FOLLOW THE INSTRUCTIONS GIVEN IN THIS MANUAL CAREFULLY. FAILURE TO DO SO MAY CAUSE CUSTOMER COMPLAINTS AND SERIOUS CALLBACKS.

Transcription

1 Installation and Operation Manual CEDES GridScan GRS Safety light curtain for industrial doors English EN Only GRS 7xx: Only GRS 7xx: EN IEC IMPORTANT NOTE FOLLOW THE INSTRUCTIONS GIVEN IN THIS MANUAL CAREFULLY. FAILURE TO DO SO MAY CAUSE CUSTOMER COMPLAINTS AND SERIOUS CALLBACKS. KEEP INSTRUCTION MANUAL ON SITE. CEDES Version th July 2011 Part No en

2 GridScan Installation and operation manual IMPORTANT INFORMATION GRIDSCAN SHOULD ONLY BE INSTALLED BY AUTHORIZED AND FULLY TRAINED PERSONNEL! GRIDSCAN IS ONLY A SAFETY PROTECTION DEVICE IF ALL INSTRUCTIONS IN THIS MANUAL AND IN THE RELATED DOCUMENTS ARE CAREFULLY FOLLOWED AND FULLY COMPLIED WITH. IN ADDITION, THE INSTALLER IS REQUIRED TO COMPLY WITH ALL LOCAL LAWS AND STANDARDS. SHOULD ANY OF THESE INSTRUCTIONS NOT BE CAREFULLY FOLLOWED, SERIOUS INJURY OR DEATH MAY OCCUR. THE INSTALLER OR SYSTEM INTEGRATER IS FULLY RESPONSIBLE FOR THE SAFE INTEGRATION OF THE SENSOR. IT IS THE SOLE RESPONSIBILITY OF THE PLANNER AND/OR INSTALLER AND/OR BUYER TO ENSURE THAT THIS PRODUCT IS USED ACCORDING TO ALL APPLICABLE CODES AND STANDARDS IN ORDER TO ENSURE SAFE OPERATION OF THE WHOLE APPLICATION. ANY ALTERATIONS TO THE DEVICE BY THE BUYER, INSTALLER OR USER MAY RESULT IN UNSAFE OPERATING CONDITIONS. CEDES IS NOT RESPONSIBLE FOR ANY LIABILITY OR WARRANTY CLAIM WHICH RESULT FROM SUCH MANIPULATION. DO NOT USE THIS PRODUCT IN EXPLOSIVE ATMOSPHERES, RADIOACTIVE ENVIRONMENTS OR FOR MEDICAL APPLICATIONS! USE ONLY SPECIFIC AND APPROVED DEVICES FOR SUCH APPLICATIONS, OTHERWISE SERIOUS INJURY OR DEATH OR DAMAGE TO PROPERTY MAY OCCUR! Ex Original version - Installation and operation manual CEDES Headquarters: CEDES AG Science Park CH-7302 Landquart Switzerland 2 CEDES/July 2011

3 Installation and operation manual Content 1. Introduction Functionality... 3 Safety integrity check Features Alignment and Reflection Type Definition System setup General instruction and precaution Installation Electrical connection and configuration Connection diagramm Configuration Configuration by signal lines Output signals Test input Start-Up Troubleshooting Maintenance and Disposal Maintenance Disposal Technical data Ordering information Certificates CE certificate GridScan Increased safety is achieved by the integrated blanking mode during the entire closing process of the door as all beams below the moving door edge maintain active object detection. Status LEDs for emitter and receiver power, output status and automatic beam blanking mode are provided for ease of use Safety integrity check Since GridScan is a safety device, appropriate measures have to be implemented by the user in order to maintain the required safety level. A testsignal has to be applied once in a closing/opening cycle of the door, best right before the hazardous motion. This test signal puts GridScan into a test mode whereby the device checks all relevant safety circuits. Only if this internal test is successful, the door is allowed to operate. Important safety notes: This test sequence must be implemented otherwise a safe operation cannot be guaranteed! Please refer to section 4.5. (Test input) for more application details. 1. Introduction GridScan consists of highly sophisticated detection elements for modern industrial door applications. Featuring automatic beam blanking and a cross section of just 25.8 x 20.6 mm, the optical emitter and receiver edges can be installed directly into the guide rails of the door. This increases safety and prevents collisions between a closing vertical door and people or objects in the closing area of the door. GridScan offers maximum safety according to the latest standards at an excellent price-performance ratio and is the perfect safety sensor solution for reliable high quality door operation. It is designed for easy installation and electrical integration into existing and new door systems Functionality Emitter edge and receiver edge build a protection area with straight beams in between. A built-in controller is integrated in the Rx edge. The device provides a signal output that is used to prevent hazardous motion of the closing door. If all infra-red beams are uninterrupted, the output signal is activated, allowing the door to close. In the case where one or more beams are interrupted, the output signal is deactivated in order to immediately stop the door closing procedure. Figure 1: Typical application example - the ideal mounting location of the optical edges is situated in the guide rails of the door Features GRS 7xx: certified according to EN and accordding to IEC Safeguards all types of high-speed and sectional doors Detects all forms of door movement (partial opening and closing) Direct integration into the door edges (dynamic beam blanking) Semiconductor output (PNP) Additional frequency safety signal FSS Status and signal transmission for additional information (e.g. Gate-End position) Configurable via signal lines Variable operating range Data interface for single beam information on request (RS485) Customer-specific OEM varieties CEDES/July

4 GridScan Installation and operation manual 1.4. Alignment and Reflection Make sure the receiver elements are located within the aperture angle of the emitter edge and vice versa. For knowing the aperture angle of your system please refer to chapter 2 (Type Definition). 2. Type Definition The naming of the GridScan is coded with GRS and a 3-digit number followed by the length of the light curtain and the number of elements of the edges. GRS xxx yy Length Elements E 5 Figure 2: Aperture angle 12 When there is a reflective surface parallel or near the safeguarded area reflections can occur. These can be eliminated while having enough space between the optical edges and the reflective surface. The bigger the aperture angle of the light curtain, the more space is needed. 5 R Figure 4: Type definition No. of elements per edge Length of the optical edges SY = System Tx = Emitter edge Rx = Receiver edge 0 = free Output: 0 = Semiconductor 5 = With RS485 Aperture angle: 6 = Open angles ±12 7 = Angle max. ±5 according to IEC E Optical axis Reflection Reflective surface R Figure 3: Reflective surface 4 CEDES/July 2011

5 Installation and operation manual GridScan 3. System setup The following drawing shows the setup of the GridScan system including the most important dimensions (Table 1). CEDES/July

6 GridScan Installation and operation manual Types GRS xx0- SY GRS xx0- SY GRS xx0- SY GRS xx0- SY Number of beams* A System length 1,976 2,176 2,376 2,576 B Position mounting hole C Position mounting hole , ,047 D Position mounting hole 3 1,928 2,128 1,654 1,786 E Position mounting hole ,329 2,527 F Position LED / emitter edge, color: Orange 1,752 1,952 2,152 2,352 G Position LED / receiver edge, color: Orange 1,652 1,852 2,052 2,252 H Position LED / receiver edge, color: Red, green 1,753 1,953 2,153 2,353 I Protection height (labeled) 1,900 2,100 2,300 2,500 K Lowest beam Table 1: System dimensions (all dimensions in mm) * Please note: The uppermost beam is not safety-active General instruction and precaution Never scratch or paint the front window. Do not drill additional holes into the profile. Unpack them just before installation in order to avoid damage. Do not bend or twist the edges! Oil and silicon may damage the cable and the profiles. Contamination must therefore be avoided at all times. Make sure to place the connection plugs for both the emitter and receiver at the same end. Emitter Receiver Emitter Receiver Correct Incorrect Tx Rx Rx Tx Tx Rx Other light sources Tx Rx Other light sources Even though GridScan is not sensitive to direct sunlight, it is better to avoid direct exposure. Avoid external interference from flashlights or other infrared light sources, such as photo eyes or light barriers. 6 CEDES/July 2011

7 Installation and operation manual 3.2. Installation It is recommended to carry out the system installation according to the following steps: 1. Check if the scope of delivery is complete: 1x receiver edge (Rx) 1x emitter edge (Tx) 1x synchronization cable, 10 m length 1x receiver connection cable, 5 m length 1x Installation and operation manual If GPI is required, it must be ordered seperately. Before mounting the GridScan please make sure that you have ten screws of max. OD of 4 mm and a fiiting screw driver at hand. 2. Switch off mains of the door and the door control unit for your own safety and mark clearly that this object is out of service 3. Mount receiver edge by using required number of screws with max. OD (outer diameter) of 4 mm into the guiding rail next to the door control unit. The receiver edge should be mounted on a plane surface. Orientation: The CEDES logo label marks the front site of the GridScan. Required number of screws: GRS xx0-sy : 10 screws GRS xx0-sy : 10 screws GRS xx0-sy : 8 screws GRS xx0-sy : 8 screws GridScan 4. Mount the grounding wire to adjacent earthed conductive material (e.g. guiding rail) by means of a screw with max. OD of 4 mm. Grounding wires of both, receiver and emitter edge must be connected to a functional earth. The functional earth can consist of a grounded or ungrounded massive conductive material, adjacent to the edges, e.g. the guiding rail. In case, the conductive material is used as a protective earth, a proper grounding concept for the entire installation is a mandatory prerequisite. The wires must not be extended otherwise EMC interference to the light curtain function cannot be entirely avoided. 5. Mount emitter edge by using required number of screws (see step 3) with max. OD of 4 mm into the guiding rail, being situated opposite to the receiver edge. The emitter edge should be mounted on a plane surface. Orientation: The CEDES logo label marks the front site of the GridScan. 6. Mount the grounding wire to adjacent conductive material (e.g. guiding rail) by means of a screw with max. OD of 4 mm. 7. Choose appropriate location at the door for GPI mounting. The GPI needs to be mounted in front of the receiver edge in order to reflect the auxiliary beam, being emitted by the receiver element. Positioning is dependent on the GPI orientation. The marked arrow on the front surface must point upwards. Do not over-tighten the mounting screws. Do not drill additional holes into the light curtain. Do not use countersink screws for fastening. Receiver edge Door controller Emitter edge Figure 5: Positioning of emitter and receiver edge CEDES/July

8 GridScan Installation and operation manual Figure 6: GPI positioning dimensions for vertically oriented GPI (standard) (all dimensions in mm) Figure 7: GPI positioning dimensions for horizontally oriented GPI (option) (all dimensions in mm) The distance between the GPI and the receiver edge should not exceed 100 mm at any point during door closure. When mounting the GPI, select a location where it will not be damaged during door motion. Make sure that the door deflection is in the range of ±5 mm at 100 mm distance between GPI and receiver edge (perpendicular to door flat) in order to ensure proper blanking functionality max. +5 mm max. -5 mm Figure 8: GPI reflection of auxiliary beam 8. Mount GPI by using countersink screws with maximum OD of 4 mm. 8 CEDES/July 2011

9 Installation and operation manual GridScan If the GPI can NOT be mounted directly in the appropriate position please use the enclosed mounting bracket. The mounting bracket can be bent at the perforations for making it fit to almost every type of door. The extends can be broken away. Figure 9: GPI mounting bracket for vertical and horizontal installation 9. Connect emitter and receiver edge using the synchronization cable provided. 10. Connect the receiver edge with the door control unit using the receiver connection cable. For proper function of the system, an appropriate power supply according to EN 60204, clause 4.3., has to be provided. Also, the connection between the GridScan and the power supply must not be longer than 30 m. The Output Signal Switching Device (OSSD) is a semiconductor signal output and cannot be used to directly drive a door drive. 4. Electrical connection and configuration 4.1. Connection diagramm T X R X Door Drive U SP (brown) Out In V (brown) Data (black) Out1: OSSD (black) GND (blue) GND (blue) Clock (white) In1: Test (white) Out 2 (pink) In2 / Out3 (green) In3 / RS485A (gray) In4 / RS485B (yellow) Wires not connected have to be separated and isolated. Figure 10: Connection diagram CEDES/July

10 GridScan Installation and operation manual 4.2. Configuration Output signals Input signals Status of protection field Door closed position signal Door blow-out signal FSS Frequency safety Signal Test input Operating range Operation mode RS485 Requirements High speed doors Sectional doors Signal lines Out 1 x Out 2 x In1 x In2 / Out 3 x x x In3 x x In4 x Signal behaviour 24 VDC Free End position reached Door out of rail Normal mode Reduced range High speed door 0 VDC Interrupted Not in end position All OK Test cycle Open / not connected Test cycle Standard range Sectional door 4.3. Configuration by signal lines The GridScan light curtain can be configured by two additional input signal lines. Operating range Operation mode In2 U SP : Reduced range Open: Standard range (open / not connected is the default behaviour) In3 U SP : High speed door Open: Sectional door In2: Operating range selection Description Range (m) Open / not Standard range connected U SP Reduced range Important note: If the input 2 is not connected to U SP, it is operated as output 3 with Door closed position signal or Door blow-out signal, depending on In3 signal. The signals at Out 3 will not be available while operating the GridScan in Reduced range mode In3: Operation mode High speed door operation mode The high speed operation mode is meant for doors without partial opening. The door is either open or closed. When an interruption of the light curtain occurs the door is to open again. GridScan has implemented a blanking mode including a continuous check of the door position. At the interruption the door position is reset and the light curtain is checking the whole safeguarding area again. If the door is not detected at the next position within a certain time, the GridScan switches the output to state interrupted. In addition, this status is signalled to the door control unit by activating Out 3 (door blow-out detection) ( Out 3) CEDES/July 2011

11 Installation and operation manual GridScan Blanking The GridScan is able to perform a door blanking by using the GPI (Gate Position Indicator). Blanking means that light beams are ignored when the closing gate interrupts them and therefore the light curtain does not switch the output. Figure 11: High speed door operation mode Restrictions for this operation mode: Continuous door movement without intermediate stops Door movement to the final end position. Sectional door operation mode This operation mode allows stop&go, partial opening and reverse movement of the door. The beams covered by the door are blanked. No time-out is calculated; i.e. the next beam is blanked out as soon as the door edge is detected at a certain position. If the light curtain is interrupted or the gate is being stopped during the opening or closing cycle, the GridScan remains in the current blanking status; i.e. the beams below the door edge are active and the beams at the door edge and above are blanked out. For a further door movement the signal for opening or closing has to be sent again. Figure 12: Sectional door operation mode The GridScan detects the GPI mounted at the gate and moving downwards in front of the GridScan receiver edge. The topmost light beam is only activated for GPI detection; i.e. it is not an active beam for safety protection. All beam states and the current GPI position are reset at power-up; i.e. theses states are not saved at a power failure. Figure 13: Blanking 4.4. Output signals OSSD PNP output FSS Frequency Safety Signal Door closed position signal (for sectional doors) Door blow-out signal (for high speed doors) Out 1 (output only) High: Free Low: Interrupted Out 2 (output only) 1 khz: Free Low: Interrupted Out 3 (out- and input) High: End position reached Low: Not in end position High: Door out of rail Low: OK RS485 With the RS485 interface the status of every single beam is available. Therefore not all the configuration possibilities are necessary. The RS485 interface is customer related. For more information or defining the protocol please contact your local CEDES representative. CEDES/July

12 GridScan Installation and operation manual Out 1 / Out 2: Output signals Time OSSD output Light beams Free Interrupted Response time t 1 < 50 ms Output off time t 2 > 80 ms Rise time t 3 < 100 ms OSSD (Out 1) FSS (Out 2) ON OFF ON OFF t 1 t 3 Out 2: FSS signal Light curtain status Free FSS output Frequency Signal Amplitude 400 Hz 2 KHz Square-wave signal 50% duty cycle GND* 5 V t 2 Interrupted 0 - GND* Test cycle 0 - GND* * plus saturation voltage Figure 14: Output signals (values based on a GridScan GRS with 20 elements) Out 3: Door position signal End position detection The light curtain GridScan can detect the doors fully closed position. The output signal Door closed position is activated when the door obstructs the two under-most beams. Door blow-out signal The GridScan monitors the continuous move of the door. If the door is not detected at the next beam position, the output switches to Out 3. In addition, the OSSD output switches to interrupted before the GridScan is reset.. This status is reset by the next test signal or when the door is being recognized again. Door position Open Closed Door closed position (Out 3) USP GND Figure 15: End position detection Figure 16: Door blow-out behaviour Conditions: GPI in one of the lower elements 1 to 4. This must not necessarily be the lowest position (No. 1); i.e. the door may reach the end position and the GPI is at the third or second last element. This depends on the GPI mounting position at the door edge and the distance between the optical elements. Lowest light beam permanently interrupted by the door edge Response time t1 30 ms Output off time t ms Figure 17: Door blow-out behaviour 12 CEDES/July 2011

13 Installation and operation manual 4.5. Test input To ensure safe operation, the user must integrate safety mechanism. By using a test signal and a supervision of the Output Signal Switching Device (OSSD) response of the test input signal the safe functioning of GridScan can be guaranteed. This test signal puts GridScan into a test mode whereby the device checks all relevant safety circuits excluding the OSSD. If this internal test is successful and the test signal is put to high, the OSSD will follow the state of the light curtain. If this internal test fails, the OSSD remains in the OFF state and prevents the door from operating. 1. In normal operation the test input is on high when the gate is moving. In this state, the OSSD output follows the state of the protection field. GridScan 2. If the door moves to the upper end position, the test input must switch to low, so that the internal test can be carried out. The light curtain will start testing its internal safety functions. Within 5 20 ms after the test signal goes from high to low, the OSSD is switched off. 3. If this internal test has been completed successfully (no error), all light beams are uninterrupted and the test signal changes its state from low to high, the OSSD output changes its state to ON following the timing in Figure 18 and allows the door to move. 4. If the internal safety check detects a failure of GridScan, it means that the device has lost its safety functionality; the status of the OSSD output remains in the OFF state and will not allow the door to move. Time Value Response time on test t ms Test signal time t 5 > t 4 Restart time t 6 < 100 ms Test input HIGH Test input LOW OSSD HIGH OSSD LOW Value > 9.0 V < 5.0 V > 7.5 V < 3.5 V Figure 18: Timing diagram (values based on a GridScan GRS with 20 elements) 5. Start-Up 1. Switch on mains and power up the door control unit. 2. LED on emitter edge must illuminate continuously with orange colour. 3. Upper LED on receiver edge must illuminate continuously with green colour provided that no test sequence is carried out and no safety beam is obstructed. 4. Lower LED on receiver edge must illuminate continuously with orange colour. 5. Check if upper LED on receiver edge switches from green to red colour upon obstruction of any safety beam. 6. Check if upper LED on receiver edge switches from red to green colour when obstruction is removed again. 7. It is recommended to perform a test procedure generating a test signal from the door control unit to the GridScan in order to check its proper response. When the test sequence is executed, the upper LED switches from green to red colour. After completion of test sequence, the LED switches back from red to green colour. 8. Start the downward movement of the door. If the installation has been properly carried out, the door closes completely without switching the OSSD. 9. In case any malfunction appears during operation, please refer to chapter 6. Troubleshooting. CEDES/July

14 GridScan Installation and operation manual 6. Troubleshooting When the door is not working properly please refer to the status LEDs if there an error occurred. Receiver output status LED s: Green Red Status Light curtain free; OSSD on Light curtain interrupted; OSSD off (in safe state) Receiver blanking status LED: Orange Status Blanking mode active Blanking mode inactive Fault Emitter power status LED: Orange Status Power OK No power or power not within the limits = LED on = LED off = LED flashing Fault (overload, wrong connection); OSSD off (in safe state) When according to the status LEDs everything should be alright but still the performance of the GridScan is not as meant, please check the connection and the configuration of the light curtain again (section 4, 5, and 6). Also check the mounting position of the GPI (section 3.2). Wires not connected have to be separated and isolated. 7. Maintenance and Disposal 7.1. Maintenance Although GridScan does not need regular maintenance, a periodical functional check is strongly recommended as follows: Clean the front surface with a soft towel and a little soap water from dust or dirt. Confirm edges are fastened securely in the guide rails. Confirm cables are routed properly. Clean the front surface of the GPI with a soft tissue from dust or dirt. Confirm GPI is fastened securely to the door Disposal The light curtain should only be replaced if a similar protection device is installed. Disposal should be done using the most up-to-date recycling technology according to local rules and laws. There are no harmful materials used in the design and manufacture of the light curtain. Traces of such dangerous materials could be used in the electronic components but not in quantities that are harmful to health. Important notes: Never use any solvents, cleaners or mechanically abrasive towels as well as high pressure water to clean the edges. The front window may be damaged! Please also avoid scratching the edges while cleaning CEDES/July 2011

15 Installation and operation manual GridScan 8. Technical data Optical Operating range - Standard m - Reduced range m Protection height Up to 2.5 m Number of elements 2 50 Resolution 50 / 200 mm Maximal angle of paraxial detection according to IEC : - GRS 7xx Rx: ±5 at 3 m, Tx: ±5 at 3 m Max. angle of paraxial detection: - GRS 6xx Rx: ±12 at 3 m, Tx: ±5 at 3 m Maximal ambient light 100,000 Lux Mechanical Dimensions ( w x h x l) 20.6 x 25.8 x max 2,576 mm Housing material Polycarbonate, black Enclosure rating IP65 Temperature range C (operation), C (storage) Electrical Supply voltage U SP VDC Ripple at U SP Max. 10% Current consumption at 24 VDC < 100 ma (without load) Output type 3 x semiconductor Output load Max. 80 ma, 500 nf Response time OSSD Max. 50 ms at 20 elements Door speed m/s Connection cable and Material PVC, black electrical connection Diameter Ø 5.7 mm Length 5 m Connector 8-Pin Mini-DIN8 Wires AWG26 Pin assignment - blue GND (0 V) - black Out 1 - OSSD - gray In3 / RS485A - pink Out 2 - FSS - green In2 / Out 3 - brown U SP (10 30 V) - white In1-Test input - yellow In4 / RS485A Sync cable Material PVC, black Diameter Ø 3.5 mm Length 10 m Connector 4-Pin M8 Wires AWG26 Pin assignment - brown U SP (10 30 V) - black Data - blue GND (0 V) - white Clock General Safety category EN (GRS 7xx only) IEC Type 2 AOPD (GRS 7xx only) EN Cat. 2 PL D, EN SIL CL 2 Eye safety EN EMC emission EN EMC immunity EN Vibration EN Shock EN Certificates CE, TÜV RoHS Fulfilled 2002/95/EC CEDES/July

16 GridScan Installation and operation manual 9. Ordering information System Part No. Device type Description GRS 700-SY GRS 700-SY GRS 700-SY GRS 700-SY GRS 750-SY GRS 750-SY GRS 750-SY GRS 750-SY GRS 600-SY GRS 600-SY GRS 600-SY GRS 600-SY Light curtain system, 2,500 mm protection height, 20 elements, ±5 aperture angle, semiconductor output, 5 m connection cable, 10 m synchronization cable Light curtain system, 2,300 mm protection height, 20 elements, ±5 aperture angle, semiconductor output, cables Light curtain system, 2,100 mm protection height, 18 elements, ±5 aperture angle, semiconductor output, cables Light curtain system, 1,900 mm protection height, 18 elements, ±5 aperture angle, semiconductor output, cables Light curtain system, 2,500 mm protection height, 20 elements, ±5 aperture angle, RS485 interface, cables Light curtain system, 2,300 mm protection height, 20 elements, ±5 aperture angle, RS485 interface, cables Light curtain system, 2,100 mm protection height, 18 elements, ±5 aperture angle, RS485 interface, cables Light curtain system, 1,900 mm protection height, 18 elements, ±5 aperture angle, RS485 interface, cables Light curtain system, 2,500 mm protection height, 20 elements, ±12 aperture angle, semiconductor output, cables Light curtain system, 2,300 mm protection height, 20 elements, ±12 aperture angle, semiconductor output, cables Light curtain system, 2,100 mm protection height, 18 elements, ±12 aperture angle, semiconductor output, cables Light curtain system, 1,900 mm protection height, 18 elements, ±12 aperture angle, semiconductor output, cables Accessories Part No. Parts Description Mounting Kit GRS Mounting Kit with GPI for horizontal and vertical mounting, mounting brackets GRS 700-GPI vertical Gate Position Indicator, vertical mounting GRS 700-GPI horizontal Gate Position Indicator, horizontal mounting GPI mounting bracket For mounting the GPI on almost every door type Power line converter Extension cable, M8, 4 pol., male-female, 10 m Cable clamp Clip for Mini-DIN connector VAC, for 24 V sensors with up to 250 ma current consumption Extension cable for Rx-Tx synchronization, 10 m length Cover profile, left Cover profile for GridScan, 2578 mm length, zinc plated Cover profile, right Cover profile for GridScan, 2578 mm length, zinc plated 16 CEDES/Mai 2011

17 Installation and operation manual GridScan 10. Certificates CE certificate GRS 6xx CEDES/July

18 GridScan Installation and operation manual CE certificate GRS CEDES/Mai 2011

19 Installation and operation manual GridScan TÜV certificate CEDES/July

20 GridScan Installation and operation manual CEDES AG / Switzerland Tel Fax info@cedes.com CEDES AG is certified according to ISO 9001: CEDES AG reserves the right to modify or change technical data without prior notice.