately supplied with voltage, in order to avoid two identical false informations on the SSW devices in case of a power failure. Out of simplicity, the SSW devices therefore are equipped with their own voltage source for one generator channel, whereas the second generator is supplied through the control system as usual. Due to the specific design of the SSW devices as standstill monitor, it must be observed that a control command of the SSW devices does not trigger a restart interlock, i.e. if necessary, an individual ON or RESET signal must be otherwise provided in the electrical safety circuit. The period length of the generator signals is continuously compared to the preset period length of the reference oscillator and transmitted as dynamic signal to the output level of the SSW devices, which includes a synchronism monitoring with a timeframe of 500 ms, two transmitters and two safety relay. The safety technology of the relay level is designed so that a control command is generated in case of a standstill signal (downward divergence of the limit value), when both channels have the same signal values and in case of a mouvement signal (upward divergence of the limit value), when one channel has exceeded the limit value. During the monitoring of the downward limit value divergence, both channels must have exceeded the lower limit of the preset limit value within a timeframe of 500 ms (adjustable in factory). If this is not the case, the safety relay level is locked, i.e. no control command is transmitted at the output level. Opening the enclosure Necessary to adjust the DIP switches located on the circuit board of the device (Fig. 2). To this effect, carefully separate the bottom part of the enclosure from the upper part by means of a suitable tool. a) b) Suitable generators Shaft circuit A: incremental shaft encoder, proximity switch Voltage range: U max 30 VDC (< 0.8 V > 2.2 V), > 5.5 V TTL Signal load: I max < 10 ma Frequency range: < 80 khz Shaft circuit B: proximity switch, light barrier Voltage range: U max 30 VDC (< 5.0 V > 5.5 V) Signal load: I max < 10 ma Frequency range: < 80 khz SSW devices detect and process the signals of two arbitrary digital generators, e.g. shaft encoders, proximity switches, light barriers, etc. As the mouvement signals are detected through dual-channel redundancy, all commercially available generators can be used, without any particular requirements as safety technology is regarded. Considering that generators with different signal quality and operating frequency can be connected to the SSW devices, the generator signals are initially prepared in the "input level" and "monitoring/standstill detection" parts of the control system, whereby a comparability of the signals of both channels is realised through splitters inside the device. The period length of the limit value for the control command is also set in this part of the control. Fig. 2 a) Pre-splitter T1 (DIP switches T1 T10 from top to bottom) b) Time range (DIP switches S1 S4 from top to bottom) Do not open the device when live! When the enclosure is open, the electrostatic discharge requirements must be respected and observed. After the setting is completed, the enclosure must be closed again. Only touch the components after electrical discharge! 4

5 Setting instructions (if the device has not been preset in factory) Calculation for the time channel setting: If value f exceeds 5 khz in the calculation, a pre-adjustment in the parent plant is required! Channel: A or B Pulse/revolution Pulse/rev. limit value f = Limit value rpm 60 Generator type Pre-splitter T Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter Hz Splitter 512 T = T = Result Result T1 f sec. Time range DIP 100 ms 4.8 sec ms 9.6 sec ms 24 sec. 3 1 sec. 48 sec. 4 Only switch the corresponding DIP switch ON depending on the result. Then execute the fine adjustment by means of the potentiometer in the enclosure cover. The calculation and the setting of the DIP switches must be executed for each channel (A + B) separately! For the standstill signal setting, a suitable limit value must be determined in terms of a relative standstill, i.e. the residual movement, which remains below the limit value, still must have come to an absolute standstill or a hazard-free situation under observance of an access speed of 1.6 m/sec. Setting the monitoring channels Prerequisite for adjusting the SSW devices according to the setting form: Identical resolution of the generator per revolution for each channel at the same rotational speed Generator impulses not 90 displaced 5 khz cut-off frequency Conditions requiring a system testing or pre-adjustment in the parent plant: Different rotational speed of the channels despite the same generator resolution Different generator resolution of the channels at identical rotational speed The calculated cut-off frequency of 5 khz is exceeded Fine adjustment of both monitoring channels: If the channels cannot be set compliant with the calculation form, both monitoring channels must be adjusted by means of the spindle potentiometers R A and R B. The spindle potentiometers, which are assigned to the corresponding channel, are located in the enclosure cover. 1. Connect the device with the generator to the shaft encoder. 2. Switch on the operating voltage. The device is ready for operation after approx. 3 sec. 3. Set the shaft encoder constantly to the desired cut-off rotational speed 4. As soon as the LED are off, turn spindle potentiometer R A to the left until the LED s "K A " and "Rel A " are on 5. Now turn spindle potentiometer R A slowly to the right until the LED s "K A " and "Rel A " are off 6. Repeat step 4 (The execution of the steps 4 to 6 is necessary in order to provide for an accurate definition of the switching point for this channel.) 7. Repeat steps 4 to 6 with spindle potentiometer R B, in conjunction with the LED "K B " for channel B (During the set-up of the second channel, LED "Rel B " is not on during the adjustment. Due to the prior adjustment of channel A, the control for the safety realy of channel B was internally blocked in the device.) 8. Set the drive beyond the preset cut-off frequency 9. Now set the drive below the preset cut-off frequency 10. When the lower limit of the cut-off frequency is exceeded, the status of the enabling contacts of the must change 11. The device is now ready for operation When adjusting both channels, steps 4 to 7, the pulse sequence (measurement time) of the signal generator must be observed. The status of the LED's changes only after expiration of the preset measurement time. 5

6 Functional diagrams a) a) a1) b) b1) b) b1) c) c1) c2) c) d) d) e) f) f1) Fig. 3: Functional diagram normal operation a) Sensor A limit rotational speed b) Sensor B limit rotational speed b1) Max. time difference between channel A and channel B in case of lower limit value overrun approx. 0.5 sec. c) Relay A c1) Drop-out delay approx. 40 ms c2) Drop-out delay depending on the preset period length d) Relay B e) Enabling paths / f) U s f1) Pull-in delay ca. 3 sec. Sequence in case of normal operation: 1. When the operating voltage is switched on, both output relays A and B are energised after approx. 3 sec., thus closing the enabling contacts / When the upper limit of the limit rotational speed is exceeded, the relays A and B are de-energised after a drop-out delay of approx. 40 ms. The enabling contacts / are opened. 3. When the lower limit of the limit rotational speed is exceeded, the relays A and B will be energised with a time delay depending on the preset period length (measurement time). The enabling contacts / are closed. 4. Refer to step The maximum time difference between channel A and channel B is approx. 0.5 sec when the lower limit of the rotational speed is exceeded. If the maximum timeframe of channel A or channel B is exceeded (> 0.5 sec.), both output relays are mutually "locked" and no enabling signal will be emitted. e) Fig. 4: Functional diagram in case of fault a) Sensor A limit rotational speed a1) Sensor failure b) Sensor B limit rotational speed b1) Sensor failure c) Relay A d) Relay B e) Enabling paths / Sequence in case of fault: 1. In case of a failure of sensor B and channel A exceeding the upper limit of the rotational speed, relay A is de-energised, thus opening the enabling contactgs / If the lower limit of the limit rotational speed of sensor A is exceeded, relay B, which is still active, prevents relay A from being re-enabled. The enabling contacts / remain open. 3. Sensor A and sensor B exceed the upper limit of the rotational speed and relay B is de-energised (relay A remains de-energised). 4. Correct operation of the lower limit overrun of the limit rotational speed as described in the functional diagram "normal operation" 5. Correct operation of the upper limit overrun of the limit rotational speed as described in the functional diagram "normal operation". 6. Failure of sensor A during operation with overrun of the limit rotational speed: relay A is energised prevents relay B from being re-enabled when sensor B exceeds the lower limit overrun of the rotational speed again. The enabling contacts / remain open. 6

7 Setting report for SSW devices 6 Set-up and maintenance Company / customer: Device n (SSW device): Sensor design: Channel A Channel B 6.1 Functional testing The safety function of the safety-monitoring module must be tested. The following conditions must be previously checked and met: 1. Correct fixing 2. Check the integrity of the cable entry and connections 3. Check the safety-monitoring module's enclosure for damage. 4. Check the electrical function of the connected sensors and their influence on the safety-monitoring module and the downstream actuators Limit rotational speed (rpm): Resolution [Imp/U] Cut-off frequency [Hz]: Pre-splitter T1: Time range: 6.2 Maintenance A regular visual inspection and functional test, including the following steps, is recommended: 1. Check the correct fixing of the safety-monitoring module 2. Check the cable for damages 3. Check electrical function Damaged or defective components must be replaced. Set on (date): 7 Disassembly and disposal by: The set parameters must be registered on the sticker affixed to the enclosure by means of an unerasable marker. The safety-monitoring module is used in the following machine: Machine n : Machine type: 7.1 Disassembly The safety-monitoring module must be disassembled in a de-energised condition only. Unlock the bottom of the enclosure by means of a slot screwdriver, push up and hang out slightly tilted forwards. 7.2 Disposal The safety-monitoring module must be disposed of in an appropriate manner in accordance with the national prescriptions and legislations. Parameter settings checked: on: Signature by: 8 Appendix 8.1 Wiring example Note for preset SSW devices: To ensure the correct functionality and the associated safety aspects, any changes made by the user to the settings of the device parameters must be communicated in writing to the manufacturer (company Elan)! Note for SSW devices, which have not been set up: The proper parameter setting according to the enclosed setting instructions is realised by the user under his/her own responsibility. Reduced speed monitoring with testing (Fig. 5) Testing of the channels with the safety guard closed in automatic mode in case of upper or lower limit value overrun, i.e. status change of the output relays (SSW enabling signals bridged) 24VDC(+) a) A1 (+) 24V IN A 0V M The setting report must be joined to the machine documentation in accordance with the EC Machinery Directive! A2 ( ) PE IN B 0V M b) c) 0 VDC ( ) Fig. 5 a) Generator A b) Generator B c) to the safety-monitoring module 7

8 Appendix 8.2 EC Declaration of conformity EC Declaration of conformity Translation of the original declaration of conformity valid as of December 29, 2009 Elan Schaltelemente GmbH & Co. KG Im Ostpark Wettenberg Germany Internet: We hereby certify that the hereafter described safety components both in its basic design and construction conform to the applicable European Directives. Name of the safety component: Description of the safety component: for motor standstill or set-up rotational speed monitoring Harmonised EC-Directives: 2006/42/EC EC-Machinery Directive 2004/108/EC EMC-Directive Person authorized for the compilation of the technical documentation: Ulrich Loss Möddinghofe Wuppertal Notified body, which approved the full quality assurance system, referred to in Appendix X, 2006/42/EC: TÜV Rheinland Industrie Service GmbH Alboinstraße Berlin ID n : 0035 Place and date of issue: Wuppertal, October 6, B- Authorised signature Heinz Schmersal Managing Director Note The currently valid declaration of conformity can be downloaded from the internet at Elan Schaltelemente GmbH & Co. KG Im Ostpark 2, D Wettenberg Postfach 1109, D Wettenberg Telefon: +4 9 (0) Telefax (0) info-elan@schmersal.com Internet: 8