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38

SG20 Operation Manual

TROUBLESHOOTING

Safety precautions

Before performing any troubleshooting pro-
cedures within this section, review the SAFETY
section on page 3.

Troubleshooting information

Inspection for failure measures, repair, and re-
placement require specialized expertise. If you
do not have the specialized expertise, contact
your authorized Smartgyro dealer or distribu-
tor.

Supply the authorized Smartgyro dealer or dis-
tributor with the following information:

- Model name and serial number of your gyro

stabilizer

- Total number of operation hours

- Displayed alarm log (if alarm log is detected)

- Anomaly status (gyro stabilizer status)

Troubleshooting

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Содержание 102OM405

Страница 1: ...Operation manual GYRO STABILIZER SG20 en English...

Страница 2: ...any time without notice Smartgyro is a registered trademark of Smartgyro s r l in the United States the European Union and the United Kingdom All Rights Reserved No part of this publication may be rep...

Страница 3: ...control display 18 Roll Angle Monitor Page 21 Alarm Log Page 22 Performance Monitor Page 24 Gyro stabilizer operation 26 Introduction 26 Safety precautions 26 Gyro Stabilizer Startup and Stabilizatio...

Страница 4: ...ii SG20 Operation Manual...

Страница 5: ...please follow these rec ommendations Read and understand this Operation Manu al before you operate the gyro stabilizer to ensure that you follow safe operating prac tices and maintenance procedures Ke...

Страница 6: ...2 SG20 Operation Manual...

Страница 7: ...at the same time Safety symbols These are the warning signs used in this manu al and on the product This safety alert symbol appears with most safety statements It means attention become alert your s...

Страница 8: ...lessness can cause burns cuts mutilation as phyxiation other bodily injury or death This information contains general safety precau tions and guidelines that must be followed to reduce risk to person...

Страница 9: ...pment including appropri ate clothing gloves work shoes and eye and hearing protection as required by the task at hand WARNING Entanglement Hazard When servicing the gyro stabi lizer make sure that th...

Страница 10: ...RNING Electrical Shock Hazard Inside the gyro unit hazardous voltages are present For this reason the cover must not be opened when the gyro system is running and AC power is connected Also never disc...

Страница 11: ...ollow the guidelines of the EPA or other gov ernmental agencies for the proper disposal of hazardous materials such as coolant and hy draulic oil Consult the local authorities or rec lamation facility...

Страница 12: ...to lift it out for maintenance ensuring significant savings in time and cost For larger vessels in order to increase the anti roll torque more than one Smartgyro SG20 can operate in parallel on the sa...

Страница 13: ...it Control display 5 DC 12 V 6 6 4 3 1 4 2 5 AC 115V nominal 50 60 Hz AC 220V nominal 50 60 Hz 7 Figure 1 1 SG20 gyro unit 2 Control display 3 See water pump 1 4 Electrical connections electronic cont...

Страница 14: ...erated by the combined effect of having a high inertia flywheel rotat ing inside the gyro sphere and the sphere tilting around the precession axis The preces sion movement is automatically created by...

Страница 15: ...ifold 6 Vacuum sensor 7 Gyro sphere and flywheel 8 Hydraulic cylinders 9 Precession angle sensor 10 Base frame 11 Lower bearing 12 Inverter box 13 Upper bearing 14 Glycol pump 15 Control box 16 Motor...

Страница 16: ...nd lower bearings Because the upper and lower bearings support the flywheel rotat ing at high speed they are subjected to heavy loads and high tem peratures Therefore the glycol pump circulates coolan...

Страница 17: ...ut 40 seconds since power on the Home page Figure 5 appears The home page groups and displays the most important parameters of the gyro unit Figure 4 The main purpose of the display is to activate con...

Страница 18: ...d has not reached a minimum velocity set at 55 of top speed the precession lock toggle icon has no effect on preces sion which remains locked this condition is signalled by the presence of yellow circ...

Страница 19: ...ght depending on the angle of the sphere See Indi cation of precession angle on page 17 7 Speed indication Flywheel rotation speed given in both digital and analogue In digital form it is shown as a p...

Страница 20: ...ownward bow down Figure 8 If the roll is positive the semi circular bar on the Home page moves to the right Figure 9 Figure 9 A negative roll is observed when the port side of the vessel is angled upw...

Страница 21: ...precession is negative the blue bar on the home page goes to the left Figure 16 Figure 16 Precession angle is positive when the gyro sphere is tilted toward the bow in Typical in stallation mode see...

Страница 22: ...r ner Figure 18 1 will return you to the Home page Pressing the icon with the padlock symbol Fig ure 18 2 will take you to a password protect ed page only accessible to service personnel for inspectin...

Страница 23: ...ts all the connected gyros if these are properly connected and powered i e the new date and time are sent to all the connected gyros so that one programming only is needed to set all It may happen how...

Страница 24: ...refer to the software packages residing on the display the lowest to the Control Unit of the gyro unit Figure 22 Adjusting the brightness of the control display Pressing the brightness icon on the se...

Страница 25: ...raph is autoscaled i e the upper and lower limits of the Y axis are automatically adjusted to fit the actual roll values Once the Y scale is set with the gestures it re mains fixed and does not change...

Страница 26: ...e alarm log page 1 2 3 Figure 29 Anomaly messages are displayed in three dif ferent colours depending upon their state Red Anomaly still present and not ac knowledged by the operator Green Anomaly sti...

Страница 27: ...f detected anomalies As the number of anomalies gradually increas es they are added to the list Accordingly the bottom line always represents the most recent one The column Time indicates the time of...

Страница 28: ...L Temperature of the lower bearing pack C or F 4 Precession Angle Actual precession angle expressed in degrees See Indication of precession angle on page 17 5 Sea H Number of hours during which preces...

Страница 29: ...and the system automatically shuts off the gyro system See TROUBLESHOOT ING on page 38 STOP SPINNING A state in which the power supply to the gyro motor is cut and the flywheel decelerates in a contr...

Страница 30: ...on page 3 WARNING Keep away while the gyro stabilizer is operating NOTICE If there is an anomaly while the gyro stabiliz er is operating identify the cause and fix the problem Depending on the abnorm...

Страница 31: ...he system will detect an AC power absence fault However this disappears as soon as AC power supply is supplied Figure 1 Figure 2 Note When the control display is powered on a splash screen will appear...

Страница 32: ...or a no communication anomaly on the CAN line between the motor drive and the control board the cir cle around the ON OFF remains grey Check the details of the anomaly on the alarm log page see Alarm...

Страница 33: ...around the precession icon Fig ure 6 1 is yellow 1 Figure 6 7 After the flywheel speed exceeds 55 of the top speed precession is allowed and the circle around the icon goes blue indi cating that prec...

Страница 34: ...eleration state is no longer present During precession lock due to high acceler ation conditions the circle around the pre cession icon turns red as when precession is intentionally stopped Temperatur...

Страница 35: ...when the flywheel is stopped and as long as the temperature of bearings is above 45 C Figure 11 Gyro Stabilizer Shutdown 1 Go to the home page 2 Press the power ON OFF icon Figure 10 1 1 Figure 10 Not...

Страница 36: ...he mid dle of the screen To restart the system press the power ON OFF icon Emergency shutdown Emergency shutdown is a method to stop the rotation of the flywheel by forcing the motor drive to cut powe...

Страница 37: ...osits on gyro unit surfaces as frequently as possible possibly wiping them down with mild soap and water and rinsing This section of the instruction manual de scribes maintenance details and maintenan...

Страница 38: ...g of the number of operation hours each day and a log of the daily checks per formed Also note the date type of repair and parts used for any service needed between the periodic maintenance intervals...

Страница 39: ...d are difficult to es tablish clearly The following should be treated only as a general guideline System Item Periodic Maintenance Interval Every 300 hours or 6 months 1 Every 6 months or 500 hours 1...

Страница 40: ...es and the manifold Check that the gyro sphere is locked when precession is not permitted If it is not locked perform air purging of the hydraulic circuit and in case flush and refill the hydraulic ci...

Страница 41: ...or wear and damage When the parts are replaced the air purge of the cooling circuit is performed and the coolant is replenished with a mixing ratio of 50 ethylene glycol to 50 soft water Every 12 mont...

Страница 42: ...repair and re placement require specialized expertise If you do not have the specialized expertise contact your authorized Smartgyro dealer or distribu tor Supply the authorized Smartgyro dealer or di...

Страница 43: ...me way in the Alarm Log page In the occurrence of a low level anomaly the gyro system will continue to operate but in the occurrence of a high level anomaly it will lock the precession and stop the mo...

Страница 44: ...associated with the inverter box are securely connected Contact Smartgyro dealer or distributor if the fault remains Mains Outage Motor drive disabled flywheel deceleration 2 AC power is not being sup...

Страница 45: ...ed Normal operation One of the two connections with the pressure sensors is disconnected or its value is invalid Check that the connector is securely connected to the pressure sensor on the manifold C...

Страница 46: ...ealer or distributor if the fault remains U Temp Sens Fail L Temp Sens Fail both detected Motor drive disabled flywheel deceleration Precession is not allowed Both connections with the temperature sen...

Страница 47: ...um circuit are securely fastened to the quick connect couplings on the gyro sphere and on the vacuum pump Contact Smartgyro dealer or distributor if the fault remains RTC Fail Normal operation In case...

Страница 48: ...44 SG20 Operation Manual SPECIFICATIONS Introduction Specifications are subject to change without prior notice Specifications...

Страница 49: ...single phase Input voltage DC 12 V Spool up AC power 2 5 3 0 kW Operating AC power 1 5 2 5 kW sea state dependent DC power Spool up and operating 150 W including display Seawater supply 15 min 30 max...

Страница 50: ...46 SG20 Operation Manual...

Страница 51: ...47 SG20 Operation Manual...

Страница 52: ...Issued by Smartgyro s r l Edited by Smartgyro s r l 700402 01 Smartgyro s r l Via Privata O T O 11 19136 La Spezia ITALY Phone 39 0 187 1859146 www smartgyro com Rev 2 0 August 2022...

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