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Registration code
Collection: APC G VSD
Tab:
38
Sequence: 980
Replaces
No. 2920 1190 04
No. 2920 1190 05
1997-06
Important: This book must be used together with the "User manual for Elektronikon®
regulator for GA50 VSD and GA90 VSD compressors"
This instruction book meets the requirements for instructions specified by the
machinery directive 89/392/EEC and is valid for CE as well as non-CE labelled
machines
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Table of Contents
Related Manuals for Atlas Copco GA50 (W) VSD
Summary of Contents for Atlas Copco GA50 (W) VSD
- Page 1 Important: This book must be used together with the "User manual for Elektronikon® regulator for GA50 VSD and GA90 VSD compressors" Registration code This instruction book meets the requirements for instructions specified by the Collection: APC G VSD machinery directive 89/392/EEC and is valid for CE as well as non-CE labelled Tab: machines Sequence: 980...
- Page 2 1 Leading particulars ......3 4.2.1 GA50 (W) VSD ..... 26 1.1 General description .
- Page 3 Instruction book Industrial Air Division Air drawn through filter (AF) and check valve (CV) into GA50 (W) VSD and GA90 (W) VSD (Variable Speed Drive compressor element (E) is compressed. Compressed air and motor) are stationary, single-stage, oil-injected screw oil flow into air receiver/oil separator (AR). The air is compressors driven by an electric motor.
- Page 4 Industrial Air Division Instruction book Fig. 2a. Flow diagram of air-cooled GA VSD compressor, compressor stopped and isolator switch switched off Fig. 2b. Flow diagram of water-cooled GA VSD compressor, compressor running 2920 1190 05...
- Page 5 Instruction book Industrial Air Division Air filter DP2. Oil drain plug, oil stop valve PDT1. Differential pressure sensor, oil Air receiver/oil separator DP3. Oil drain plug, compressor separator Air outlet valve element PT20. Pressure sensor, air outlet Oil cooler by-pass valve Compressor element Rf1.
- Page 6 Industrial Air Division Instruction book Air receiver/oil separator Air outlet valve Air cooler Oil cooler Check valve Compressor element Elektronikon control module Oil filler plug Fan, compressor coolers Oil level gauge Compressor motor Fan motor Oil filter Isolator switch Safety valve Venting plug, oil cooler Cooler plate Flexible, oil drain...
- Page 7 Instruction book Industrial Air Division Air filter Air receiver/oil separator Oil cooler by-pass valve Air cooler Oil cooler DP1. Oil drain plug, air receiver Compressor element Oil filler plug Fan, compressor coolers Oil level gauge Air cooler moisture trap Venting plug, oil cooler Cooler plate Fig.
- Page 8 Industrial Air Division Instruction book Fig. 6a. Electrical diagram of GA50 VSD 2920 1190 05...
- Page 9 Instruction book Industrial Air Division Fig. 6b. Electrical diagram of GA90 (W) VSD 2920 1190 05...
- Page 10 See below. Protecting the motor Display Indicates: GA50 (W) VSD the name of the sensor of which If the motor temperature should rise above the setting of the the actual reading is displayed regulator, the regulator will stop the motor.
- Page 11 Instruction book Industrial Air Division Ref. Designation Function Delivery air 2500 Start button Push button start Menu More compressor. LED (1) lights up indicating that the regulator is operative (in automatic operation). Fig. 7b. Example of the main display Stop button Push button stop...
- Page 12 Industrial Air Division Instruction book F1 F2 Fig. 8a. Electric cabinet of GA50 VSD Q16 F1 F1/F4. Fuses K15. Contactor, fan motor Inductor Q15. Circuit breaker, fan motor Q16. Circuit breaker, invertor Isolator switch Transformer Transformer Invertor Vibration damper Nut (to be removed) Cover Figs.
- Page 13 To select a submenu or to read more details of a selection shown on display The parameters of the start and speed regulation unit (U1) are factory-set and need no adjustment. Changing parameters may damage the compressor; consult Atlas Copco. Check valve Oil filter TT11. Temperature sensor, compressor...
- Page 14 Industrial Air Division Instruction book Fig. 10a. Dimension drawing of GA50 VSD 2920 1190 05...
- Page 15 Instruction book Industrial Air Division Fig. 10b. Dimension drawing of GA50 W VSD 2920 1190 05...
- Page 16 Industrial Air Division Instruction book Fig. 10c. Dimension drawing of GA90 VSD 2920 1190 05...
- Page 17 Instruction book Industrial Air Division Fig. 10d. Dimension drawing of GA90 W VSD 2920 1190 05...
- Page 18 Industrial Air Division Instruction book Compressor type GA50 (W) VSD GA90 (W) VSD Attention Local regulations remain applicable if they are stricter than Voltage (V) ... 380/460 the values proposed below.
- Page 19 Instruction book Industrial Air Division Ref. Description/recommendation Ref. Description/recommendation Install the compressor on a level floor suitable for taking The maximum total pipe length (including the weight of the compressor. interconnecting piping between compressor and receiver) can be calculated as follows: Compressed air outlet valve.
- Page 20 Industrial Air Division Instruction book Ref. Description/recommendation Following requirements are given as a general rule to prevent cooling water problems. If in any doubt, consult Atlas Copco. pipe length in m ∆P = maximum allowable pressure drop (recommended 0.1 bar (1.45 psi))
- Page 21 2. Consult section 2 for the dimension drawings, electric cable 11. ON GA50 (W) VSD, switch on the voltage. Open the air size and installation proposal. outlet valve and start the compressor. Check the rotation...
- Page 22 Special precautions must be taken in order not to outlet valve and open manual drain valve (Dm-Fig. 5). damage the convertor. Consult Atlas Copco. Wait until the compressor has depressurized. Unscrew Improve the lubrication of the compressor element at oil filler plug (FC-Figs.
- Page 23 Instruction book Industrial Air Division Remark filler plug (FC-Figs. 12) only one turn to permit any It is possible to remotely control following functions: pressure in the system to escape. Remove the filler plug and add oil until the level reaches the filler neck (adapter part included).
- Page 24 Industrial Air Division Instruction book 1. Press stop button O (9). LED (1) goes out. The compressor Attention: Before starting any maintenance, press stop button stops and the message Programmed stop appears on the O (9-Fig. 7a), switch off the isolator switch (S0-Figs. 1 and screen.
- Page 25 Attention: For overhauling or carrying out preventive maintenance, service kits are available. See section 4.9. Atlas Copco also offers several types of Service contracts, relieving you of all preventive maintenance work. For more details, consult your nearest Atlas Copco representative.
- Page 26 Run the compressor: when reaching the setting, the compressor must shut down. Afterwards, reset the warning and shut-down levels to their original values. 10. Atlas Copco has oil separators to separate the major part of the oil from the condensate to ensure that the separated water meets the requirements of the environmental codes.
- Page 27 Industrial Air Division Consult section 4.1 for the change intervals and section 4.4 for the oil specifications. It is strongly recommended to use Atlas Copco Roto- injectfluid. This is special oil for screw compressors which keeps the compressor in excellent condition.
- Page 28 Industrial Air Division Instruction book Example If operating at a pressure of 10 bar(e) in an ambient temperature of 20°C and at a relative air humidity of 100 %, the minimum temperature to prevent condensate from forming is 68°C. Regulate the cooling water flow during loaded operation to obtain a temperature between 70°C and approx.
- Page 29 3. Reset the air filter service indicator. Reset the air filter service warning. 1) Service kits are available offering you the benefits of genuine Atlas Copco parts while keeping the maintenance budget low. The kits comprise all parts needed for servicing. Keep the coolers clean to maintain the cooling efficiency.
- Page 30 Mechanical faults and suggested remedies (Figs. 2) water system due to dirt or formation of scale Explanation of the table below: g. Consult Atlas Copco Conditions of the compressor, always preceded by a number, h. Compressor element (E) out of order are printed in bold.
- Page 31 Relative humidity ..... % For water-cooled compressors also: Cooling water inlet temperature ..°C GA50 (W) VSD 14.5 bar(e) GA90 (W) VSD 14.5 bar(e)
- Page 32 Industrial Air Division Instruction book Working pressure ......... bar(e) 12.5 Frequency .