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

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

Laser chiller
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Operating Manual
Page 1
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@ipgphotonics.com
Internet: www.ipgphotonics.com
Operating manual LC 340.01-A.3.5/6
Current revision status: Apr 4, 2019

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Summary of Contents for IPG Photonics LC 340.01-A.3.5/6

  • Page 1 Operating Manual Page 1 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@ipgphotonics.com Internet: www.ipgphotonics.com Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 2 Page 2 Notices © IPG Photonics Corporation. All rights reserved. You may not copy, reproduce, transmit, store in a retrieval system or adapt this publication, in any form, in any media or by any means, without the prior written permission of IPG Photonics Corporation (IPG), except as allowed under applicable copyright laws.
  • Page 3 Index of contents: GENERAL INFORMATION SAFETY AND ACCIDENT PREVENTION TECHNICAL DATA TRANSPORT FIRST START-UP OF THE CHILLER PIPING AND INSTRMENTS DIAGRAM ADJUSTING AND MAINTENANCE WORK INTERRUPTION OF OPERATION ELECTRICAL DRAWING Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 4 By carefully reading the manual before starting up the chiller you will be better able to ensure proper and safe operation of this equipment. In case of problems, please disconnect the chiller and contact our service department. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 5 The operational safety of the delivered unit is guaranteed only if the unit is properly used as intended in accordance with section 7.1. The limit values included in the technical data (see item 2) must not be exceeded. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 6 Do not proceed beyond the CAUTION sign until you CAUTION completely understand and meet the required conditions. ADVICE:  Refers to a specific instruction for handling, operation, or maintenance of the chiller. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 7 Electrical data: Power consumption @ design point: 21.0 (without tank heaters) Max. power consumption: 24.9 Connecting voltage: 460 V / 3 Ph / PE Voltage tolerance: +/- 10 Frequency: Control voltage: Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 8 Cooling water outlet temperature: °C + 21.0 Cooling water inlet temperature: °C + 28.6 Stability of cooling water temperature: °C +/- 1.0 Water content: Litre Water flow: l/min Water pressure: Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 9 Technical data DI-Water circuit: Cooling capacity: Cooling water outlet temperature: °C 30.0 Stability of cooling water temperature: °C +/- 0.5 Water content: Litre Water flow: l/min Water pressure: Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 10 Technical data 3.6 Pump charts 3.6.1 Laser, 60 Hz – Dual Pumps 3.6.2 Optic, 60 Hz Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 11 Technical data 3.6.3 Laser, 50 Hz – Dual Pumps 3.6.4 Optic, 50 Hz Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 12 Take care during transportation, not to damage the chiller. If damage occurs, the chiller must be checked by an expert before restarting. WARNING: WARNING Cable angle if lifting by crane: < 60° WARNING: WARNING Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 13 Transport Page 13 ADVICE:  Add Eyebolts for lifting by crane in accordance with DIN 580. WARNING: WARNING ADVICE:  Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 14 If the route of transport is not frost-protected, the complete unit has to be drained. We strongly recommend disassembling the DI-Cartridge as completely draining of the cartridge is difficult. To start up the unit again, please use a fresh DI-Cartridge. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 15 DANGER Do not touch any escaping gas Please take care for a well air ventilation inside the room Turn the disconnector in OFF Position Inform an HVAC Technician Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 16 Before starting up the chiller make sure, that: a) Laser and optic cooling circuit are connected with the laser b) All ball valves – laser and chiller – are open Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 17 5.6.3 Start up laser circuit When filling the tank with water use hose connections shown in the picture below. For the first filling you need about 120 litres of water. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 18 5.8 Motor protection switches Before starting up the chiller, switch the motor-circuit switches in ON-Position. Check if the adjusted currents are according to the currents given in the electric drawing. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 19 The correct rotation of the compressor is checked by the control board. If the compressor is rotating in the wrong direction, the control board will switch off the chiller. Checking rotation of the pump Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 20 The water level inside the tank will be controlled by level indicators. If the water level is too low, the chiller will be switched off. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 21 Piping and Instruments Diagram Page 21 6 PIPING AND INSTRMENTS DIAGRAM Figure 3: Piping and Instruments Diagram (P&I Diagram) Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 22 28 bar, the high pressure switch (A13, PS2) will stop the chiller immediately. Such a failure is by definition, an emergency shut off. Therefore this failure has to be reset manually at the high Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 23 (M1 & M2) and the refrigeration circuit starts again. Condenser 2 Condenser 1 Evaporator Compressor M1 Compressor M2 Sensor B10, (B15) Switch A13, PS2 Figure 5: Refrigerant module Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 24 Piping and Instruments Diagram Page 24 Sensor B9 Expansion valve Sight glass Figure 6: Refrigerant module Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 25 Water pump 2 laser circuit M4.2 Tank heater laser circuit Liquid level switch Refilling required Liquid level switch Dry run protection pump Pressure sensor Laser cooling circuit Temperature sensor 1 Laser cooling circuit Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 26 The cooling water for the optic circuit is supplied by pump (M5). If the cooling water temperature is too low, the heater (E2) will heat up the water to the required temperature. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 27 Solenoid Y2 (SOL 2) Solenoid Y1 (SOL 1) Sensor B7 Sensor B12 Sensor B5 Sensor B3 Sensor B1 Sensor B4 Sensor B2 Sensor A3 (A4) Heater E1 Heater E2 Figure 8: Hydraulic module Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 28 Main chiller fuse OK (see electrical diagram) Chiller control voltage fuse OK (see electrical diagram) If activated, chiller enabled from laser No leakage error No malfunction in the chiller Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 29 Loosen the locking screw and adjust the valve as needed for 50 or 60 Hz operation. Once the valve is adjusted, tighten the locking screw. The laser supply ball valve should be closed while performing this adjustment. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 30 Even if the chiller is OFF, parts of the electrical circuit will be under high voltage until the main circuit breaker is opened. Do not attempt to perform any work on the chiller unless the unit is DANGER Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 31 (tank empty), apply a few drops of silicone oil on the spindle between the head piece and coupling. For this you must disassemble the coupling protection cover. The motor bearings are maintenance-free. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 32 Figure 10: Changing of the DI-Cartridge 7.5.4 Changing the air filter Disassemble the air inlet grids and change the air filters. Please contact our service department for a new filter. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 33 7.5.6 Checking the refrigerant circuit for oil leakage Refrigerant leaks always have oil with them. If oil leakages are found, please contact our service department. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 34 Reset of the warning: After refilling water, the warning light will be switched off automatically. ADVICE:  Make sure, that the temperature of the water does not exceed 30°C. 7.6.2 Water temperature warning Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 35 26.0°C Hysteresis: 0.5°C Following conditions will activate this warning message: Tap water temperature between 18 and 18.5°C (near minimum limit) Tap water temperature between 25.5 and 26°C (near maximum limit) Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 36 Tap water pressure between 1.0 and 1.5 bar (near minimum limit) Tap water pressure between 4.5 and 5.0 bar (near maximum limit) b) DI water pressure near limit DI Water Pressure P(MIN): 1.0 bar P(MAX): 5.0 bar Hysteresis: 0.5 bar Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 37 Following conditions will activate this warning massage: Low pressure refrigerant circuit between 2 and 4°C For further information please see 8 Low pressure refrigerant circuit Alarm: > 2 °C Warning: > 4 °C 2°C 4°C Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 38 All warning messages will be indicated in LaserNet. To get an overview, please go to the page “Chiller” For further details please go to the page “Events”. Here you get detailed information about all active alarm and warning messages. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 39 After refilling tap and DI water, you can reset warning message. The red light will be switched off. ADVICE:  Make sure, that the temperature of the water does not exceed 30°C. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 40 If the default settings are OK, please call our service department. Reset of the alarm: After solving the problem, you can reset the alarm by pushing the reset button in LaserNet. The red light will be switched off. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 41 Reset of the alarm: After solving the problem, you can reset the alarm by pushing the reset button in LaserNet. The red light will be switched off. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 42 Optic Pump is operated a) Reduce water flow by Too high flow outside characteristic closing the regulating curve valve for the pump (M5). Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 43 Alarm lamp “Alarms / Overcurrent” is lighting red. In the page “Events“ “Overcurrent of tap water heater” will be indicated. Action: This alarm will stop chiller operation. Please check following reasons step by step: Failure Reason Corrective Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 44 Corrective a) Power fault a) Check the power supply Missing phase b) Phase not connected b) Check if all phases are connected at the corresponding point inside the control cabinet Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 45 Cable loose a) Check the terminals for Bad contact contact Reset of the alarm: After solving the problem, you can reset the alarm by pushing the reset button in Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 46 Alarm lamp “Alarms / Sensor failed” is lighting red. In the page “Events“ “DI water pressure sensor is defect” will be indicated. Action: This alarm will stop chiller operation. Please see item 8.2.6.3 and check points given in the table step by step. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 47 Reset of the alarm: After solving the problem, you can reset the alarm by pushing the reset button in LaserNet. The red light will be switched off. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 48 2°C and the input time delay of the compressor is up. 8.2.8 HIGH PRESSURE COMPRESSOR FAULT ALARM Alarm indication: Alarm lamp “Alarms / Sensor failed” is lighting red. In the page “Events“ “High pressure compressor fault” will be indicated. Action: Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 49 Make sure that nobody can switch on again. Reset of the alarm: After changing the phases L1 and L2, the chiller has to be reconnected to the line Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 50 A qualified person should check the current of the motor. Please inform our service department if the measured value differs more than 10%. In this case the winding of the motor may be defective and the motor must be changed. Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 51 Maximum operating current: Max. water flow: m³/h 8.4.3 Troubleshooting Failure Reason Corrective action See 8.3.2 See 8.3.2 See 8.3.2 a) Shaft seal defective a) Replace shaft seal Leakage at the shaft seal Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 52 > 60°C 40°C disconnected sometimes b) Operating temperature b) Too little air flow due to of the fan > 60°C polluted air filter c) See 8.3.2 c) See 8.3.2 Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...
  • Page 53 The electro-technical connections of the chiller must be performed according to and conforming to all relevant VDE, EN and IEC standards. Beyond that, the technical connection requirements of the local authorities must be observed. DANGER Operating manual LC 340.01-A.3.5/6 Current revision status: Apr 4, 2019...

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