IPG Photonics LC 340.01-A.3.5/6, Operating Manual

Page 1: ...l LC 340 01 A 3 5 6 Current revision status Apr 4 2019 Laser Chiller LC 340 01 A 3 5 6 IPG Photonics Corporation 50 Old Webster Road Oxford MA 01540 USA Telephone 1 508 373 1157 Email support ipgphoto...

Page 2: ...indirectly under any patent or other intellectual property rights from use of the information provided herein IPG IPG Photonics and the IPG Logo are registered trademarks of IPG Photonics Corporation...

Page 3: ...Chiller ______________ Operator details Inventory number Installation location Keep for future use Index of contents 1 GENERAL INFORMATION 4 2 SAFETY AND ACCIDENT PREVENTION 5 3 TECHNICAL DATA 7 4 TRA...

Page 4: ...Introduction Please take the time to read and understand the information presented in this manual By carefully reading the manual before starting up the chiller you will be better able to ensure prope...

Page 5: ...instructions must be observed Protective guards that have been installed to prevent contact with moving parts may not be removed when the unit is being operated Lock out tag out procedures must be fol...

Page 6: ...uired conditions WARNING WARNING Refers to a potential personal hazard It requires a procedure that if not correctly followed may result in bodily harm to you and or others Do not proceed beyond the W...

Page 7: ...Depth mm 211 Width mm 500 Weight Without water filling kg 480 With water filling kg 600 3 4 Operating voltage 460 V 3 Phase 60 Hz Design point Cooling capacity kW 38 8 Heat load to the air kW 52 2 Air...

Page 8: ...e 50 Hz Design point Cooling capacity kW 34 Heat load to the air kW 42 5 Air inlet temperature C 33 Air flow m h 10000 Operating limits Max air inlet temperature C 40 Min air inlet temperature C 10 Mi...

Page 9: ...0 01 A 3 5 6 Current revision status Apr 4 2019 DI Water circuit Cooling capacity kW 1 Cooling water outlet temperature C 30 0 Stability of cooling water temperature C 0 5 Water content Litre 25 Water...

Page 10: ...Technical data Operating manual LC 340 01 A 3 5 6 Current revision status Apr 4 2019 3 6 Pump charts 3 6 1 Laser 60 Hz Dual Pumps 3 6 2 Optic 60 Hz...

Page 11: ...Technical data Operating manual LC 340 01 A 3 5 6 Current revision status Apr 4 2019 3 6 3 Laser 50 Hz Dual Pumps 3 6 4 Optic 50 Hz...

Page 12: ...RT If the chiller has to be moved to another location the water inside the tanks must be drained Take care during transportation not to damage the chiller If damage occurs the chiller must be checked...

Page 13: ...Transport Page 13 Operating manual LC 340 01 A 3 5 6 Current revision status Apr 4 2019 ADVICE Add Eyebolts for lifting by crane in accordance with DIN 580 WARNING WARNING ADVICE...

Page 14: ...moved to another location the water inside the tanks must be drained If the route of transport is not frost protected the complete unit has to be drained We strongly recommend disassembling the DI Ca...

Page 15: ...the air inlet of the chiller 5 4 Installation room according EN 378 1 tab C 1 EN 378 1 defines the practical critical value for a refrigerant as the maximum concentration where direct actions to escap...

Page 16: ...hiller ADVICE It s forbidden to use following materials for water piping mild steel galvanized steel We recommend to use following materials for water piping Cooling circuit Laser Copper or stainless...

Page 17: ...treatment concept is designed for a maximum system volume of 200 liters d Materials of the water system to be protected Stainless steel cooper and non ferrous metal 5 6 2 2 Chemicals Water treatment...

Page 18: ...C 5 7 Choke valves There is a choke valve installed on the water outlet of the optic pump This valve allows the water pressure to be adjusted in the optic circuit if necessary 5 8 Motor protection swi...

Page 19: ...DVICE The chiller has to be connected with a clockwise rotating field The factory warranty is void if the electrical connections to the chiller are not performed properly 5 10 Checking the electrical...

Page 20: ...edures and unplug the chiller from voltage supply Phases L1 and L2 have to be reversed by and an authorized skilled worker 5 11 Ventilating the pump Immersion pumps are self cooling Ventilating the pu...

Page 21: ...Piping and Instruments Diagram Page 21 Operating manual LC 340 01 A 3 5 6 Current revision status Apr 4 2019 6 PIPING AND INSTRMENTS DIAGRAM Figure 3 Piping and Instruments Diagram P I Diagram...

Page 22: ...sure sensor B9 monitors the pressure If the evaporating pressure goes lower than 3 9 bar there is the danger of icing the water section of the heat exchanger To avoid this the controller switches off...

Page 23: ...liquid refrigerant flows through the dehumidifier and the inspection glass to the expansion valve The expansion valve reduces the pressure of the liquid from condensing pressure to evaporating pressu...

Page 24: ...Piping and Instruments Diagram Page 24 Operating manual LC 340 01 A 3 5 6 Current revision status Apr 4 2019 Figure 6 Refrigerant module Sensor B9 Expansion valve Sight glass...

Page 25: ...pumps M4 1 M4 2 If the cooling water temperature is too low the heater E1 will heat up the water to the required temperature Component name Electric designation Measurement Operation Water pump 1 las...

Page 26: ...l LC 340 01 A 3 5 6 Current revision status Apr 4 2019 6 2 2 Optic cooling circuit The cooling water for the optic circuit is supplied by pump M5 If the cooling water temperature is too low the heater...

Page 27: ...etic valve Y2 SOL 2 Conductivity of DI Water Liquid level switch B3 Refilling required Liquid level switch B4 Dry run protection pump Pressure sensor B7 Pressure optic circuit Temperature sensor B12 T...

Page 28: ...usting and maintenance work is only allowed for skilled workers Only properly trained technicians are allowed to adjust and maintain the electrical refrigerant components Anyone working on the chiller...

Page 29: ...s valve should be performed only by a skilled worker If the cooling water flow needed for the laser system is lower than the minimum water flow of the chiller the bypass valve has to be adjusted Figur...

Page 30: ...0 Hz operation It is recommended for 50 Hz operation that the valve be adjusted to 3 5 bar 7 4 2 Changing the connecting voltage 7 4 2 1 From 50 Hz to 60 Hz Set the bypass valve to 5 0bar see 7 4 1 7...

Page 31: ...d by personal protective equipment 7 5 Maintenance work 7 5 1 Inspection WARNING WARNING In case of irregular behaviour of the mechanical working components or abnormal noise the chiller must be switc...

Page 32: ...rNet will give a warning if the conductivity of the DI Water is out of range This is an indication that the DI Cartridge should be replaced The DI Cartridge and the water should be changed every 6 mon...

Page 33: ...m with the refrigerant Check the evaporating temperature If the evaporating temperature is below 5 C the refrigerant maybe low Please get in contact with our service department The moisture content of...

Page 34: ...Please contact IPG service for additional kits 7 6 Warnings and Alarms The following maintenance work will be requested in LaserNet Figure 11 LaserNet Warnings and Alarms 7 6 1 Water level warning Wa...

Page 35: ...r operation It is only a warning message that a temperature value is near limit Please check page Events in LaserNet for further information a Tap water temperature near limit Tap Water Temperature T...

Page 36: ...ing lamp Warnings Water pressure is lighting yellow Maintenance action This message will not influence the chiller operation It is only a warning message that a pressure value is near limit Please che...

Page 37: ...is near limit Following conditions will activate this warning massage DI water conductivity between 35 and 45 S cm DI Water conductivity MIN 35 S cm MAX 45 S cm Change the DI cartridge according 7 5...

Page 38: ...ons The electrical connection must be according to EN VDE IEC Norms or according to the corresponding local authorities The safety devices must not be deactivated 8 1 Repairs WARNING WARNING A repair...

Page 39: ...er level is lighting red In the page Events you will find detailed information about active alarm message a Fill up tap water tank b Fill up DI water tank Action This alarm will stop the chiller opera...

Page 40: ...C Tap water temperature lower than T MIN Tap water temperature higher than T MAX DI Water Temperature T MIN 24 0 C T MAX 40 0 C Hysteresis 0 5 C DI water temperature lower than T MIN DI water tempera...

Page 41: ...5 5 bar Tap water pressure lower than 1 0 bar Tap water pressure higher than 5 5 bar DI Water Pressure P MIN 1 0 bar P MAX 5 5 bar DI water pressure lower than 1 0 bar DI water pressure higher than 5...

Page 42: ...rm After solving the problem you can reset the alarm by pushing the reset button in LaserNet The red light will be switched off 8 2 5 OVERCURRENT ALARM 8 2 5 1 Laser cooling circuit Pump over current...

Page 43: ...he alarm After resolving the problem Reset the motor protection switch in position 1 Reset by pushing reset button in LaserNet 8 2 5 2 Optic cooling circuit Pump over current Alarm indication Alarm la...

Page 44: ...ater Alarm indication Alarm lamp Alarms Overcurrent is lighting red In the page Events Overcurrent of DI water heater will be indicated Action This alarm will stop chiller operation For possible reaso...

Page 45: ...g red In the page Events Overcurrent of fan will be indicated Action This alarm will stop chiller operation For possible reasons please see table 8 2 5 5 Reset of the alarm After resolving the problem...

Page 46: ...Events Tap water pressure sensor is defect will be indicated Action This alarm will stop chiller operation Please check following reasons step by step Failure Reason Corrective action Sensor fault a...

Page 47: ...nsor Alarm indication Alarm lamp Alarms Sensor failed is lighting red In the page Events Low pressure sensor is defect will be indicated Action This alarm will stop chiller operation Please check foll...

Page 48: ...ssor will switch off approximately 15 seconds after starting Provide at least a water flow of 20 l min Tap water temperature to low a Tap water temperature lower than 10 C a Check tap water temperatur...

Page 49: ...ection is wrong will be indicated Action If the compressor has been running for 5 seconds and the difference between high and low pressure is less than 4 bars the mostly reason will be that the rotati...

Page 50: ...urrent of the motor and make the right setting b Check power supply voltage Motor protection switch disconnects immediately as soon as the compressor is switched on a Fuses blown b Cable loose or defe...

Page 51: ...cal data pump 60 Hz Maximum operating current A 1 8 Max water flow m h 3 6 8 4 2 Technical data pump 50 HZ Maximum operating current A 1 8 Max water flow m h 3 0 8 4 3 Troubleshooting Failure Reason C...

Page 52: ...e Change rotating direction of the pump Overload of the motor a Flow rate of the pump too high a Reduce the flow rate 8 5 Disruption in operation of the fan A qualified person should check the current...

Page 53: ...ualified personnel WARNING WARNING In case of interruption of operation that cannot be solved with the help of this operational manual please disconnect the chiller and contact our service department...